UPD301B-I [MICROCHIP]
Stand-alone USB Type-C⢠Power Delivery 3.0 Controller;型号: | UPD301B-I |
厂家: | MICROCHIP |
描述: | Stand-alone USB Type-C⢠Power Delivery 3.0 Controller |
文件: | 总45页 (文件大小:1529K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
UPD301B/C
Stand-alone USB Type-C™ Power Delivery 3.0 Controller
• 32-bit ARM Cortex-M0+ CPU
Highlights
• USB Type-C™ (1) Power Delivery (PD) Solution for
- Source-only applications (UPD301B)
- 64KB Flash, 8KB RAM
• Optional Two, Three, or Four Port Solution via
External UPD350
- Sink-only, Dual Role Power, and Dual Role
Data applications (UPD301C)
- SPI for External UPD350 Communication
- Power Delivery Firmware Controls All Ports
• Companion device for USB PD Software Frame-
work (PSF) open source firmware stack
• Integrated Analog Discrete Components
- VCONN FETs with Rp/Rd Switching
- Dead Battery Rd termination (UPD301C only)
- Programmable Current Sense for
Overcurrent Conditions
• Fully Customizable software
• Standard Power Delivery power profiles
(15/27/45/60/100W) supported with
no software modification
- Voltage Sense for Overvoltage Conditions
• USB Power Delivery 3.0 compliant MAC
• USB Power Delivery MAC
• USB Type-C™ connector support with
connection detection and control
- Compliant with USB Power Delivery
Specification Revision 3.0
• Integrated Analog Discrete Components Reduce
Bill of Materials and Design Footprint
- Power Delivery Packet Framing
- CRC Checking/Generation
- 4B/5B Encoding/Decoding
- BMC Encoding/Decoding
• Easily Supports up to 3 additional Power Delivery
ports Port via UPD350 Add-on
- EOP/SOP Generation for PD Frames
- SOP Detection and SOP Header Processing
- Separate RX/TX FIFOs
• Commercial, Industrial, and Automotive
Temperature Support
- Automatic GoodCRC Message Generation
- Automatic Retry Generation
- Error Handling
Target Applications
• Point-of-Sale Terminals
• Charging Lockers
- Low Standby Power Support
• IoT Products and Sensors
• Smart Speakers and Monitors
• Conference Systems
• USB Type-C Cable Detect Logic
- Auto Cable Attach & Orientation Detection
- Routes Baseband Communication to Respec-
tive CC Pin per Detected Orientation
- VCONN Supply Control for Active Cable
- Charging Current Capability Detection
• Power Tools
• Multi-port Charging Docks
• Automotive Rear Seat Charging Ports
• Power and I/Os
- Integrated 1.8V Voltage Regulator
- 10 Configurable General Purpose I/O Pins
Key Benefits
• Fully Customizable Power Delivery Firmware
• Package
- Industry standard MPLABX development and
programming environment
- Supports all Standard Power Delivery profiles
(15/27/45/60/100W) and custom profiles
- Supports Dual Role Port (DRP) operation
(UPD301C only)
- Supports Alternate Mode operation
- PSF software framework enables customized
PD applications
- 40-VQFN (6.0mm x 6.0mm)
• Environmental
- Commercial Temperature Range
(0°C to +70°C)
- Industrial / AEC-Q100 Automotive Grade 3
Temperature Range (-40°C to +85°C)
1. USB Type-C™ and USB-C™ are trademarks of USB Implementers Forum.
2020 Microchip Technology Inc.
DS00003412A-page 1
UPD301B/C
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The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).
Errata
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DS00003412A-page 2
2020 Microchip Technology Inc.
UPD301B/C
Table of Contents
1.0 Preface ............................................................................................................................................................................................ 4
2.0 Introduction ..................................................................................................................................................................................... 6
3.0 Pin Descriptions and Configuration ............................................................................................................................................... 13
4.0 Functional Descriptions ................................................................................................................................................................. 18
5.0 Operational Characteristics ........................................................................................................................................................... 30
6.0 Package Information ..................................................................................................................................................................... 37
Appendix A: Data Sheet Revision History ........................................................................................................................................... 41
The Microchip Web Site ...................................................................................................................................................................... 42
Customer Change Notification Service ............................................................................................................................................... 42
Customer Support ............................................................................................................................................................................... 42
Product Identification System ............................................................................................................................................................. 43
2020 Microchip Technology Inc.
DS00003412A-page 3
UPD301B/C
1.0
1.1
PREFACE
Glossary of Terms
TABLE 1-1:
Term
GLOSSARY OF TERMS
Definition
BCI
Baseband CC Interface
Billboard
USB Billboard Device. A required USB device class for UFPs which support Alternate Modes
in order to provide product information to the USB Host.
BIST
BMC
Byte
CC
Built-In Self Test
Bi-phase Mark Coding
8-bits
Generic reference to USB Type-C™ Cable / Connector CC1/CC2 pins
Control and Status Register
Downstream Facing Port (USB Type-C™ Specification definition)
DisplayPort (a VESA standard interface)
Dual-Role Power
CSR
DFP
DP
DRP
ESD
FIFO
GPIO
Host
HBM
HS
Electro-Static Discharge
First In First Out buffer
General Purpose Input/Output
External system (Includes processor, application software, etc.)
Human Body Model (Simulates ESD from humans)
High-Speed
LDO
MAC
Microchip
N/A
Linear Drop-Out regulator
Media Access Controller
Microchip Technology Incorporated
Not Applicable
NC
No Connect (pin)
OCS
PD / UPD
PDO
Over-Current Sense
USB Power Delivery
Power Delivery Object (USB PD Specification definition)
PDOs enable the port to indicate its Port Partner supported combinations of Voltage/Current or
Power as well as the type of supply (Fixed, Variable, Battery) in Source Role or Sink Role.
PIO
General Purpose I/O
POR
Power-On Reset
Port Partner
PRBS
Remote port which is connected to the UPD301B/C’s local port
Pseudo Random Binary Sequence
USB Type-C port is sinking power from its Port Partner
Source Role
Source-only
Operation
Operation exclusively in USB Type-C / Power Delivery Source Role as defined in the USB
Type-C and Power-Delivery specifications. In this mode of operation, USB Type-C Dual-Role
Power Operation is not supported and there is no support for USB Power Role Swap.
SPI
SS
Serial Peripheral Interface
SuperSpeed
Stand-alone Mode Chip operation without the control or configuration by an external MCU. Policy is defined locally
by the UPD301B/C firmware. Configuration is achieved by use of configuration straps.
UFP
USB
Upstream Facing Port (USB Type-C™ Specification definition)
Universal Serial Bus
DS00003412A-page 4
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UPD301B/C
TABLE 1-1:
Term
GLOSSARY OF TERMS (CONTINUED)
Definition
USB Power
Port is operating using USB Power Delivery protocols in conformance to the USB PD Specifi-
Delivery Operation cation.
USB Power
Role Swap
Message sequence as defined in the USB PD Specification, enabling a transition between
Source Role and Sink Role during USB Power Delivery Operation
USB Type-C™
USB Type-C™ Cable / Connector
1.2
Buffer Types
TABLE 1-2:
BUFFER TYPES
Description
Buffer Type
I
Input
IS
Schmitt-triggered input
O2
OD2
O8
PD
Output with 2 mA sink and 2 mA source
Open-drain output with 2 mA sink and 2 mA source
Output with 8 mA sink and 8 mA source
200kΩ (typical) internal pull-down.
Note:
Internal pull-down resistors prevent unconnected inputs from floating. Do not rely
on internal resistors to drive signals external to the device. When connected to a
load that must be pulled low, an external resistor must be added.
AI
AO
AIO
P
Analog input
Analog output
Analog bidirectional
Power pin
Note:
Refer to Section 5.5, "DC Characteristics," on page 33 for the electrical characteristics of the various buf-
fers.
1.3
References
• Microchip UPD350 Datasheet: https://www.microchip.com/wwwproducts/en/UPD350
• Microchip SAM D20 Datasheet:
http://ww1.microchip.com/downloads/en/DeviceDoc/SAM_D20_%20Family_Datasheet_DS60001504C.pdf
• USB Power Delivery: https://www.usb.org/document-library/usb-power-delivery.
• USB Type-C™ Specification: ihttps://www.usb.org/document-library/usb-type-cr-cable-and-connector-specifica-
tion-revision-14-march-29-2019
2020 Microchip Technology Inc.
DS00003412A-page 5
UPD301B/C
2.0
2.1
INTRODUCTION
General Description
The UPD301B/C is a stand-alone, small form factor USB Type-C™ Power Delivery (PD) Port Controller designed to
adhere to the USB Type-C™ Cable and Connector Specification and USB Power Delivery 3.0 Specification. The
UPD301B/C provides stand-alone operation for a wide range of PD applications, enabling cable plug orientation and
detection for a USB Type-C receptacle, and implementing baseband communication with a partner USB Type-C device
via the integrated USB Power Delivery 3.0 MAC.
The UPD301B/C is an integrated PD solution with SAMD20 (32-bit ARM Cortex-M0+) microcontroller and UPD350 PD
MAC/PHY functionality. The embedded 32-bit ARM Cortex-M0+ can execute the USB Power Delivery Framework (PSF)
Power Delivery stack. Optionally, a second, third, or fourth PD port is supported via SPI connection of additional external
Microchip UPD350 devices. The UPD301B/C devices are shipped blank and require programming with compiled appli-
cation specific code before operation.
Additionally, the UPD301B/C integrates many of the analog discrete components required for USB Type-C PD applica-
tions, including two VCONN FETs with Rp/Rd switching and current/voltage sense circuitry for over-voltage/current
detection. By integrating the PD firmware and many of the analog discrete components required for USB Type-C PD
applications, the UPD301B/C provides a low cost, stand-alone, fast time-to-market solution for consumer, industrial, and
automotive applications.
The Microchip UPD301B/C family includes the following devices:
• UPD301B
• UPD301C
The UPD301B/C is available in commercial (0°C to +70°C) and industrial/automotive grade 3 (-40°C to +85°C) tempera-
ture ranges. The UPD301B/C is available with dead battery support enabled or disabled in hardware. Device specific
features that do not pertain to the entire UPD301B/C family are called out independently throughout this document.
Table 2-1 provides a summary of the feature differences between family members. For ordering information, refer to the
Product Identification System on page 43.
TABLE 2-1:
UPD301B/C FAMILY FEATURE MATRIX
UPD301B
UPD301C
40-VQFN
40-VQFN
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2.2
USB Power Delivery Software Framework
The PSF firmware stack allows for a wide range of USB Power Delivery applications, including but not limited to: Single
or Multi-Port source Only applications, Bus-Powered Sink applications, Battery-Powered Sink applications, and Dual
Role Data / Dual Role Power applications such as PD-based docking stations or PD-based dongles.
The PSF firmware stack is continuously deployed. Not all features that are able to be supported by the UPD301B/C
device are necessarily supported by PSF. The supported features may be expanded over time. The PSF firmware stack
can be downloaded from the UPD301B/C product page. Refer to the UPD301B/C product page and PSF Online code
repository for details on the currently supported feature set and future development road-map. Additional feature devel-
opment may be requested through Microchip support channels.
