MAX3302EEBA [MAXIM]
Line Driver/Receiver, 1 Driver, BICMOS, PBGA25;型号: | MAX3302EEBA |
厂家: | MAXIM INTEGRATED PRODUCTS |
描述: | Line Driver/Receiver, 1 Driver, BICMOS, PBGA25 泵 |
文件: | 总35页 (文件大小:869K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
19-3275; Rev 2; 1/06
USB On-the-Go Transceivers and Charge Pumps
General Description
Features
♦ USB 2.0-Compliant Full-/Low-Speed OTG
The MAX3301E/MAX3302E fully integrated USB On-the-
Go (OTG) transceivers and charge pumps allow mobile
devices such as PDAs, cellular phones, and digital
cameras to interface directly with USB peripherals and
each other without the need of a host PC. Use the
MAX3301E/MAX3302E with an embedded USB host to
directly connect to peripherals such as printers or
external hard drives.
Transceivers
♦ Ideal for USB On-the-Go, Embedded Host, or
Peripheral Devices
♦ ±±15k ESD Protection on IDꢀIꢁ, k
, D+, and D-
BUS
Terminals
♦ Charge Pump for k
Signaling and Operation
BUS
Down to 3k
The MAX3301E/MAX3302E integrate a USB OTG trans-
♦ Internal k
and ID Comparators
BUS
ceiver, a V
charge pump, a linear regulator, and an
BUS
2
I C-compatible, 2-wire serial interface. An internal level
shifter allows the MAX3301E/MAX3302E to interface
with +1.65V to +3.6V logic supply voltages. The
MAX3301E/MAX3302E’s OTG-compliant charge pump
operates with +3V to +4.5V input supply voltages, and
♦ Internal Switchable Pullup and Pulldown
Resistors for Host/Peripheral Functionality
♦ I2C Bus Interface with Command and Status
Registers
♦ Linear Regulator Powers Internal Circuitry and
supplies an OTG-compatible output on V
sourcing more than 8mA of output current.
while
BUS
D+/D- Pullup Resistors
♦ Support SRP and HꢁP
The MAX3301E/MAX3302E enable USB OTG communi-
cation from highly integrated digital devices that cannot
Ordering Information
PACKAGE
supply or tolerate the +5V V
levels that USB OTG
BUS
requires. The device supports USB OTG session-request
protocol (SRP) and host-negotiation protocol (HNP).
PIꢁ-
PACKAGE
PKG
CODE
PART
SIZE
(mm)
The MAX3301E/MAX3302E provide built-in 15ꢀV elec-
trostatic-discharge (ESD) protection for the V , ID_IN,
BUS
‡
MAX330±EEBA-T
MAX3301EETJ
2.5 x 2.5
5 x 5
25 UCSP
B25-1
D+, and D- terminals. The MAX3301E/MAX3302E are
available in 25-bump chip-scale (UCSP™), 28-pin TQFN,
and 32-pin TQFN pacꢀages and operate over the
extended -40°C to +85°C temperature range.
32 TQFN-EP** T3255-4
‡
MAX3302EEBA-T*
MAX3302EETI
2.5 x 2.5
4 x 4
25 UCSP
B25-1
28 TQFN-EP** T2844-1
Selector Guide
Note: All devices specified over the -40°C to +85°C operating
range.
‡UCSP bumps are in a 5 x 5 array. The UCSP package size is
2.5mm x 2.5mm x 0.62mm. Requires solder temperature profile
described in the Absolute Maximum Ratings section. UCSP reli-
ability is integrally linked to the user’s assembly methods, circuit
board material and environment. See the UCSP Applications
Information section of this data sheet for more information.
*Future product—contact factory for availability.