DS00003412A-page 6
2020 Microchip Technology Inc.
UPD301B/C
2.3
Example Applications
The UPD301B/C has been designed for multiple applications, including:
• UPD301B
- Source-Only Applications (E.G., Charging Ports) (UPD301B Only)
- Two-Port, Three-Port, and Four-Port Source-Only Applications (E.G., Automotive Rear Seat Charging)
(UPD301B Only)
• UPD301C
- Bus-Powered or Battery Powered Sink-Only Applications (UPD301C Only)
- Dual Role Power/Data Application (5V Source, High Voltage Sink) (UPD301C Only)
- Dual Role Power/Data Application (High Voltage Source, 5V @ 0A Sink) (UPD301C Only)
- 2-Port Dual Role Power/Data Application ‘Charge-Through Adapter’ (UPD301C Only)
Note:
Single-Port Source, Single-Port Sink, and Dual-Port Source modes are the only supported modes of oper-
ation. Dual-Port Sink and Source + Sink modes are not supported without custom firmware.
2.3.1
SOURCE-ONLY APPLICATIONS (E.G., CHARGING PORTS) (UPD301B ONLY)
The simplest UPD301B application is a power source (Source-Only), as shown in Figure 2-1. The UPD301B control
I/O configures the DC-DC converter, selecting the output voltage, and controls the load switch to regulate and protect
the output voltage. The load switch can also be replaced by discrete FETs and over-current / over-voltage protection
circuits.
Additional notes on Source-Only Charging Port Applications:
• Supporting USB data is not required for a Charging Port.
• A Power Source Load Switch is optional for Source-Only ports. Source-Only ports are permitted to maintain a
large bulk capacitance on VBUS at all times, even when the port is in the detached state.
• USB3 operation is optional for PD docking ports.
FIGURE 2-1:
SYSTEM BLOCK DIAGRAM - SOURCE-ONLY APPLICATION
Optional
DC‐DC
Converter
DC In
Load Switch
Control I/O
Fault Indicator
(GPIO, DAC,
or I2C)
VBUS
VBUS_DET
Microchip
UPD301B
POWER
RESET
CC1
CC2
2020 Microchip Technology Inc.
DS00003412A-page 7
UPD301B/C
2.3.2
TWO-PORT, THREE-PORT, AND FOUR-PORT SOURCE-ONLY APPLICATIONS
(E.G., AUTOMOTIVE REAR SEAT CHARGING) (UPD301B ONLY)
Some applications, such as a automotive rear seat charging port, may need multiple USB Type-C™ power delivery
ports. These ports can be implemented by connecting a UPD301B and a UPD350 via the SPI interface, as shown in
Figure 2-2. The UPD301B will execute the stack for the UPD350. The two-port implementation supports dynamic power
allocation (e.g., go-to power min based on an external input).
FIGURE 2-2:
SYSTEM BLOCK DIAGRAM - TWO-PORT APPLICATION
Optional
DC‐DC
Converter
DC In
Load Switch
Fault Indicator
Control I/O
(GPIO, DAC,
or I2C)
VBUS
VBUS_DET
Microchip
UPD301B
CC1
CC2
M
SPI
S
POWER
RESET
CC1
CC2
Microchip
UPD350
VBUS_DET
Control I/O
VBUS
(GPIO, DAC,
or I2C)
Fault Indicator
Optional
DC‐DC
Converter
DC In
Load Switch
DS00003412A-page 8
2020 Microchip Technology Inc.
UPD301B/C
2.3.3
BUS-POWERED OR BATTERY POWERED SINK-ONLY APPLICATIONS (UPD301C ONLY)
An example of a bus powered power sink (Sink-Only) application is shown in Figure 2-3. Abus powered Sink-Only appli-
cation derives all power from the upstream VBUS connection and does not have any other power source. The UPD301C
device with dead battery support should be selected for all Sink-Only devices. The dead battery Rp terminations allow
the Sink-Only device to be detected and powered from an attached DFP port when connected in an unpowered state.
Additional notes on Bus-Power or Battery Powered Sink-Only Applications:
• USB data support is optional.
• If USB3 data is supported, a 2:1 multiplexer may be required to handle Type-C cable insertion reversibility. Device
controllers and hubs specifically designed to support USB Type-C may also integrate the reversibility functionality.
• USB Alternate Modes may also be supported in Sink-Only applications.
• DisplayPort support is optional for mobile device ports.
• USB2 signals may be connected directly to the Type-C connector; a multiplexer is not necessary as long as the
USB2 signal layout is carefully managed to keep branches at a minimum.
FIGURE 2-3:
SYSTEM BLOCK DIAGRAM - SINK-ONLY APPLICATION
To
Power Sink
Load Switch
System Power
or
Battery Charger
VBUS
LDO
VBUS_DET
CC1
Misc.
Microchip
UPD301C*
SOC/MCU/
External Logic
Charging
Capability
Indication
(i.e.: GPIO,
DAC, I2C)
CC2
*With Dead Battery
Support Enabled
ORIENTATION
USB2
USB Device /
Hub Upstream
Port
2:1
Data
Mux
USB3
2020 Microchip Technology Inc.
DS00003412A-page 9
UPD301B/C
2.3.4
DUAL ROLE POWER/DATA APPLICATION (5V SOURCE, HIGH VOLTAGE SINK) (UPD301C
ONLY)
An example of a mobile device port is shown in Figure 2-4. In this example a mobile device, such as a notebook, smart-
phone, or tablet, is capable of operating as a USB host (and device if the processor is capable of OTG operation), receiv-
ing a charge, and driving an external video display through a single Type-C connection. A cross-bar switch is shown for
routing DisplayPort Alternate Mode and USB3 data to the connector, allowing port expansion and video display.
Additional notes on Dual Role Power/Data (5V Source, High Voltage Sink) Applications:
• A typical mobile device will limit the power sourcing capability to 5V only in order to preserve battery life. This is
not explicitly required and a mobile device may optionally provide up to the maximum 100W capability if the sys-
tem supports it.
• When the port is operating as a power sink/data UFP, the USB Host / Hub Downstream Port block is not required
to support USB Device / Hub Upstream Port operation.
• A 5V Source Load Switch device must be tolerant of the maximum supported sinking voltage.
• USB3 operation is optional for mobile device ports.
• DisplayPort support is optional for mobile device ports.
• If both USB3 and DisplayPort operation are omitted, the crossbar data switch is not necessary.
• USB2 signals may be connected directly to the Type-C connector; a multiplexer is not necessary as long as the
USB2 signal layout is carefully managed to keep branches to a minimum.
FIGURE 2-4:
SYSTEM BLOCK DIAGRAM - DUAL ROLE POWER/DATA APPLICATION
(5V SOURCE, HIGH VOLTAGE SINK)
5V Source
Switch
5V
To
Power Sink
Load Switch
System Power
or
Battery Charger
VBUS
LDO
VBUS_DET
Misc.
SOC/MCU/
External Logic
Microchip
CC1
CC2
UPD301C*
Charging
Capability
Indication
(i.e.: GPIO,
DAC, I2C)
*With Dead Battery
Support Enabled
ORIENTATION
USB2
USB Host / Hub
Downstream
Port
USB3
X‐Bar
Data
Mux
DisplayPort
Source
DP
DS00003412A-page 10
2020 Microchip Technology Inc.
UPD301B/C
2.3.5
DUAL ROLE POWER/DATA APPLICATION (HIGH VOLTAGE SOURCE, 5V @ 0A SINK)
(UPD301C ONLY)
An example of a PD docking port is shown in Figure 2-5. In this example a battery powered mobile device, such as a
notebook, smart-phone, or tablet may connect to the docking PD port and receive a charge, access the USB device
tree, and drive an external video display through a single Type-C connection. A cross-bar switch is shown for routing
DisplayPort Alternate Mode and USB3 data to the connector, allowing port expansion and video display.
Additional notes on Dual Role Power/Data (High Voltage Source, 5V @ 0A Sink) Applications:
• While a PD docking port may technically resolve into a power sink role, a typical PD dock will not attempt to sink
any power while operating as a power sink. This type of operation may be referred to a “5V @ 0A Sink”.
• When the port is operating as a power sink/data UFP, the USB Device/Hub Upstream Port block is not required to
support USB Host/Hub Downstream Port operation.
• A Power Source Load Switch device is necessary, as the DC-DC converters bulk capacitance must be isolated
from VBUS when the port is operating as a 5V @ 0A Sink.
• USB3 operation is optional for PD docking ports.
• DisplayPort support is optional for PD docking ports.
• If an Alternate Mode such as DisplayPort is supported, a Billboard device must also be included within the system
and be exposed following an Alternate Mode negotiation failure (A Billboard device may optionally be connected
at all times and communicate a successful Alternate Mode connection, but this is optional).
• If both USB3 and DisplayPort operation are omitted, the crossbar data switch is not necessary.
• USB2 signals may be connected directly to the Type-C connector; a multiplexer is not necessary as long as the
USB2 signal layout is carefully managed to keep branches to a minimum.
FIGURE 2-5:
SYSTEM BLOCK DIAGRAM - DUAL ROLE POWER/DATA APPLICATION
(HIGH VOLTAGE SOURCE, 5V @ 0A SINK)
DC‐DC
Converter
Power Source
LoadSwitch
DC In
Fault Indicator
Control I/O
(GPIO, DAC,
or I2C)
VBUS_DET
VBUS
Microchip
UPD301C
CC1
POWER
RESET
CC2
ORIENTATION
USB2
USB Device /
Hub Upstream
Port
USB3
X‐Bar
Data
Mux
BB Control
USB2
To Display Scalar/HDMI
Conversion IC/
DisplayPort MST Hub/
DisplayPort Connector/
etc.
DP
USB Billboard
Device
2020 Microchip Technology Inc.
DS00003412A-page 11
UPD301B/C
2.3.6
2-PORT DUAL ROLE POWER/DATA APPLICATION ‘CHARGE-THROUGH ADAPTER’
(UPD301C ONLY)
An example of a charge through adapter/mobile dock device is shown in Figure 2-6. In this example, the ‘Charger Input
Port’ may pass a high voltage power profile through the system to an attached mobile device. If a charger is not inserted
into the ‘Charger Input Port’. then the mobile device may power the adapter with 5V power.
A cross-bar switch is shown for routing DisplayPort Alternate Mode and USB3 data to the connector, allowing port
expansion and video display.
An LDO is shown connected to a power OR circuit to ensure power to the system is available regardless of which Type-
-C port is supplying power to the system. The LDO should be selected to operate at the maximum supported charge-
through voltage.
FIGURE 2-6:
SYSTEM BLOCK DIAGRAM - 2-PORT DUAL ROLE POWER/DATA APPLICATION
‘CHARGE-THROUGH ADAPTER’
HDMI
Port
DP to
HDMI
HDMI
DP
X‐Bar
Data
Mux
USB3
USB2
VBUS
USB Port
5V Power
Mobile
Device
Port
CC1
CC2
Microchip
UPD301C
VBUS_DET
VBUS
M
POWER
SPI
S
LDO
Load Switch
VBUS
VBUS_DET
Charger
Input
Port
Microchip
UPD350
CC1
CC2
DS00003412A-page 12
2020 Microchip Technology Inc.
UPD301B/C
3.0
3.1
PIN DESCRIPTIONS AND CONFIGURATION
Pin Assignments
The device pin diagram for the UPD301B/C can be seen in Figure 3-1. Table 3-1 provides a UPD301B/C pin assignment
table. The internal bonding diagram (simplified) is shown in Figure 3-2. Pin descriptions are provided in Section 3.2, "Pin
Descriptions".
FIGURE 3-1:
UPD301B/C PIN ASSIGNMENTS (TOP VIEW)
1
30
29
28
27
26
25
24
23
22
21
PA28
CC2
PA15
2
3
SPI_IRQ_N0 (PA14)
VPP18
VCONN_IN
CC1
4
GPIO3
5
VDD12_CORE_OUT
VDD33_REG_IN
SWCLK (PA30)
SWDIO (PA31)
VBUS_DET_IN
PA00
GPIO2
Microchip
UPD301B/C
6
SPI_MOSI (PA11)
SPI_SS0 (PA10)
SPI_CLK (PA09)
SPI_MISO (PA08)
VDD33_ANA_IN
(Top View 40-VQFN)
7
8
9
Thermal slug connects to VSS
10
Note: Exposed pad (VSS) on bottom of package must be connected to ground.
2020 Microchip Technology Inc.
DS00003412A-page 13
UPD301B/C
FIGURE 3-2:
SIMPLIFIED INTERNAL BONDING DIAGRAM
UPD301B/C
29
5
6
VDD12_CORE_OUT
VDDCORE
30
9
1
2
3
4
5
10
11
VDDIN
PA00
PA01
PA00
PA01
VDD33_REG_IN
VDD33_ANA_IN
RESET_N_IN
21
40
VDDANA
RESET
26
12
13
17
18
19
20
PA02
PA03
PA04
PA02
PA03
17
18
19
20
31
32
34
35
PA16
PA17
PA18
PA19
PA16
PA17
PA04
PA05 6
PA05
7
PA06
PA06
PA18/GPO4
PA19/GPIO5
8
PA07
SPI_MOSI_SI (PA07)
21
22
25
27
PA08 11
PA09 12
PA10 13
PA11 14
PA14 15
PA15 16
36
37
39
1
22
23
24
25
29
30
SPI_MISO (PA08)
SPI_CLK (PA09)
PA22/GPIO6
PA23/GPIO7
PA22
PA23
PA27
PA28
PA27/GPIO9
PA28
SPI_SS0 (PA10)
SPI_MOSI (PA11)
SPI_IRQ_N0 (PA14)
PA15
31
32
7
8
PA30
PA31
SWCLK (PA30)
SWDIO (PA31)
ATSAMD20E
18
19
23
24
25
26
27
28
26
27
15
GPIO2
GPIO3
GPIO2
GPIO3
GPO4
SPI_DO 16
SPI_CLK
17
SPI_CS_N 13
SPI_DI
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
21
22
IRQ_N
33
9
RESET_N
RESET_N_COM
VBUS_DET_IN
VBUS_DET 4
38
GPIO8
3
4
2
3
CC1 1
CC1
CC2
2
8
VS
VCONN_IN
CC2
14
3V3_ALW
VSW
VDD33_ALW_IN
9
12
11
20
16
15
VDD33_IO_IN
VDD33IO
VDD18_CAP
VDD18
VDD18_CORE_OUT
28
VPP18
UPD350-B
DS00003412A-page 14
2020 Microchip Technology Inc.
UPD301B/C
TABLE 3-1:
Pin
UPD301B/C PIN ASSIGNMENTS
Pin Name
Bond to SAMD20E
Bond to UPD350-B
1
PA28
CC2
PA28
-
-
2
CC2
3
VCONN_IN
CC1
-
VS
4
-
CC1
5
VDD12_CORE_OUT
VDD33_REG_IN
SWCLK (PA30)
SWDIO (PA31)
VBUS_DET_IN
PA00
VDDCORE
VDDIN
PA30
PA31
-
-
6
-
7
-
8
-
9
VBUS_DET
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
PA00
PA01
PA02
PA03
-
-
PA01
-
PA02
-
PA03
-
VDD33_ALW_IN
VDD18_CORE_OUT
VDD33_IO_IN
PA04
3V3_ALW & VSW
-
VDD18_CAP
-
VDD33IO
PA04
PA05
PA06
PA07
VDDANA
PA08
PA09
PA10
PA11
-
-
-
PA05
PA06
-
SPI_MOSI_SI (PA07)
VDD33_ANA_IN
SPI_MISO (PA08)
SPI_CLK(PA09)
SPI_SS0 (PA10)
SPI_MOSI (PA11)
GPIO2
SPI_DI
-
SPI_DO
SPI_CLK
SPI_CS_N
-
GPIO2
GPIO3
VDD18
IRQ_N
-
GPIO3
-
VPP18
-
SPI_IRQ_N0 (PA14)
PA15
PA14
PA15
PA16
PA17
-
PA16
-
PA17
-
RESET_N_COM
PA18/GPO4 (Note 1)
PA19/GPIO5 (Note 1)
PA22/GPIO6 (Note 1)
PA23/GPIO7 (Note 1)
GPIO8
RESET_N
GPO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
-
PA18
PA19
PA22
PA23
-
PA27/GPIO9 (Note 1)
RESET_N_IN
PA27
RESET
Exposed Pad (VSS) must be connected to ground.
Note 1: This pin is double bonded to the internal SAMD20E and UPD301B/C and should not be simultaneously
driven by both sources under normal use cases.
2020 Microchip Technology Inc.
DS00003412A-page 15
UPD301B/C
3.2
Pin Descriptions
This sections details the functions of the various device signals.
TABLE 3-2:
Name
PIN DESCRIPTIONS
Symbol
Buffer
Type
Description
USB Type-C™
Configuration
Channel 1
CC1
CC2
AIO
AIO
AIO
Configuration Channel (CC) used in the discovery, configu-
ration and management of connections across a USB
Type-C cable. (CC1 in UPD350)
Configuration
Channel 2
Configuration Channel (CC) used in the discovery, configu-
ration and management of connections across a USB
Type-C cable. (CC2 in UPD350)
VBUS
Detection
VBUS_DET_IN
Scaled down version of VBUS input used for VBUS detec-
tion. Tie this signal to VBUS via a resistor divider.
(VBUS_DET in UPD350)
SPI Interface
SPI Clock
SPI_CLK
IS
SPI clock. The maximum supported SPI clock frequency is
8 MHz. (SPI_CLK in UPD350 and PA09 in SAMD20)
SPI Data
Master In /
Slave Out
SPI_MISO
I/O8
SPI data master in, slave out.
(SPI_DO in UPD350 and PA08 in SAMD20)
SPI Data
Master Out /
Slave In
SPI_MOSI
O2
IS
SPI data master out / slave in. This pin must be connected
to SPI_MOSI_SI for proper operation. (PA11 in SAMD20)
SPI Data
Slave In
SPI_MOSI_SI
SPI data slave in. This pin must be connected to SPI_MOSI
for proper operation.
(SPI_DI in UPD350 and PA07 in SAMD20)
SPI Chip
Enable 0
SPI_SS0
IS
I
Active low SPI chip enable input for UPD301B/C.
(SPI_CS_N in UPD350 and PA10 in SAMD20)
SPI Interrupt 0
SPI_IRQ_N0
SPI interrupt indicating request for service from optional
external UPD350.
(IRQ_N in UPD350 and PA14 in SAMD20)
Serial Wire Debug Interface
Serial Wire
Debug Clock
SWCLK
SWDIO
IS
Serial wire debug clock.
(PA30 in SAMD20)
Serial Wire
Debug Data
I/O
Serial wire debug bidirectional data.
(PA31 in SAMD20)
Miscellaneous
System Reset
Input
RESET_N_IN
I
Active low SAMD20 system reset input. This reset is used
for reset of the SAMD20 portion of the UPD301B/C by a
companion MCU. (RESET in SAMD20)
System Reset
Common
RESET_N_COM
IS
Active low UPD350 system reset input. This reset is used
for reset of the UPD350 portion of the UPD301B/C by a
companion MCU. (RESET_N in UPD350)
General Purpose I/Os
I/O Refer to SAMD20E Datasheet for pin function, peripheral
Misc.
PA00, PA01, PA02, PA03,
SAMD20E I/O PA04, PA05, PA06, PA15,
PA16, PA17, PA18, PA19,
detail, and characteristics.
(PAxx in SAMD20)
PA22, PA23, PA27, PA28
Note:
PA18, PA19, PA22, PA23, and PA27 are multi-
plexed with UPD350 GPIOs. Refer to Table 3-1
for more information.
DS00003412A-page 16
2020 Microchip Technology Inc.
UPD301B/C
TABLE 3-2:
Name
PIN DESCRIPTIONS (CONTINUED)
Buffer
Symbol
Type
Description
UPD350 GPIO GPIO2, GPIO3, GPO4,
GPIO5, GPIO6, GPIO7,
I/O
Refer to UPD350 Datasheet for pin function, peripheral
detail, and characteristics.
GPIO8, GPIO9
(GPIOx, GPO4 in UPD350)
Note:
GPO4, GPIO5, GPIO6, GPIO7, and GPIO9 are
multiplexed with SAMD20 GPIOs. Refer to
Table 3-1 for more information.
Power/Ground
+5V
Port Power
Switch Input
VCONN_IN
VDD33_IO_IN
VDD33_ANA_IN
VDD33_ALW_IN
P
P
P
P
+5V VCONN FET power source.
(VS in UPD350)
+3.3V I/O
Power Supply
Input
+3.3V I/O power supply input.
(VDD33IO in UPD350)
+3.3V Analog
Power Supply
Input
+3.3V analog power supply input.
(VDDANA in SAMD20)
+3.3V
Always Supply
Input
+3.3V always supply input. (3V3_ALW & VSW in UPD350)
Note:
This pin must be connect to a 2.2 uF capacitor
to ground.
+3.3V
Regulator
Power Supply
Input
VDD33_REG_IN
P
+3.3V regulator power supply input.
(VDDIN in SAMD20)
+1.8V Core
Voltage Power
Supply Input
VPP18
VDD18_CORE_OUT
VDD12_CORE_OUT
VSS
P
P
P
P
+1.8V core voltage power supply input.
(VDD18 in UPD350)
+1.8V Digital
Core Power
Supply Output
+1.8V digital core power supply output. This signal must be
connected to a 1uF capacitor to ground for proper opera-
tion. (VDD18_CAP in UPD350)
+1.2V
Core Power
Supply Output
+1.2V core power supply output. This signal must be con-
nected to a 1uF capacitor to ground for proper operation.
(VDDCORE in SAMD20)
Ground
Ground pins.
2020 Microchip Technology Inc.
DS00003412A-page 17
UPD301B/C
4.0
FUNCTIONAL DESCRIPTIONS
This section provides functional descriptions of the following:
• Serial Peripheral Interface (SPI)
• Power States
• Cable Plug Orientation and Detection
• Baseband CC Interface (BCI)
• Power Delivery MAC
• Supported Power Delivery (PD) Functionality
4.1
Serial Peripheral Interface (SPI)
The UPD301B/C integrates a SPI master/slave controller which includes the following features:
• • Full-duplex, four-wire interface (SPI_MISO, SPI_MOSI, SPI_SCK, SPI_SS)
• • Single-buffered transmitter, double-buffered receiver
• • Supports all four SPI modes of operation
• • Single data direction operation allows alternate function on SPI_MISO or SPI_MOSI pin
• • Selectable LSB- or MSB-first data transfer
• • Master operation:
- – Serial clock speed, fSCK=1/tSCK(Note 4-1)
- – 8-bit clock generator
• • Slave operation:
- – Serial clock speed, fSCK=1/tSSCK(Note 4-1)
- – Optional 8-bit address match operation
- – Operation in all sleep modes
Note 4-1
For tSCK and tSSCK values, refer to Section 5.6.2, "SPI Timing"
The SPI is a high-speed synchronous data transfer interface which allows high-speed communication between the
device and peripheral devices. The SPI can operate as a master or slave. As a master, the SPI initiates and controls all
data transactions. The SPI is single buffered for transmitting and double buffered for receiving.