2
I C ADDRESSES FOR
†
PART
POWER-UP STATE
SPECIAL-FUꢁCTIOꢁ
REGISTER 2
Shutdown (sdwn = 1,
bit 0 of special-
MAX330±E
16h, 17h
function register 2)
**EP = Exposed paddle.
Operating (sdwn = 1,
MAX3302E bit 0 of special-
10h, 11h, and 16h, 17h
function register 2)
Purchase of I2C components from Maxim Integrated Products,
Inc. or one of its sublicensed Associated Companies, conveys a
license under the Philips I2C Patent Rights to use these compo-
nents in an I2C system, provided that the system conforms to the
I2C Standard Specification as defined by Philips.
†The MAX3301E powers up in its lowest power state and the
MAX3302E powers up in the operational, VP/VM USB mode.
UCSP is a trademark of Maxim Integrated Products, Inc.
Applications
Mobile Phones
PDAs
Digital Cameras
MP3 Players
Pin Configurations appear at end of data sheet.
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ Maxim Integrated Products
±
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
USB On-the-Go Transceivers and Charge Pumps
ABSOLUTE MAXIMUM RATIꢁGS
All voltages are referenced to GND.
Continuous Power Dissipation (T = +70°C)
A
V
, V .....................................................................-0.3V to +6V
5 x 5 UCSP (derate 12.2mW/°C above +70°C) ...........976mW
32-Pin TQFN (5mm x 5mm x 0.8mm) (derate 21.3mW/°C
above +70°C).............................................................1702mW
28-Pin TQFN (4mm x 4mm x 0.8mm) (derate 20.8mW/°C
above +70°C).............................................................1666mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Bump Reflow Temperature (Note 1)
CC
L
TRM (regulator off or supplied by V
TRM (regulator supplied by V )...............-0.3V to (V
D+, D- (transmitter tri-stated) ...................................-0.3V to +6V
D+, D- (transmitter functional)....................-0.3V to (V + 0.3V)
)..-0.3V to (V
+ 0.3V)
BUS
+ 0.3V)
CC
BUS
CC
CC
V
.........................................................................-0.3V to +6V
BUS
ID_IN, SCL, SDA.......................................................-0.3V to +6V
INT, SPD, RESET, ADD, OE/INT, RCV, VP,
VM, SUS, DAT_VP, SE0_VM ......................-0.3V to (V + 0.3V)
L
C+.............................................................-0.3V to (V
C-................................................................-0.3V to (V
Short-Circuit Duration, V
+ 0.3V)
+ 0.3V)
BUS
CC
Infrared (15s) ...............................................................+200°C
Vapor Phase (20s) .......................................................+215°C
to GND .........................Continuous
BUS
ꢁote ±: The UCSP pacꢀage is constructed using a unique set of pacꢀaging techniques that impose a limit on the thermal profile the
device can be exposed to during board-level solder attach and reworꢀ. This limit permits only the use of the solder profiles recom-
mended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and convection reflow. Preheating is