When transmitting data, a Data register is loaded with the next character to be transmitted during the current transmis-
sion. When receiving, the data is transferred to the two-level receive buffer, and the receiver is ready for a new character.
The SPI transaction format is shown in Figure 4-1. Each transaction can contain one or more characters. The character
size is configurable, and can be either 8 or 9 bits.
FIGURE 4-1:
SPI TRANSACTION FORMAT
SPI_MOSI/
SPI_MISO
SPI_SS
The SPI master pulls the slave select line (SPI_SS) of the desired slave low to initiate a transaction. The master and
slave prepare data to send via their respective shift registers, and the master generates the serial clock on the SPI_SCK
line.
Data is always shifted from master to slave on the Master Output Slave Input line (SPI_MOSI); data is shifted from slave
to master on the Master Input Slave Output line (SPI_MISO).
Each time character is shifted out from the master, a character will be shifted out from the slave simultaneously. To signal
the end of a transaction, the master will pull the SPI_SS line high.
DS00003412A-page 18
2020 Microchip Technology Inc.
UPD301B/C
4.2
Power States
The device supports the following power states, as defined in their respective sub-sections:
• SLEEP
• HIBERNATE
• STANDBY
• ATTACHED IDLE (FRS Enabled)
• ATTACHED IDLE (FRS Disabled)
• ACTIVE
4.2.1
SLEEP
This is the lowest power state of the device. The SLEEP state is entered via assertion of the PWR_DN pin. Virtually all
of the device is powered off in this mode with minimal circuity in the 3.3V domain to detect deassertion of PWR_DN.
This mode is intended to minimize power consumption when the device is not being used in battery powered applica-
tions. In these applications, a wake up event such as a button press, can cause the host CPU to deassert PWR_DN.
4.2.2
HIBERNATE
In this state, the port is disabled by the USB PD firmware and the PWR_DN pin is low. Attach detection is disabled due
to CC terminations in the high-impedance state.
4.2.3
STANDBY
STANDBY is the lowest power functional state of the device. The majority of the device is powered off in this state. The
internal CC comparator and 20 KHz oscillator are enabled in this state as well as requisite analog components (1.8V
LDO, PORs, Biases, etc).
The CC lines are constantly monitored for an attach condition which shall result in an interrupt assertion to the host. If
an attachment has been made, this state can detect a change in the partner’s advertisement as well as a detach.
STANDBY is the power state that the UPD301B/C device will be in when in USB Type-C™ Unattached.SRC.
4.2.4
ATTACHED IDLE (FRS ENABLED)
In this state, a USB Type-C™ device is connected and the USB PD bus is idle (no USB packets in transit). The CC
signals are constantly being monitored for packet transmission and Fast Role Swap (FRS) signal detection is enabled.
4.2.5
ATTACHED IDLE (FRS DISABLED)
In this state, a USB Type-C™ device is connected and the USB PD bus is idle (no USB packets in transit). The CC
signals are constantly being monitored for packet transmission and Fast Role Swap (FRS) signal detection is disabled.
4.2.6
ACTIVE
This state defines the condition of the device after an attachment occurred. In this state, Power Delivery communication
is supported. This state is also used for any condition in which the 48 MHz Relaxation Oscillator must be enabled, such
as when it is desired to debounce a GPIO within the micro-second range.
When transmitting a Power Delivery packet, an additional 5 mA may be consumed. Additional power consumption
results from enabling the OCS comparator, VBUS comparator and other modules. When VCONN FETs are enabled,
there is an additional 70 mW of power consumption.
This section details the functions that control and monitor the CC pins, monitor the VBUS_DET pin, control the VCONN
FETs, and sample the CFG_SEL pin.
2020 Microchip Technology Inc.
DS00003412A-page 19
UPD301B/C
4.3
Cable Plug Orientation and Detection
4.3.1
CC COMPARATOR
The device integrates a comparator and DAC circuit to implement Type-C attach and detach functions. It supports up
to eight programmable thresholds for attach detection between UFP and DFP. When operating as a UFP, the device
supports detecting changes in the DFP’s advertised thresholds to determine current sourcing capability. The default
nominal values for the thresholds detected by the CC comparators are:
• 0.20 V
• 0.40 V
• 0.66 V
• 0.80 V
• 1.23 V
• 1.60 V
• 2.60 V
• 3.0 V Proprietary Mode
TABLE 4-1:
Parameter
CABLE DETECT SUMMARY
Threshold CSR
Description
Min
Typ
Max
DFP_ACT_DEF
CC_THR0
Detecting an active cable when configured
as DFP and advertising default USB current.
0.20 V
UFP_DFP_DEF
CC_THR0
Detecting DFP attach when configured as
UFP and DFP is advertising default USB
current.
0.20 V
DFP_ACT_1A5
UFP_DFP_1A5
DFP_ACT_3A0
UFP_DFP_3A0
DFP_UFP_DEF
DFP_UFP_1A5
DFP_UFP_3A0
CC_THR1
CC_THR2
CC_THR3
CC_THR4
CC_THR5
CC_THR5
CC_THR6
Detecting an active cable when configured
as DFP and advertising 1.5A.
0.40 V
0.66 V
0.80 V
1.23 V
1.60 V
1.60 V
2.60 V
Detecting DFP attach when configured as
UFP and DFP is advertising 1.5A.
Detecting an active cable when configured
as DFP and advertising 3.0A.
Detecting DFP attach when configured as
UFP and DFP is advertising 3.0A.
Detecting UFP attach when configured as
DFP advertising default USB current.
Detecting UFP attach when configured as
DFP advertising 1.5A.
Detecting UFP attach when configured as
DFP advertising 3.0A.
DS00003412A-page 20
2020 Microchip Technology Inc.
UPD301B/C
The following tables summarizes the expected thresholds to be matched for various configurations.
TABLE 4-2:
DFP CC MATCH SUMMARY
CC
CC
CC
CC
CC
CC
CC
CC
CC State
THR0
THR1
THR2
THR3
THR4
THR5
THR6
THR7
Advertise Default USB Current and
connected to powered cable
0
0
0
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
Advertise 1.5 A and connected to
powered cable
0
0
1
0
0
1
0
0
0
Advertise 3.0 A and connected to
powered cable
Advertise Default USB Current and
connected to UFP
Advertise 1.5 A and connected to
UFP
Advertise 3.0 A and connected to
UFP
Advertise Default USB Current and
no connect (vOpen)
Advertise 1.5 A and no connect
(vOpen)
Advertise 3.0 A and no connect
(vOpen)
Proprietary Mode and no connect
(vOpen)
TABLE 4-3:
UFP CC MATCH SUMMARY
CC
CC_
CC
CC
CC
CC
CC
CC
CC State
THR0
THR1
THR2
THR3
THR4
THR5
THR6
THR7
Powered cable detected.
No Connect (SNK.Open)
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
DFP Connected and advertising
default USB current
DFP Connected and advertising 1.5
A
1
1
1
0
0
0
1
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
DFP Connected and advertising 3.0
A
DFP Connected and advertising pro-
prietary current
2020 Microchip Technology Inc.
DS00003412A-page 21
UPD301B/C
4.3.2
DFP OPERATION
The device implements current sources to advertise current charging capabilities on both CC pins when operating as a
DFP.
When a UFP connection is established, the current driven across the CC pins creates a voltage across the UFP’s Rd
pull-down that can be detected by the integrated CC comparator. The voltages monitored are summarized in Table 4-
4. When connected to an active cable, an alternative pull-down (Ra) appears on the CC pin.
The DFP also integrates two 5V FETs for implementing the VCONN function. This is further discussed in Section 4.3.9,
"VCONN Operation".
TABLE 4-4:
SOURCE DETECTION
Connection State
CC1
CC2
CC Comparator State
VBUS VCONN
Open Open Nothing Attached
Rd Open UFP Attached
Open Rd UFP Attached
Ra Open Powered Cable, No UFP attached
Monitor both CC pins for attach
Monitor CC1 for detach
Off
On
On
Off
Off
Off
Off
Off
Monitor CC2 for detach
Monitor CC2 for UFP attach.
Monitor CC1 for cable detach.
Open Ra
Powered Cable, No UFP attached
Powered Cable, UFP attached
Powered Cable, UFP attached
Monitor CC1 for UFP attach.
Monitor CC2 for cable detach.
Off
On
On
Off
On
On
Ra
Rd
Rd
Ra
Monitor CC2 for UFP detach.
CC1 is not monitored for detach.
Monitor CC1 for UFP detach.
CC2 is not monitored for detach.
Rd
Ra
Rd
Ra
Debug accessory mode attached
Audio accessory mode attached.
Monitor both CC pins for detach
Monitor both CC pins for detach
Off
Off
Off
Off
4.3.3
RP CURRENT SOURCES
In order to advertise the current charging capabilities of the device via the integrated port power controller or external
power circuit, Rp current sources are used. The current source can be selected by software. Table 4-5 summarizes the
values supported by the current sources in regards to the programmed value.
TABLE 4-5:
RP CURRENT SOURCES
Current source
(1.7V to 5.5V)
DFP Advertisement
RPx Value
Disabled
00b
01b
10b
11b
Default USB Power
80 uA +/-20%
180 uA +/-8%
330 uA +/-8%
1.5A @ 5V
3.0A @ 5V
The current source coupled with the CC pins for RP advertisement is also used for sampling the CFG_SEL pin. When
the CFG_SEL pin is sampled, current is steered away from the CC pins and no RP value is advertised.
4.3.4
UFP OPERATION
When operating as a UFP, the device applies an Rd pull-down on both CC lines and waits for a DFP connection from
the assertion of VBUS. The CC comparator is used to determine the advertised current charger capabilities supported
by the DFP.
4.3.5
DRP OPERATION (LEGACY)
In this configuration, software utilizes the device to alternate between a Source and Sink advertisement with an interval
of tDRP per the USB Type-C™ Specification.
DS00003412A-page 22
2020 Microchip Technology Inc.
UPD301B/C
4.3.6
DRP OFFLOAD
DRP offload enables the device to manage the DRP toggle. This is beneficial as it allows the host CPU to remain in a
low power state until a connection is detected.
DRP offload toggles between Source and Sink advertisement by alternating between enabling Rp current sources and
Rd pull-downs for a period of tDRP (DRP Time Register). The duty cycle between Source and Sink advertisement is
determined by the DRP Duty Cycle Register. The DRP Time Register may be written by firmware or generated auto-
matically via a pseudo random number generator. The latter approach should be used to reduce the probability of col-
lisions when connecting. It is selectable whether the DRP cycle shall first advertise UFP or DFP.
A connection is detected after a successful debounce for a period defined by the Match Debounce Register. VBUS is
checked to be below vSafe0v for the DFP case. This results in IRQ_N assertion and automatic disablement of the DRP
toggle. Firmware must further debounces for the period tPDDebounce before determining if a valid match is present. If
a match has not occurred, firmware will enable DRP again.