required. Hand or wave soldering is not allowed.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(V
= +3V to +4.5V, V = +1.65V to +3.6V, C
= 100nF, C
= 1µF, ESR
= 0.1Ω (max), T = T
to T
, unless
CC
L
FLYING
VBUS
CVBUS
A
MIN
MAX
otherwise noted. Typical values are at V
= +3.7V, V = +2.5V, T = +25°C.) (Note 2)
CC
L
A
PARAMETER
Supply Voltage
SYMBOL
COꢁDITIOꢁS
MIꢁ
3.0
TYP
MAX
4.5
3.6
3.60
5
UꢁITS
V
V
V
CC
TRM Output Voltage
Logic Supply Voltage
V
3.0
TRM
V
1.65
V
L
2
V Supply Current
L
I
I C interface in steady state
µA
VL
USB normal mode, C = 50pF, device
L
switching at full speed
V
Operating Supply Current
I
10
mA
CC
CC
vbus_drv = 1, I
= 0
1.4
0.5
3.5
2
VBUS
V
Supply Current During Full-
CC
mA
µA
µA
µA
Speed Idle
vbus_drv = 0, D+ = high, D- = low
0.8
10
V
Shutdown Supply Current
I
CC(SHDN)
CC
V
Interrupt Shutdown Supply
CC
I
ID_IN floating or high
20
30
CC(ISHDN)
Current
Suspend Supply Current
V
USB suspend mode, ID_IN floating or high
170
500
CC
LOGIC I/O
RCV, DAT_VP, SE0_VM, INT,
OE/INT, VP, VM Output High
Voltage
V
I
I
= 1mA (sourcing)
= 1mA (sinꢀing)
V - 0.4
V
V
V
OH
OUT
L
RCV, DAT_VP, SE0_VM, INT,
OE/INT, VP, VM Output Low
Voltage
V
0.4
OL
OUT
OE/INT, SPD, SUS, RESET,
DAT_VP, SE0_VM Input High
Voltage
V
2/3 x V
L
IH
2
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USB On-the-Go Transceivers and Charge Pumps
DC ELECTRICAL CHARACTERISTICS (continued)
(V
= +3V to +4.5V, V = +1.65V to +3.6V, C
= 100nF, C
= 1µF, ESR
= 0.1Ω (max), T = T
to T
, unless
CC
L
FLYING
VBUS
CVBUS
A
MIN
MAX
otherwise noted. Typical values are at V
= +3.7V, V = +2.5V, T = +25°C.) (Note 2)
CC
L
A
PARAMETER
SYMBOL
COꢁDITIOꢁS
MIꢁ
TYP
MAX
UꢁITS
OE/INT, SPD, SUS, RESET
DAT_VP, SE0_VM Input Low
Voltage
V
0.4
V
IL
ADD Input High Voltage
ADD Input Low Voltage
V
2/3 x V
V
IHA
L
V
1/3 x V
V
ILA
L
Input Leaꢀage Current
1
µA
TRAꢁSCEIkER SPECIFICATIOꢁS
Differential Receiver Input
Sensitivity
|V - V
D+
|
0.2
0.8
V
V
V
V
D-
Differential Receiver Common-
Mode Voltage
2.5
0.8
Single-Ended Receiver Input Low
Voltage
V
D+, D-
D+, D-
ILD
Single-Ended Receiver Input
High Voltage
V
2.0
2.8
IHD
Single-Ended Receiver Hysteresis
Single-Ended Output Low Voltage
Single-Ended Output High Voltage
Off-State Leaꢀage Current
0.2
V
V
V
D+, D-, R = 1.5ꢀΩ from D+ or D- to 3.6V
0.3
3.6
1
OLD
L
V
D+, D-, R = 15ꢀΩ from D+ or D- to GND
V
OHD
L
D+, D-
µA
Low steady-state drive
High steady-state drive
2
2
13
13
D+, D-, not
including R
Driver Output Impedance
Ω
EXT
ESD PROTECTIOꢁ (k
, IDꢀIꢁ, D+, D-)
BUS
Human Body Model
15
10
6
ꢀV
ꢀV
ꢀV
IEC 61000-4-2 Air-Gap Discharge
IEC 61000-4-2 Contact Discharge
THERMAL SHUTDOWꢁ
Thermal Shutdown Low-to-High
Thermal Shutdown High-to-Low
+160
+150
oC
oC
CHARGE-PUMP SPECIFICATIOꢁS (vbusꢀdrv = ±)
V
V
V
Output Voltage
Output Current
Output Ripple
V
3V < V < 4.5V, C
= 10µF, I = 8mA
VBUS
4.80
8
5.25
V
BUS
BUS
BUS
BUS
CC
VBUS
I
mA
mV
VBUS
I
= 8mA, C
= 10µF
VBUS
100
VBUS
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
3
USB On-the-Go Transceivers and Charge Pumps