A pseudo random number generator, implemented via a LFSR, is utilized to generate the DRP period. The LFSR oper-
ates off of the 20 KHz clock and updates every 100 us when enabled.
Hardware limits the total DRP period to be between 50 ms and 100 ms in order to comply with the USB Type-C™ spec-
ification.
4.3.7
COLLISION AVOIDANCE
An alternative mode of operation is required to enable the CC detection circuit to facilitate software implementation of
collision detection which was incorporated into version 3.0 of the USB PD Specification.
In order to avoid message collisions due to asynchronous Messaging (AMS) sent from the Sink, the Source sets Rp to
SinkTxOk (3A@5V) to indicate to the Sink that it is OK to initiate an AMS. When the Source wishes to initiate an AMS
it sets Rp to SinkTxNG (1.5A@5V). When the Sink detects that Rp is set to SinkTxOk it may initiate an AMS. When the
Sink detects that Rp is set to SinkTxNG it shall not initiate an AMS and shall only send Messages that are part of an
AMS the Source has initiated.
When operating as a Sink, a mechanism is required for quickly determining whether the Source is advertising SinkTxNG
or SinkTxOK on Rp.
A collision avoidance mechanism exists to enable software to instruct the device to sample only a single threshold on
a single CC pin. This results in a cycle through both thresholds taking only 100 us, making it easier for software to meet
the timing constraints mandated by SinkTxOk in the specification.
4.3.8
FAST ROLE SWAP (FRS)
This feature is used to detect when a partner source has lost power. Upon detection of FRS signaling, the “Old Sink”
transitions to be a Source and begins supplying VBUS.
When operating as a Sink, the FRS mode of operation enables detection of FRS signaling. Detection results in IRQ_N
assertion and this event may also be mapped as a PIO override source. When operating as a Source, upon detection
of loss of power, the device will transmit FRS signaling. This is initiated by either assertion of a selected PIO or a CSR
write.
The following FRS related features are supported:
• Ability to detect reception of FRS signaling
• High bandwidth and current boost mode for CC comparator to increase sampling frequency
• Interrupt, and PIO, assertion upon FRS detection
• PIO override support for FRS detection as a source
• Ability to initiate FRS signaling via GPIO assertion or register write.
• Control 5 Ohm (Rsw) pull-down resistor
2020 Microchip Technology Inc.
DS00003412A-page 23
UPD301B/C
4.3.8.1
FRS Sink Operation
When operating as a Sink, the device is configured to detect FRS signaling by setting FRS Detect Enable (FRS_DE-
T_EN) in FRS Control Register. The CC detection logic is programmed to detect three thresholds (SinkTxOK, Sink-
TXNG, FRSWAP) and samples each threshold in round robin fashion. The sampling rate is determined by CC Sample
Clock Register.
When a match is detected on FRSWAP threshold, the CC detection logic will “park” at this threshold and continue mon-
itoring the output of the comparator. While “parked” the output of the CC comparator will be sampled at an increased
rate of 12 MHz. This higher sampling rate will prevent PD messages from inadvertently looking like FRS signaling which
will happen on occasion when the sampling rate is similar or slower than the ~270 kbps rate of PD messages.
It will continue debouncing for the amount of time specified in FRS CC Debounce Register. The FRSWAP threshold is
indicated by FRS Threshold Select Register.
If the debounce is successful, then the FRS_RCV_STS interrupt is asserted and the CC detection logic resumes sam-
pling all enabled thresholds. If the FRS debounce fails, the CC detection logic resumes sampling all enabled thresholds.
In this mode of operation the CC Comparator operates at a faster rate in order to minimize the FRS detection latency.
This is enabled by placing this the comparator into a high bandwidth mode.
After detecting the FRS signaling, the “old Sink” must start supplying vSafe5V at USB Type-C™ current VBUS no later
than tSrcFRSwap (150 us) after VBUS has dropped below vSafe5V. This must be accomplished via circuitry external
to the device.
Note:
Note:
The upper threshold used for vSafe5V should be used for determining when VBUS has dropped below
vSafe5v to help meet tSrcFRSwap requirement.
Matching of a VBUS threshold may be selected as a source to a PIO override. Additionally, VBUS threshold
match ANDed with FRS signal detect may also be used as a PIO override source.
4.3.8.2
FRS Source Operation
The initial Source shall signal a FRS request by driving the CC pin to ground with a resistance of less than 5 Ohms for
a period defined by FRS Transmission Length Register. The FRS request signaling is initiated by either a CSR write or
GPIO assertion.
The former case is implemented by setting the FRS Request (FRS_REQ_EN) bit in FRS Control Register. This bit self
clears after the FRS request is transmitted. For the latter case, the PIO is selected by the FRS Request PIO
(FRS_REQ_PIO) field in FRS Control Register.
Transmission of FRS signaling will take precedence over PD MAC TX communication. The FRS PD resistor is enabled
in tandem on the CC pin determined by FRS CC Select (FRS_CC_SEL) in FRS Control Register. This configuration
remains until FRS transmission has completed.
4.3.8.3
Dead Battery (UPD301C Only)
The UPD301C device includes two variations of the Rd resistor implementation: Rd (Dead Battery) and Rd (Trimmed).
The CC pins are configured to present either Hi-Z or an untrimmed Rd pull-down resistance when connected to a DFP
advertising a pull-up resistance.
Figure 4-2 illustrates the configuration for supporting dead battery cases. The UFP pull-up activates the FET in series
with RD_DB and enables the untrimmed dead battery pull-down.
DS00003412A-page 24
2020 Microchip Technology Inc.
UPD301B/C
FIGURE 4-2:
CC RD (DEAD BATTERY)
UFP
DFP
Rp
CCx
RD_TRIM
5.1 KW
50 MW
RD_DB
5.1 KW
Hi-Z
EN_RD_TRIM
Hi-Z
EN_RD_DB_N
Figure 4-3 illustrates operation after the UFP has been powered over VBUS by the DFP. After the device is powered,
EN_RD_DB asserts by default to keep the RD_DB pull-down activated.
Upon powering the host CPU, software simultaneously deasserts EN_RD_DB and asserts EN_RD_TRIM. Going for-
ward the device presents RD_TRIM.
FIGURE 4-3:
CC RD (TRIM)
UFP
DFP
Rp
CCx
RD_TRIM
5.1 KW
50 MW
RD_DB
5.1 KW
EN_RD_TRIM
EN_RD_DB_N
The Rd resistor presented, trimmed or untrimmed, is controlled by the CC1 and CC2 Pull-Down Values in the CC Control
Register (CC_CTL). These register fields serve the basis for the EN_RD_TRIM and EN_RD_DB_N control signals
depicted.
2020 Microchip Technology Inc.
DS00003412A-page 25
UPD301B/C
4.3.9
VCONN OPERATION
VCONN is a 5V supply that is used to power circuitry in the USB Type-C™ plug, which is required to implement Elec-
tronically Marked Cables. By default, the DFP always sources VCONN when connected to an active cable. However,
this may be changed by software.
The VCONN FETs are enabled/disabled by software via the VCONN1 Control and VCONN2 Control control bits in the
CC Control Register (CC_CTL).
APPLICATION NOTE: It is not envisioned to ever enable both FETs simultaneously.
VCONN is monitored for an over current condition via an internal monitoring circuit. A VCONN over current condition is
recognized when the event persists for a time longer than specified.When an over-current VCONN event is detected,
an interrupt asserts. The device may be configured to automatically disable the VCONN FET upon detection of a CC1/
CC2 Back-Drive Error or VCONN Discharge Error. In the event of the detection of a debounced over-current VCONN
event, the enabled VCONN FET will be disabled.
4.3.10
VBUS DETECTION
The device implements a comparator for determining when VBUS is within a programmed range, vSafe5V, or vSafe0v.
VBUS is divided down externally via a 1:9 resistor divider to generate VBUS_DET_IN. VBUS_DET_IN is compared with
an 8-bit threshold generated by an integrated DAC. The comparator is also shared by the CFG_SEL pin which is sam-
pled automatically after a system reset.
Figure 4-4 illustrates the VBUS_DET_IN circuit. In a typical use case, VBUS_DET_IN thresholds are programmed to
track the following voltage ranges as defined in Table 4-5.
Note:
Table 4-5 illustrates the values of VBUS_DET_IN utilizing +/-1% accurate resistors where R1 is 10K Ohms
and R2 is 90 kOhms.
FIGURE 4-4:
VBUS_DET_IN COMPARATOR
VBUS
15 uA
ZTC
R2
VBUS_DET_IN
VBUS_MATCH
10-bits
DAC
R3
R1
VBUS
Threshold
Generation
Bandgap
Reference
20 KHz Clock
For a DFP, the VBUS comparator is useful to detect when VBUS is within the desired range per PD negotiations. This
is the case when VBUS is generated by a source external to the device.
For a UFP, the VBUS comparator is required to determine when a DFP is attached or detached. It may also use the
comparator to determine when VBUS is within a new voltage range negotiated via PD.
If supported, the ranges 8V, 12V and 20V may be programmed in VBUS Threshold 2 and VBUS Threshold 3 registers.
Likewise 5V range, vSafe5v, can be programmed in VBUS Threshold 0 and VBUS Threshold 1 registers.
The threshold for vSafe0V is programmable.
VBUS_DET_IN monitoring logic operates off of the 20 KHz oscillator which cycles through each threshold. Including
vSafe0v, a total of five values are compared.
DS00003412A-page 26
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UPD301B/C
The VBUS Match Register (VBUS_MATCH) indicates when the value on VBUS_DET_IN is higher than the correspond-
ing programmed threshold and can therefore be used to determine if VBUS is in the desired range.
A change in the state of the VBUS match may trigger assertion of the IRQ_N pin if appropriately configured.
4.4
Baseband CC Interface (BCI)
The device integrates a Baseband CC Interface (BCI) to facilitate USB Power Delivery communication. This module
bridges between the PD MAC/BMC and the analog front end. Baseband communication is initiated by the PD MAC,
which interfaces to the BCI. The BCI implements the digital functions required to control TX baseband components.
4.4.1
BASEBAND TX DATA-FLOW
The key responsibility of the BCI is to generate the wave form required for baseband communication. To this end, the
BMC has a group of eight registers that define the Lo-Hi and Hi-Lo transitions for the generated BMC signal.
When instructed to transition from Lo-Hi, the BCI steps through all BB TX Rise Registers. Likewise when instructed to
transition from Hi-Lo, the BCI steps through all BB TX Fall Registers
APPLICATION NOTE: The user may replicate values if it is desired to use less than twelve unique values for this
purpose.
4.4.2
BASEBAND RX DATA-FLOW
Baseband RX data is received by the BCI from the RX analog front end where it is compared to a threshold programmed
by software. The CC RX DAC Value defines the trip point used for reception of baseband data. The field shall be pro-
grammed to be 175 mV below the RX Eye center, as defined in the PD Specification for the mode in which the device
is operating (Sourcing Power, Sinking Power, Power Neutral).
4.5
Power Delivery MAC
The PD MAC implements certain features of the protocol layer and physical layer of the Universal Serial Bus Power
Delivery Specification. On one end the PD MAC interfaces to the software implementing the bulk of protocol and higher
level layers and on the other end it interfaces to a BMC encoder / decoder module.
In addition to the normal TX and RX functions, the PD MAC implements the test mode logic defined in the USB PD
specification (BIST).
The PD MAC supports the following features:
• Automatic TX Mode for packet framing and CRC32 insertion.
• Raw TX Mode for bit level packet control.
• Automatic GoodCRC response to received messages.
• Automatic BIST Error Count Message in BIST RX Mode.
• GoodCRCTimer implementation.
• Automatic retries with programmable retry count.
• Redundant receive packets automatically dropped in auto response mode.
• 74 byte TX queue.
• 128 byte RX queue.
• Programmable TX Bit-time. Allows for changing operating frequency.
• Programmable preamble length.
• BIST TX and RX logic.
• Programmable TX and RX queue modes - buffer mode and FIFO mode.
• CRC32 generator for TX.
• CRC32 calculator and comparator for RX.
2020 Microchip Technology Inc.
DS00003412A-page 27
UPD301B/C
4.5.1
PD MAC TRANSMITTER
The PD MAC transmitter is comprised of three major blocks:
• TX Queue:
The TX Queue is where software loads the message to be transmitted.
• TX Control:
The TX Control implements the necessary control logic. It is responsible for reading the data from the TX queue
and based on the data processing mode (automatic or raw), processing the data to make it suitable (nibbles with
control information) for use by the TX Comm. It is also responsible for generating packet framing and terminating
the packet in automatic mode, and generating messages for automatic response (GoodCRC and BIST Error
Count). TX Control also handles the selection of the SOP type that is to be transmitted.
• TX Comm:
The TX Comm is comprised of a TX CRC generator, a 4b5b encoder, serializer, preamble generator, and TX bit
timer. It takes the nibble data, computes and inserts the CRC, 5b encodes, and generates the baseband serial
data. Preamble insertion is also performed by this logic.
4.5.2
PD MAC RECEIVER
The PD MAC receiver is comprised of three major blocks:
• RX Queue:
The RX Queue is where software reads the received messages.
• RX Control:
The RX Control implements the necessary control logic. It is responsible for validating the received packet, updat-
ing the RX Queue status, and triggering automatic responses, if required.
• RX Comm:
The RX Comm is comprised of the Clock and Data Recovery (CDR), RX DES (de-serializer) (serial-to-parallel
converter, 4b5b decoder, and framing detector), RX CRC32 (CRC calculator, receive timer), and other logic to
detect valid packet reception.
4.5.3
PD MAC BIST
The PD MAC incorporates BIST functions as defined in the USB PD Specification. It is comprised of a TX and RX block.
The BIST TX block contains a PRBS (Pseudo Random Binary Sequence) generator, BIST pattern generation logic, and
its own bit-timing logic. The SOP type used by TX BIST Test Frames is a 20-bit static vector which is created by multi-
plexing between the five SOP ordered sets based on a register setting. The resultant 20-bit vector is simply bit selected
when the packet is transmitted.
The BIST RX block contains a PRBS generator and bit error detection logic. BIST RX is used only during the BIST
Receiver Test.
4.6
Supported Power Delivery (PD) Functionality
4.6.1
SUPPORTED PD MESSAGES
The UPD301B/C is capable of supporting the USB PD Control messages defined within the.USB Power Delivery 3.0
Specification. The complete list of supported messages depends on the release version of the USB Power Delivery Soft-
ware Framework (PSF). The minimum set of supported features are:
• GoodCRC
• Accept
• Reject
• Ping
• PS_RDY
• Get_Source_Cap (Sink Role only)
• Get_Sink_Cap (Source Role only)
• VCONN_Swap
• Wait
• Soft_Reset
DS00003412A-page 28
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UPD301B/C
The following USB PD Data messages are supported:
• Source_Capabilities (Source Role only)
• Request
• BIST
• Sink_Capabilities (Sink Role only)
The following USB PD Extended messages are supported:
• Firmware_Update_Request
• Firmware_Update_Response
The following USB PD Control messages can also be supported UPD301B/C. Check the release notes of the latest PSF
release for the most up-to-date list of supported messages. Support to specific messages may also be added by mod-
ification of the PDF source code.
• GotoMin
• DR_Swap
• PR_Swap
• Get_Source_Cap_Extended
• Get_Status
• FR_Swap
• Get_PPS_Status
• Get_Country_Codes
The following USB PD Data messages are not supported:
• Battery_Status
• Alert
• Get_Country_Info
• Vendor_Defined
The following USB PD Extended messages are not supported:
• Source_Capabilities_Extended
• Status
• Get_Battery_Cap
• Get_Battery_Status
• Battery_Capabilities
• Manufacturer_Info
• Security_Request
• Security_Response
• PPS_Status
• Country_Info
• Country_Codes
4.6.2
SOURCE POWER DELIVERY OBJECTS (PDOS)
The PDOs defined in the USB PD Specification Section 10.2.2 are configurable within the PSF configuration. These are
the PDOs returned in the PD Source_Capabilities message and correspond to the capabilities of the Source power sup-
ply. Augmented PDOs (APDOs) are also supported for enabling Programmable Power Supply (PPS) operation.
4.6.3
SINK POWER DELIVERY OBJECTS (PDOS)
The PDOs defined in the USB PD Specification Section 10.2.2 are configurable within the PSF configuration. These are
the PDOs returned in the PD Sink_Capabilities message and correspond to the requirements of the Sink with respect
to Source capabilities. Note that the PDOs defined in the USB Power Delivery Specification Section 10.2.2 are defined
for Sources, but correspond to the Source PDOs the Sink is able to operate with.
2020 Microchip Technology Inc.
DS00003412A-page 29
UPD301B/C
5.0
5.1
OPERATIONAL CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage (VCONN_IN) (Note 5-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3 V to +6.0 V
Supply Voltage (VDD33_ALW_IN, VDD33_IO_IN) (Note 5-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to +6.0 V
Supply Voltage (VDD33_REG_IN, VDD33_ANA_IN) (Note 5-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to +3.8 V
Supply Voltage (VPP18) (Note 5-1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to +7.75 V
Pin voltage with respect to ground (Note 5-2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VSS-0.6 V to VDD33_REG_IN+0.6 V
Pin voltage with respect to ground (VBUS_DET_IN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to +3.96 V
Pin voltage with respect to ground
(CC1, CC2, SPI_MOSI_SI, EN_VBUS, RESET_N_COM, VBUS_DIS, I2C_ADDR_SEL) . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to +6.0 V
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to +150oC
Lead Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Refer to JEDEC Spec. J-STD-020
HBM ESD Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+/-2 kV
Note 5-1
When powering this device from laboratory or system power supplies, it is important that the absolute
maximum ratings not be exceeded or device failure can result. Some power supplies exhibit voltage
spikes on their outputs when AC power is switched on or off. In addition, voltage transients on the
AC power line may appear on the DC output. If this possibility exists, it is suggested to use a clamp
circuit.
Note 5-2
This rating does not apply to the following pins: VBUS_DET_IN, CC1, CC2, SPI_MOSI_SI, EN_VBUS,
RESET_N_IN, VBUS_DIS
*Stresses exceeding those listed in this section could cause permanent damage to the device. This is a stress rating
only. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Functional
operation of the device at any condition exceeding those indicated in Section 5.2, "Operating Conditions**", Section 5.5,
"DC Characteristics", or any other applicable section of this specification is not implied.
5.2
Operating Conditions**
Supply Voltage (VCONN_IN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +4.75 V to +5.25 V
Supply Voltage (VDD33_ALW_IN, VDD33_IO_IN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.97 V to +3.63 V
Supply Voltage (VDD33_REG_IN, VDD33_ANA_IN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.97 V to +3.63 V
Supply Voltage (VPP18) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1.62 V to +1.98 V
Pin voltage with respect to ground (Note 5-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to +2.00 V
Positive pin voltage with respect to ground (VBUS_DET_IN) . . . . . . . . . . . . VDD33_IO_IN-0.3 V to VDD33_IO_IN+0.3 V
Negative pin voltage with respect to ground (VBUS_DET_IN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.33 V to -0.27 V
Positive pin voltage with respect to ground
(CC1, CC2, SPI_MOSI_SI, EN_VBUS, RESET_N_COM, VBUS_DIS, I2C_ADDR_SEL) . . . . . . . . . . . . . . . . . . . . . . . . +2.97 V to +3.63 V
Negative pin voltage with respect to ground
(CC1, CC2, SPI_MOSI_SI, EN_VBUS, RESET_N_COM, VBUS_DIS, I2C_ADDR_SEL) . . . . . . . . . . . . . . . . . . . . . . . . . -0.33 V to -0.27 V
Power Supply Rise Time Max (TRT) (VDD33_IO_IN) (Figure 5-1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100ms
Power Supply Rise Rate Max (VDD33_ANA_IN, VDD33_REG_IN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.1 V/µs
Ambient Operating Temperature in Still Air (TA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Note 5-4
Note 5-3
Note 5-4
This rating does not apply to the following pins: VBUS_DET_IN, CC1, CC2, SPI_MOSI_SI, EN_VBUS,
RESET_N_COM, VBUS_DIS
0oC to +70oC for commercial version, -40oC to +85oC for industrial version.
**Proper operation of the device is assured only within the ranges specified in this section.
DS00003412A-page 30
2020 Microchip Technology Inc.
UPD301B/C
FIGURE 5-1:
SUPPLY RISE TIME MODEL
Voltage
tRT
3.3V
100%
VDD33_IO_IN
90%
10%
VSS
t90%
Time
t10%
5.3
Package Thermal Specifications
TABLE 5-1:
PACKAGE THERMAL PARAMETERS
Parameter
Symbol
°C/W
Thermal Resistance Junction to Ambient (@ 0 air flow)
Thermal Resistance Junction to Top of Case
JA
JC
JB
JT
36.6
9.2
Thermal Resistance Junction to Board
15.7
0.2
Thermal Resistance Junction to Bottom of Case (@ 0 air flow)
Note:
Thermal parameters are measured or estimated for devices in a multi-layer 2S2P PCB per JESDN51.
TABLE 5-2:
POWER DISSIPATION
Parameter
Symbol
Max
Units
Power Dissipation
Pdis
214
mW
Note:
This is the worst-case power dissipation as a consequence of maximum loading (before current-limiting
protections take effect) upon the VCONN power switch, 3.3V power-ORing switch, analog blocks, and core
digital logic.
2020 Microchip Technology Inc.
DS00003412A-page 31
UPD301B/C
5.4
Current Consumption
TABLE 5-3:
TYPICAL DEVICE CURRENT CONSUMPTION
3.3V Supply Current
Max
Power State
Typical
Units
RESET
1.27
-
mA
mA
mA
mA
STANDBY (source)
7.49
11.40
-
-
-
ATTACHED IDLE (source)
ACTIVE (with PD packet transmitting)
23.84
Note 1: This table details the power consumption of the UPD301B/C device as measured during various modes
of operation for a single port Source-Only implementation (i.e.: loading a PSF Source-only configuration
and programming with default settings). The power consumption may vary significantly depending on the
utilization SAMD20 MCU to handle any additional custom system-specific functions. Refer to the respec-
tive SAMD20E and UPD350 datasheets for more details on the power consumption of these two devices
under certain specific usage scenarios. Also refer to Section 4.2, "Power States" for additional information.
Power dissipation is determined by temperature, supply voltage, and external source/sink requirements.
Maximum values represent very short bursts of activity over a small amount of time. Typical values repre-
sent averaged current consumption over time.