DC ELECTRICAL CHARACTERISTICS (continued)
(V
= +3V to +4.5V, V = +1.65V to +3.6V, C
= 100nF, C
= 1µF, ESR
= 0.1Ω (max), T = T
to T , unless
MAX
CC
L
FLYING
VBUS
CVBUS
A
MIN
otherwise noted. Typical values are at V
= +3.7V, V = +2.5V, T = +25°C.) (Note 2)
CC
L
A
PARAMETER
SYMBOL
COꢁDITIOꢁS
MIꢁ
TYP
MAX
UꢁITS
ꢀHz
V
Switching Frequency
f
390
SW
V
Leaꢀage Voltage
vbus_drv = 0
0.2
BUS
C
= 10µF, I
= 8mA, measured
VBUS
VBUS
V
Rise Time
100
ms
BUS
from 0 to +4.4V
V
V
V
Pulldown Resistance
Pullup Resistance
Input Impedance
vbus_dischrg = 1, vbus_drv = 0, vbus_chrg = 0
vbus_chrg = 1, vbus_drv = 0, vbus_dischrg = 0
vbus_dischrg = 0, vbus_drv = 0, vbus_chrg = 0
3.8
650
40
5
6.5
1250
100
ꢀΩ
Ω
BUS
BUS
BUS
930
70
Z
ꢀΩ
INVBUS
COMPARATOR SPECIFICATIOꢁS
V
V
Valid Comparator Threshold
Valid Comparator Hysteresis
V
4.4
4.6
50
4.8
V
BUS
BUS
TH-VBUS
V
mV
HYS-VBUS
Session-Valid Comparator
Threshold
V
TH-
SESS_VLD
0.8
0.2
1.4
0.5
2.0
0.8
V
V
Session-End Comparator
Threshold
V
TH-
SESS_END
dp_hi Comparator Threshold
dm_hi Comparator Threshold
cr_int Pulse Width
0.8
0.8
1.3
1.3
750
0.5
2.0
2.0
V
V
ns
V
cr_int Comparator Threshold
IDꢀIꢁ SPECIFICATIOꢁS
0.4
0.6
0.2 x
0.8 x
V
CC
ID_IN Input Voltage for Car Kit
ID_IN Input Voltage for A Device
ID_IN Input Voltage for B Device
V
V
V
V
CC
0.1 x
V
CC
0.9 x
V
CC
ID_IN Input Impedance
Z
70
-1
100
150
130
+1
ꢀΩ
µA
Ω
ID_IN
ID_IN Input Leaꢀage Current
ID_IN Pulldown Resistance
ID_IN = V
CC
id_pulldown = 1
300
TERMIꢁATIꢁG RESISTOR SPECIFICATIOꢁS (D+, D-)
D+ Pulldown Resistor
D- Pulldown Resistor
D+ Pullup Resistor
D- Pullup Resistor
dp_pulldown = 1
14.25
14.25
1.425
1.425
15
15
15.75
15.75
1.575
1.575
ꢀΩ
ꢀΩ
ꢀΩ
ꢀΩ
dm_pulldown = 1
dp_pullup = 1
dm_pullup = 1
1.5
1.5
4
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
TIMIꢁG CHARACTERISTICS
(V
= +3V to +4.5V, V = +1.65V to +3.6V, C
= 100nF, C
= 1µF, ESR
= 0.1Ω (max), T = T
to T
, unless
CC
L
FLYING
VBUS
CVBUS
A
MIN
MAX
otherwise noted. Typical values are at V
= +3.7V, V = +2.5V, T = +25°C.) (Note 2)
CC
L
A
PARAMETER
SYMBOL
COꢁDITIOꢁS
MIꢁ
TYP
MAX
UꢁITS
TRAꢁSMITTER CHARACTERISTICS (FULL-SPEED MODE)
D+, D- Rise Time
t
Figures 2 and 5
Figures 2 and 5
4
4
20
20
ns
ns
%
V
R
D+, D- Fall Time
t
F
Rise-/Fall-Time Matching
Output-Signal Crossover Voltage
Figures 2 and 5 (Note 3)
90
1.3
110
2.0
V
Figures 2, 6, and 7 (Note 3)
CRS_F
TRAꢁSMITTER CHARACTERISTICS (LOW-SPEED MODE)
D+, D- Rise Time
t
Figures 2 and 5
Figures 2 and 5
Figures 2 and 5
Figures 2, 6, and 7
75
75
80
1.3
300
300
125
2.0
ns
ns
%
V
R
D+, D- Fall Time
t
F
Rise-/Fall-Time Matching
Output-Signal Crossover Voltage
V
CRS_L
TRAꢁSMITTER TIMIꢁG (FULL-SPEED MODE)
t
t
Low-to-high, Figures 2 and 6
High-to-low, Figures 2 and 6
Figures 1 and 8
25
25
25
25
PLH
PHL
PDZ
PZD
Driver Propagation Delay
(DAT_VP, SE0_VM to D+, D-)
ns
Driver Disable Delay
Driver Enable Delay
t
t
ns
ns
Figures 2 and 8
TRAꢁSMITTER TIMIꢁG (LOW-SPEED MODE) (Low-speed delay timing is dominated by the slow rise and fall times.)