2: STANDBY is equivalent to USB Type-C™ specification’s Unattached.SRC
3: Currents measured with all 3.3V rails tied together.
DS00003412A-page 32
2020 Microchip Technology Inc.
UPD301B/C
5.5
DC Characteristics
TABLE 5-4:
DC ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Min
Typ
Max
Units
Notes
I Type Input Buffer
Low Input Level
High Input Level
0.3*VDD33_REG_IN
VIL
VIH
V
V
0.55*VDD33_REG_IN
-1
1
Input Leakage
ILEAK
±0.015
±0.015
µA
IS_1 Type Input Buffer
0.3*VDD33_REG_IN
Low Input Level
High Input Level
VIL
VIH
IIH
V
V
0.55*VDD33_REG_IN
-1
1
Input Leakage
µA
IS_2 Type Input Buffer
Low Input Level
VILI
VIHI
-0.3
2.0
0.8
3.6
1.8
1.8
200
V
V
High Input Level
Negative-Going Threshold
Positive-Going Threshold
Schmitt Trigger Hysteresis
VILT
VIHT
VHYS
1.21
1.31
100
1.33
1.58
133
V
Schmitt trigger
Schmitt trigger
V
mV
(VIHT - VILT
)
Input Leakage
(VIN = VSS or VDD33_IO_IN)
IIH
-10
10
3
µA
pF
Note 5-5
Input Capacitance
CIN
O2 Type Output Buffer
Low Output Level
VOL
VOH
0.1*VDD33_REG_IN 0.2*VDD33_REG_IN
0.8*VDD33_REG_IN 0.9*VDD33_REG_IN
V
V
IOL = -2 mA
IOH = 2 mA
High Output Level
OD2 Type Output Buffer
0.1*VDD33_REG_IN 0.2*VDD33_REG_IN
Low Output Level
VOL
V
IOL = -2 mA
O8_1 Type Output Buffer
Low Output Level
VOL
VOH
0.1*VDD33_REG_IN 0.2*VDD33_REG_IN
0.8*VDD33_REG_IN 0.9*VDD33_REG_IN
V
V
IOL = -8 mA
IOH = 8 mA
High Output Level
O8_2 Type Output Buffer
Low Output Level
High Output Level
VOL
VOH
0.4
V
V
IOL = -8 mA
IOH = 8 mA
VDD33_IO_IN - 0.4
Note 5-5
This specification applies to all inputs and tri-stated bi-directional pins. Internal pull-down and pull-up
resistors add +/- 50 µA per-pin (typical).
2020 Microchip Technology Inc.
DS00003412A-page 33
UPD301B/C
TABLE 5-5:
VOLTAGE REGULATOR OPERATING RANGES
Pin Name
Parameter
Min
Typ
Max
Units
VDD18_CORE_OUT
VDD12_CORE_OUT
DC uncalibrated output voltage
DC calibrated output voltage
1.62
1.10
1.80
1.23
1.91
1.30
V
V
TABLE 5-6:
VCONN SOURCE DC PARAMETERS
Parameter
Symbol
Min
Typ
600
270
Max
Units
mA
Notes
ILIM
ILIM_VCONN
RON_VCONN
VCONN_IN=5V
On Resistance
m
5.6
AC Characteristics and Timing
This section details the various AC timing specifications of the device.
5.6.1
RESET_N TIMING
Figure 5-2 illustrates the RESET_N timing requirements. Assertion of RESET_N is not a requirement. However, if used,
it must be asserted for the minimum period specified
FIGURE 5-2:
RESET_N TIMING
trstia
RESET_N
TABLE 5-7:
Symbol
trstia
RESET_N TIMING VALUES
Description
Min
Typ
Max
Units
RESET_N input assertion time
1
s
DS00003412A-page 34
2020 Microchip Technology Inc.
UPD301B/C
5.6.2
SPI TIMING
Figure 5-3 and Figure 5-4 illustrate the SPI master and slave timing requirements, respectively. Refer to Section 4.1,
"Serial Peripheral Interface (SPI)" for additional information.
FIGURE 5-3:
SPI MASTER TIMING
SPI_SS
SPI_CLK
(CPOL = 0)
SPI_CLK
(CPOL = 1)
SPI_MISO
(Data Input)
SPI_MOSI
(Data Output)
FIGURE 5-4:
SPI SLAVE TIMING
SPI_SS
SPI_CLK
(CPOL = 0)
SPI_CLK
(CPOL = 1)
SPI_MOSI
(Data Input)
SPI_MISO
(Data Output)
2020 Microchip Technology Inc.
DS00003412A-page 35
UPD301B/C
TABLE 5-8:
Symbol
SPI TIMING VALUES
Description
SPI_CLK period (Master)
Min
Typ
Max
Units
tSCK
tSCKW
tSCKR
tSCKF
tMIS
84
SPI_CLK high/low width (Master)
SPI_CLK rise time (Master)
0.5*tSCK
7
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SPI_CLK fall time (Master)
9.5
SPI_MISO setup to SPI_CLK (Master)
SPI_MISO hold after SPI_CLK (Master)
SPI_MOSI setup to SPI_CLK (Master)
SPI_MOSI hold after SPI_CLK (Master)
SPI_CLK period (Slave)
29
tMIH
8
tSCK/2 - 16
16
tMOS
tMOH
tSSCK
tSSCKW
tSSCKR
tSSCKF
tSIS
1*tCLK_APB
0.5*tSSCK
SPI_CLK high/low width (Slave)
SPI_CLK rise time (Slave)
7
SPI_CLK fall time (Slave)
9.5
SPI_MOSI setup to SPI_CLK (Slave)
SPI_MOSI hold after SPI_CLK (Slave)
SPI_SS setup to SPI_CLK (Slave, PRELOADEN=1)
tSSCK/2-19
tSSCK/2-5
tSIH
tSSS
2*tCLK_APB
+ tSOS
SPI_SS setup to SPI_CLK (Slave, PRELOADEN=0)
SPI_SS hold after SPI_CLK (Slave)
tSOS+7
tSIH-4
ns
ns
ns
ns
ns
ns
tSSH
tSOS
SPI_MISO setup to SPI_CLK (Slave)
tSSCK/2-20
tSOH
SPI_MISO hold after SPI_CLK (Slave)
SPI_MISO setup after SPI_SS low (Slave)
SPI_MISO setup after SPI_SS high (Slave)
20
16
11
tSOSS
tSOSH
DS00003412A-page 36
2020 Microchip Technology Inc.
UPD301B/C
6.0
PACKAGE INFORMATION
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging.
FIGURE 6-1:
PACKAGE MARKING INFORMATION
40-VQFN
UPD301mi
e
3
VRnnn
YYWWNNN
Legend:
m
Device version (“B” or “C”)
i
V
R
Temperature range designator (Blank = commercial, i = industrial/automotive)
Automotive (blank for non-automotive versions)
Functional revision
nnn
YY
WW
NN
Internal code
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
e
3
Pb-free JEDEC designator for Matte Tin (Sn)
e
3
*
This package is Pb-free. The Pb-free JEDEC designator (
can be found on the outer packaging for this package.
)
FIGURE 6-2:
TAPE & REEL DEVICE ORIENTATION
DIRECTION OF UNREELING
2020 Microchip Technology Inc.
DS00003412A-page 37
UPD301B/C
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging.
FIGURE 6-3:
40-VQFN PACKAGE (DRAWING)
ꢀꢁꢂ/HDGꢃ9HU\ꢃ7KLQꢃ3ODVWLFꢃ4XDGꢃ)ODWꢄꢃ1Rꢃ/HDGꢃ3DFNDJHꢃꢅ.<;ꢆꢃꢂꢃꢇ[ꢇꢃPPꢃ%RG\ꢃ>94)1@
:LWKꢃꢀꢈꢇ[ꢀꢈꢇꢃPPꢃ([SRVHGꢃ3DG
'
$
%
(
127(ꢅꢂ
1
ꢂ
ꢇ
ꢄ'$780ꢅ%ꢆ
ꢄ'$780ꢅ$ꢆ
ꢇ;
ꢀꢁꢂꢀ &
ꢇ;
ꢀꢁꢂꢀ &
723ꢅ9,(:
$ꢂ
ꢀꢁꢂꢀ &
&
$
6($7,1*
3/$1(
ꢉꢀ;
ꢄ$ꢌꢆ
ꢀꢁꢀꢈ &
6,'(ꢅ9,(:
ꢀꢁꢂꢀ
& $ %
'ꢇ
ꢀꢁꢂꢀ
& $ %
(ꢇ
H
ꢇ
.
ꢇ
ꢂ
127(ꢅꢂ
1
/
ꢉꢀ;ꢅE
ꢀꢁꢂꢀ
ꢀꢁꢀꢃ
& $ %
&
H
%27720ꢅ9,(:
0LFURFKLSꢅ7HFKQRORJ\ꢅ'UDZLQJꢅꢅ&ꢀꢉꢊꢉꢋꢌꢅ5HYꢁꢅ$ꢅ6KHHWꢅꢂꢅRIꢅꢇ
DS00003412A-page 38
2020 Microchip Technology Inc.
UPD301B/C
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging.
FIGURE 6-4:
40-VQFN PACKAGE (DIMENSIONS)
ꢀꢁꢂ/HDGꢃ9HU\ꢃ7KLQꢃ3ODVWLFꢃ4XDGꢃ)ODWꢄꢃ1Rꢃ/HDGꢃ3DFNDJHꢃꢅ.<;ꢆꢃꢂꢃꢇ[ꢇꢃPPꢃ%RG\ꢃ>94)1@
:LWKꢃꢀꢈꢇ[ꢀꢈꢇꢃPPꢃ([SRVHGꢃ3DG
8QLWV
'LPHQVLRQꢅ/LPLWV
0,//,0(7(56
120
0,1
0$;
1XPEHUꢅRIꢅ7HUPLQDOV
3LWFK
2YHUDOOꢅ+HLJKW
6WDQGRII
7HUPLQDOꢅ7KLFNQHVV
2YHUDOOꢅ/HQJWK
([SRVHGꢅ3DGꢅ/HQJWK
2YHUDOOꢅ:LGWK
([SRVHGꢅ3DGꢅ:LGWK
7HUPLQDOꢅ:LGWK
7HUPLQDOꢅ/HQJWK
1
ꢉꢀ
ꢀꢁꢃꢀꢅ%6&
ꢀꢁꢈꢃ
ꢀꢁꢀꢇ
ꢀꢁꢇꢀꢅ5()
ꢍꢁꢀꢀꢅ%6&
ꢉꢁꢍꢀ
ꢍꢁꢀꢀꢅ%6&
ꢉꢁꢍꢀ
ꢀꢁꢇꢃ
ꢀꢁꢉꢀ
H
$
$ꢂ
$ꢌ
'
'ꢇ
(
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/
ꢀꢁꢈꢀ
ꢀꢁꢀꢀ
ꢀꢁꢎꢀ
ꢀꢁꢀꢋ
ꢉꢁꢃꢀ
ꢉꢁꢋꢀ
ꢉꢁꢃꢀ
ꢀꢁꢇꢀ
ꢀꢁꢌꢃ
ꢀꢁꢇꢀ
ꢉꢁꢋꢀ
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ꢀꢁꢉꢃ
ꢊ
7HUPLQDOꢊWRꢊ([SRVHGꢊ3DG
.