SPEED-IꢁDEPEꢁDEꢁT TIMIꢁG CHARACTERISTICS
Receiver Disable Delay
Receiver Enable Delay
D+ Pullup Assertion Time
RCV Rise Time
t
t
Figure 4
30
30
3
ns
ns
µs
ns
ns
PVZ
PZV
Figure 4
During HNP
t
R
Figures 3 and 5, C = 15pF
4
4
L
RCV Fall Time
t
Figures 3 and 5, C = 15pF
L
F
Figures 3 and 10, |D+ - D-| to DAT_VP
Figures 3 and 9, |D+ - D-| to RCV
30
30
Differential-Receiver Propagation
Delay
t
t
, t
ns
ns
PHL PLH
Single-Ended-Receiver
Propagation Delay
Figures 3 and 9, D+, D- to DAT_VP,
SE0_VM
, t
30
PHL PLH
Interrupt Propagation Delay
100
µs
µs
µs
µs
V
Propagation Delay
Dominated by the V
rise time
BUS
0.2
BUS_CHRG
Time to Exit Shutdown
Shutdown Delay
1
10
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
1
USB On-the-Go Transceivers and Charge Pumps
2
I C-/SMBus™-COMPATIBLE TIMIꢁG SPECIFICATIOꢁS
(V
= +3V to +4.5V, V = +1.65V to +3.6V, C
= 100nF, C
= 1µF, ESR
= 0.1Ω (max), T = T
to T
, unless
CC
L
FLYING
VBUS
CVBUS
A
MIN
MAX
otherwise noted. Typical values are at V
= +3.7V, V = +2.5V, T = +25°C.) (Note 2)
CC
L
A
PARAMETER
SYMBOL
COꢁDITIOꢁS
MIꢁ
TYP
MAX
UꢁITS
Serial Clocꢀ Frequency
f
400
ꢀHz
SCL
Bus-Free Time Between Stop and
Start Conditions
t
1.3
µs
BUF
Start-Condition Hold Time
Stop-Condition Setup Time
Clocꢀ Low Period
t
t
0.6
0.6
1.3
0.6
100
µs
µs
µs
µs
ns
µs
HD_STA
SU_STO
t
LOW
Clocꢀ High Period
t
HIGH
Data Setup Time
t
SU_DAT
HD_DAT
Data Hold Time
t
(Note 4)
(Note 5)
0.9
20 +
0.1 x
Rise Time of SDA and SCL
Fall Time of SDA and SCL
t
300
ns
R
C
B
t
Measured from 0.3 x V to 0.7 x V (Note 5)
300
400
ns
F
L
L
Capacitive Load for each Bus
Line
C
pF
B
SDA AꢁD SCL I/O STAGE CHARACTERISTICS
0.3 x
Input-Voltage Low
Input-Voltage High
V
V
V
IL
V
L
0.7 x
V
IH
V
L
SDA Output-Voltage Low
V
I
= 3mA
0.4
V
OL
SINK
Pulse Width of Suppressed Spiꢀe
t
SP
(Note 6)
50
ns
ꢁote 2: Parameters are 100% production tested at +25°C. Limits over temperature are guaranteed by design.
ꢁote 3: Guaranteed by bench characterization. Limits are not production tested.
ꢁote 4: A master device must provide a hold time of at least 300ns for the SDA signal to bridge the undefined region of SCL’s falling
edge.
ꢁote 1: C is the total capacitance of one bus line in pF, tested with C = 400pF.
B
B
ꢁote 6: Input filters on SDA, SCL, and ADD suppress noise spiꢀes of less than 50ns.
SMBus™ is a trademark of Intel Corporation.
6
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
Typical Operating Characteristics
(Typical operating circuit, V
= +3.7V, V = +2.5V, C
= 100nF, T = +25°C, unless otherwise noted.)
CC
L
FLYING A
INPUT CURRENT (I
)
V
vs. V
V
OUTPUT VOLTAGE
CC
BUS
BUS
vs. V
OUTPUT CURRENT
vs. INPUT VOLTAGE (V )
BUS
CC
50
40
30
20
10
0
5.50
5.25
5.00
4.75
4.50
4.25
4.00
5.75
5.50
5.25
5.00
4.75
4.50
V
V
= 3.3V
= 4.2V
V
V
= 3.0V
= 4.2V
LINEAR REGULATOR
POWERED BY V
CC
CC
CC
CC
CC
LINEAR REGULATOR
POWERED BY V
CC
I
= 0
VBUS
I
= 8mA
VBUS
LINEAR REGULATOR
POWERED BY V
CC
0
4
8
12
16
20
0
5
10
OUTPUT CURRENT (mA)
BUS
15
20
25
30
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
V
OUTPUT CURRENT (mA)
V
INPUT VOLTAGE (V ) (V)
CC
BUS
TIME TO ENTER SHUTDOWN
TIME TO EXIT SHUTDOWN
VBUS DURING SRP
MAX3301E toc04
MAX3301E toc05
MAX3301E toc06
D+
D-
1V/div
1V/div
V
BUS
1V/div
C
> 13µF
VBUS
D-
D+
1V/div
1V/div
V
BUS
1V/div
SCL
SCL
2V/div
1V/div
C
> 96µF
VBUS
100ns/div
4µs/div
20ns/div
DRIVER PROPAGATION DELAY HIGH-TO-LOW
DRIVER PROPAGATION DELAY LOW-TO-HIGH
DRIVER PROPAGATION DELAY HIGH-TO-LOW
(LOW-SPEED MODE)
(LOW-SPEED MODE)
(FULL-SPEED MODE)
MAX3301E toc07
MAX3301E toc08
MAX3301E toc09
DAT_VP
DAT_VP
DAT_VP
1V/div
1V/div
1V/div
D+
1V/div
D-
1V/div
D-
1V/div
D+
1V/div
D-
1V/div
D+
1V/div
100ns/div
100ns/div
4ns/div
_______________________________________________________________________________________
7
USB On-the-Go Transceivers and Charge Pumps
Typical Operating Characteristics (continued)
(Typical operating circuit, V
= +3.7V, V = +2.5V, C
= 100nF, T = +25°C, unless otherwise noted.)