ꢊ
Notes:
ꢂꢁ 3LQꢅꢂꢅYLVXDOꢅLQGH[ꢅIHDWXUHꢅPD\ꢅYDU\ꢐꢅEXWꢅPXVWꢅEHꢅORFDWHGꢅZLWKLQꢅWKHꢅKDWFKHGꢅDUHDꢁ
ꢇꢁ 3DFNDJHꢅLVꢅVDZꢅVLQJXODWHG
ꢌꢁ 'LPHQVLRQLQJꢅDQGꢅWROHUDQFLQJꢅSHUꢅ$60(ꢅ<ꢂꢉꢁꢃ0
%6&ꢏꢅ%DVLFꢅ'LPHQVLRQꢁꢅ7KHRUHWLFDOO\ꢅH[DFWꢅYDOXHꢅVKRZQꢅZLWKRXWꢅWROHUDQFHVꢁ
5()ꢏꢅ5HIHUHQFHꢅ'LPHQVLRQꢐꢅXVXDOO\ꢅZLWKRXWꢅWROHUDQFHꢐꢅIRUꢅLQIRUPDWLRQꢅSXUSRVHVꢅRQO\ꢁ
0LFURFKLSꢅ7HFKQRORJ\ꢅ'UDZLQJꢅꢅ&ꢀꢉꢊꢉꢋꢌꢅ5HYꢁꢅ$ꢅ6KHHWꢅꢇꢅRIꢅꢇ
2020 Microchip Technology Inc.
DS00003412A-page 39
UPD301B/C
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging.
FIGURE 6-5:
40-VQFN PACKAGE (LAND PATTERN)
ꢀꢁꢂ/HDGꢃ9HU\ꢃ7KLQꢃ3ODVWLFꢃ4XDGꢃ)ODWꢄꢃ1Rꢃ/HDGꢃ3DFNDJHꢃꢅ.<;ꢆꢃꢂꢃꢇ[ꢇꢃPPꢃ%RG\ꢃ>94)1@
:LWKꢃꢀꢈꢇ[ꢀꢈꢇꢃPPꢃ([SRVHGꢃ3DG
&ꢂ
;ꢇ
(9
ꢉꢀ
ꢂ
ꢇ
9
*ꢇ
&ꢇ <ꢇ
(9
*ꢂ
<ꢂ
;ꢂ
(
6,/.ꢅ6&5((1
5(&200(1'('ꢅ/$1'ꢅ3$77(51
8QLWV
'LPHQVLRQꢅ/LPLWV
(
0,//,0(7(56
120
ꢀꢁꢃꢀꢅ%6&
0,1
0$;
&RQWDFWꢅ3LWFK
2SWLRQDOꢅ&HQWHUꢅ3DGꢅ:LGWK
2SWLRQDOꢅ&HQWHUꢅ3DGꢅ/HQJWK
&RQWDFWꢅ3DGꢅ6SDFLQJ
;ꢇ
<ꢇ
&ꢂ
&ꢇ
;ꢂ
<ꢂ
*ꢂ
*ꢇ
9
ꢉꢁꢋꢀ
ꢉꢁꢋꢀ
ꢍꢁꢀꢀ
ꢍꢁꢀꢀ
&RQWDFWꢅ3DGꢅ6SDFLQJ
&RQWDFWꢅ3DGꢅ:LGWKꢅꢄ;ꢉꢀꢆ
&RQWDFWꢅ3DGꢅ/HQJWKꢅꢄ;ꢉꢀꢆ
&RQWDFWꢅ3DGꢅWRꢅ&HQWHUꢅ3DGꢅꢄ;ꢉꢀꢆ
&RQWDFWꢅ3DGꢅWRꢅ&RQWDFWꢅ3DGꢅꢄ;ꢌꢍꢆ
7KHUPDOꢅ9LDꢅ'LDPHWHU
ꢀꢁꢌꢀ
ꢀꢁꢈꢀ
ꢀꢁꢇꢀ
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ꢂꢁꢇꢀ
7KHUPDOꢅ9LDꢅ3LWFK
(9
1RWHVꢏ
ꢂꢁ 'LPHQVLRQLQJꢅDQGꢅWROHUDQFLQJꢅSHUꢅ$60(ꢅ<ꢂꢉꢁꢃ0
%6&ꢏꢅ%DVLFꢅ'LPHQVLRQꢁꢅ7KHRUHWLFDOO\ꢅH[DFWꢅYDOXHꢅVKRZQꢅZLWKRXWꢅWROHUDQFHVꢁ
ꢇꢁ )RUꢅEHVWꢅVROGHULQJꢅUHVXOWVꢐꢅWKHUPDOꢅYLDVꢐꢅLIꢅXVHGꢐꢅVKRXOGꢅEHꢅILOOHGꢅRUꢅWHQWHGꢅWRꢅDYRLGꢅVROGHUꢅORVVꢅGXULQJ
UHIORZꢅSURFHVV
0LFURFKLSꢅ7HFKQRORJ\ꢅ'UDZLQJꢅ&ꢀꢉꢊꢇꢉꢋꢌꢅ5HYꢁꢅ$
DS00003412A-page 40
2020 Microchip Technology Inc.
UPD301B/C
APPENDIX A: DATA SHEET REVISION HISTORY
TABLE A-1:
REVISION HISTORY
Revision
Section/Figure/Entry
Correction
DS00003412A (04-06-20)
Initial Document Release
2020 Microchip Technology Inc.
DS00003412A-page 41
UPD301B/C
THE MICROCHIP WEB SITE
Microchip provides online support via our WWW site at www.microchip.com. This web site is used as a means to make
files and information easily available to customers. Accessible by using your favorite Internet browser, the web site con-
tains the following information:
• Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s
guides and hardware support documents, latest software releases and archived software
• General Technical Support – Frequently Asked Questions (FAQ), technical support requests, online discussion
groups, Microchip consultant program member listing
• Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of semi-
nars and events, listings of Microchip sales offices, distributors and factory representatives
CUSTOMER CHANGE NOTIFICATION SERVICE
Microchip’s customer notification service helps keep customers current on Microchip products. Subscribers will receive
e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or
development tool of interest.
To register, access the Microchip web site at www.microchip.com. Under “Support”, click on “Customer Change Notifi-
cation” and follow the registration instructions.
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels:
• Distributor or Representative
• Local Sales Office
• Field Application Engineer (FAE)
• Technical Support
Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales
offices are also available to help customers. A listing of sales offices and locations is included in the back of this docu-
ment.
Technical support is available through the web site at: http://www.microchip.com/support
DS00003412A-page 42
2020 Microchip Technology Inc.
UPD301B/C
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
[X]( 1)
PART NO.
[X]
/XX
[XXX]
Examples:
a)
UPD301B/KYX
Device Tape & Reel
Option
Temp. Package Automotive
Code
No Rd terminations, standard packaging,
Range
0C to +70C, 40-pin VQFN package
b)
UPD301BT/KYX
No Rd terminations, Tape and Reel,
0C to +70C, 40-pin VQFN package
UPD301B-I/KYX
No Rd terminations, Standard packaging,
-40C to +85C, 40-pin VQFN package
UPD301BT-I/KYX
No Rd terminations, Tape and Reel,
-40C to +85C, 40-pin VQFN package
UPD301B-I/KYXVAO
No Rd terminations, Standard packaging,
-40C to +85C, 40-pin VQFN package,
Automotive Grade 3
Device:
UPD301B = No dead battery Rd terminations
UPD301C = Dead battery Rd terminations
c)
d)
e)
Tape and Reel
Option:
Blank = Standard packaging (tray)
T
= Tape and Reel (Note 1)
Temperature
Range:
Blank
I
=
=
0C to +70C (Commercial)
-40C to +85C (Industrial/Automotive Grade 3)
Package:
KYX
= 40-pin VQFN
f)
UPD301C/KYX
Rd terminations, standard packaging,
0C to +70C, 40-pin VQFN package
UPD301CT/KYX
Rd terminations, Tape and Reel,
0C to +70C, 40-pin VQFN package
UPD301C-I/KYX
Rd terminations, Standard packaging,
-40C to +85C, 40-pin VQFN package
UPD301CT-I/KYX
Automotive Code: Vxx
=
3 character code with “V” prefix,
specifying automotive grade 3 product.
g)
h)
i)
Rd terminations, Tape and Reel,
-40C to +85C, 40-pin VQFN package
j)
UPD301C-I/KYXVAO
Rd terminations, Standard packaging,
-40C to +85C, 40-pin VQFN package,
Automotive Grade 3
Note 1:
Tape and Reel identifier only appears in
the catalog part number description. This
identifier is used for ordering purposes and
is not printed on the device package.
Check with your Microchip Sales Office for
package availability with the Tape and Reel
option.
2020 Microchip Technology Inc.
DS00003412A-page 43
UPD301B/C
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device applications and the like is provided only for your convenience and may be
superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO
REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE,
MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Micro-
chip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold
harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or
otherwise, under any Microchip intellectual property rights unless otherwise stated.
Trademarks
The Microchip name and logo, the Microchip logo, Adaptec, AnyRate, AVR, AVR logo, AVR Freaks, BesTime, BitCloud, chipKIT, chipKIT logo,
CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck, LinkMD, maXStylus, maXTouch,
MediaLB, megaAVR, Microsemi, Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer, PackeTime, PIC, picoPower, PICSTART, PIC32 logo,
PolarFire, Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC, SST, SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon,
TempTrackr, TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA are registered trademarks of Microchip Technology Incorporated in the U.S.A. and
other countries.
APT, ClockWorks, The Embedded Control Solutions Company, EtherSynch, FlashTec, Hyper Speed Control, HyperLight Load, IntelliMOS, Libero,
motorBench, mTouch, Powermite 3, Precision Edge, ProASIC, ProASIC Plus, ProASIC Plus logo, Quiet-Wire, SmartFusion, SyncWorld, Temux,
TimeCesium, TimeHub, TimePictra, TimeProvider, Vite, WinPath, and ZL are registered trademarks of Microchip Technology Incorporated in the
U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BlueSky, BodyCom, CodeGuard,
CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM,
ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP, INICnet, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, memBrain,
Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net,
PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI, SuperSwitcher,
SuperSwitcher II, Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.
The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom are registered trademarks of Microchip Technology Inc. in
other countries.
GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other
countries.
All other trademarks mentioned herein are property of their respective companies.
© 2020, Microchip Technology Incorporated, All Rights Reserved.
ISBN: 9781522456933
For information regarding Microchip’s Quality Management Systems,
please visit www.microchip.com/quality.
DS00003412A-page 44
2020 Microchip Technology Inc.
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
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Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
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Netherlands - Drunen
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Fax: 31-416-690340
Indianapolis
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Fax: 317-773-5453
Tel: 317-536-2380
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Tel: 86-592-2388138
Norway - Trondheim
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China - Zhuhai
Tel: 86-756-3210040
Poland - Warsaw
Tel: 48-22-3325737
Los Angeles
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Tel: 949-462-9523
Fax: 949-462-9608
Tel: 951-273-7800
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Spain - Madrid
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Tel: 919-844-7510
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Tel: 631-435-6000
Sweden - Stockholm
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San Jose, CA
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Fax: 44-118-921-5820
Canada - Toronto
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Fax: 905-695-2078
DS00003412A-page 45
2020 Microchip Technology Inc.
05/14/19
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