CC
L
FLYING A
DRIVER PROPAGATION DELAY LOW-TO-HIGH
DRIVER ENABLE DELAY
(FULL-SPEED MODE)
DRIVER DISABLE DELAY
(FULL-SPEED MODE)
MAX3301E toc12
(FULL-SPEED MODE)
MAX3301E toc10
MAX3301E toc11
OE/INT
1V/div
DAT_VP
1V/div
OE/INT
1V/div
D+
1V/div
D+
1V/div
D-
1V/div
D-
1V/div
D+
1V/div
D-
1V/div
4ns/div
10ns/div
10ns/div
DRIVER ENABLE DELAY
(LOW-SPEED MODE)
DRIVER DISABLE DELAY
(LOW-SPEED MODE)
SUPPLY CURRENT
vs. TEMPERATURE
MAX3301E toc13
MAX3301E toc14
1.0
0.8
0.6
0.4
0.2
0
OE/INT
1V/div
OE/INT
1V/div
V
V
= 4.2V
= 3.3V
CC
CC
D+
1V/div
D-
1V/div
D-
1V/div
D+
1V/div
V
OFF
BUS
FULL-SPEED IDLE
C
= C = 400pF
D-
D+
100ns/div
10ns/div
-40 -15 10
35
60
85
TEMPERATURE (°C)
8
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USB On-the-Go Transceivers and Charge Pumps
Pin Description
PIꢁ
ꢁAME
FUꢁCTIOꢁ
MAX3302E
28-PIꢁ TQFꢁ
MAX330±E
32-PIꢁ TQFꢁ
UCSP
System-Side Data Input/Output. DAT_VP is an input if OE/INT is logic 0.
1
2
D2
DAT_VP DAT_VP is an output if OE/INT is logic 1. Program the function of DAT_VP
with the dat_se0 bit (bit 2 of control register 1, see Table 7).
Input Power Supply. Connect a +3V to +4.5V supply to V
GND with a 1µF capacitor. The supply range enables direct powering from
one Li+ battery.
and bypass to
CC
D1,
E3
2, 25
3, 29
V
CC
1, 4, 9, 12, 17,
25, 28
3, 9, 23
4
—
N.C.
C-
No Connection. Not internally connected.
5
C1
Charge-Pump Flying-Capacitor Negative Terminal
System-Side Data Input/Output. SE0_VM is an input if OE/INT is logic 0.
5
6
C2
SE0_VM SE0_VM is an output if OE/INT is logic 1. Program the function of SE0_VM
with the dat_se0 bit (bit 2 of control register 1, see Table 7).
B1,
C5
6, 18
7, 21
GND
Ground
2
7
8
8
A1
B2
SDA
SCL
I C-Compatible Serial Data Interface. Open-drain data input/output.
2
10
I C-Compatible Serial Clocꢀ Input
Output Enable. OE /INT controls the input or output status of DAT_VP/SE0_VM
and D+/D-. When OE /INT is logic 0, the device is in transmit mode. When
OE /INT is logic 1, the device is in receive mode. When in suspend mode,
OE /INT can be programmed to function as an interrupt output that detects the
same interrupts as INT. The oe_int_en bit (bit 5 of control register 1, see Table
7) enables and disables the interrupt circuitry of OE /INT. The irq_mode bit (bit 1
of special-function register 2, see Table 15) programs the output configuration
of INT and OE /INT as open-drain or push-pull.
10
11
A2
OE/INT
D+ and D- Differential Receiver Output. In receive mode (see Table 4), when
D+ is high and D- is low, RCV is high. In receive mode, when D+ is low and
D- is high, RCV is low. RCV is low in suspend mode.
11
12
13
14
A3
B3
RCV
SPD
Speed-Selector Input. Connect SPD to GND to select the low-speed data rate
(1.5Mbps). Connect SPD to V to select the full-speed data rate (12Mbps).
L
Disable the SPD input by writing a 1 to spd_susp_ctl (bit 1 in special-function
register 1, see Table 14). The speed bit (bit 0 of control register 1, see Table
7) determines the maximum data rate of the MAX3301E/MAX3302E when the
SPD input is disabled.
System-Side Logic-Supply Input. Connect to the system’s logic-level power
supply, +1.65V to +3.6V. This sets the maximum output levels of the logic
outputs and the input thresholds of the logic inputs. Bypass to GND with a
0.1µF capacitor.
13
14
15
16
A4
A5
V
L
Active-High Suspend Input. Drive SUS low for normal USB operation. Drive
SUS high to enable suspend mode. RCV asserts low in suspend mode.
Disable the SUS input by writing a 1 to spd_susp_ctl (bit 1 in special-function
register 1, see Table 14). The suspend bit (bit 1 of control register 1, see
Table 7) determines the operating mode of the MAX3301E/MAX3302E when
the SUS input is disabled.
SUS
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9
USB On-the-Go Transceivers and Charge Pumps
Pin Description (continued)
PIꢁ
ꢁAME
FUꢁCTIOꢁ
MAX3302E
28-PIꢁ TQFꢁ
MAX330±E
32-PIꢁ TQFꢁ
UCSP
Active-Low Interrupt Source. Program the INT output as push-pull or open-
drain with the irq_mode bit (bit 1 of special-function register 2, see Tables 15
and 16).
15
18
B4
INT
Active-Low Reset Input. Drive RESET low to asynchronously reset the
MAX3301E/MAX3302E.
16
17
19
19
20
22
B5
C3
C4
RESET
ADD
2
I C-Interface Address Selection Input. (See Table 5.)
ID Input. ID_IN is internally pulled up to V . The state of ID_IN determines
CC
ID bits 3 and 5 of the interrupt source register (see Table 10).
ID_IN
USB Differential Data Input/Output. Connect D- to the D- terminal of the USB
connector through a 27.4Ω 1% series resistor.
20
21
22
23
24
26
D5
E5
D4
D-
D+
VM
USB Differential Data Input/Output. Connect D+ to the D+ terminal of the USB
connector through a 27.4Ω 1% series resistor.
Single-Ended Receiver Output. VM functions as a receiver output in all
operating modes. VM duplicates D-.
USB Transceiver Regulated Output Voltage. TRM provides a regulated 3.3V
output. Bypass TRM to GND with a 1µF ceramic capacitor installed as close
to the device as possible. TRM normally derives power from V . TRM
CC
24
27
E4
TRM
VP
provides power to internal circuitry and provides the pullup voltage for the
internal USB pullup resistor. Do not use TRM to power external circuitry. The
reg_sel bit (bit 3 of special-function register 2, see Table 15 and Table 16)
controls the TRM power source with software.
Single-Ended Receiver Output. VP functions as a receiver output in all
operating modes. VP duplicates D+.
26
27
30
31
D3
E2
USB Bus Power. Use V
as an output to power the USB bus, or as an input
BUS
to power the internal linear regulator. Bits 5 to 7 of control register 2 (see
V
BUS
Table 8) control the charging and discharging functions of V
.
BUS
28
EP
32
EP
E1
—
C+
EP
Charge-Pump Flying-Capacitor Positive Terminal
Exposed Paddle. Connect to GND or leave floating
Test Circuits and Timing Diagrams
LOAD FOR DISABLE TIME (D+/D-) MEASUREMENT
V = 0 FOR t
TEST POINT
LOAD FOR
TEST POINT
27.4Ω 220Ω
.
PHZ
V = V
FOR t
.
TRM
PLZ
27.4Ω
1) ENABLE TIME (D+/D-) MEASUREMENT
2) DAT_VP/SEO_VM TO D+/D- PROPAGATION DELAY
3) D+/D- RISE/FALL TIMES
C = 50pF FOR FULL SPEED.
L
DUT
DUT
C = 200pF TO 600pF FOR LOW SPEED.
L
D+/D-
15kΩ
D+/D-
C = 50pF FOR FULL SPEED.
L
C
C
V
L
L
C = 200pF TO 600pF FOR LOW SPEED.
L
Figure 1. Load for Disable Time Measurement
Figure 2. Load for Enable Time, Transmitter Propagation Delay,
and Transmitter Rise/Fall Times
±0 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
Test Circuits and Timing Diagrams (continued)
TEST POINT
LOAD FOR
V
L
V / 2
L
V / 2
L
OE/INT
0V
1) D+/D- TO RCV/VP/VM/DAT_VP/SEO_VM PROPAGATION DELAYS
DUT
2) RCV/VP/VM/DAT_VP/SEO_VM RISE/FALL TIMES (C = 15pF)
L
RCV, VP, VM,
DAT_VP,
t
t
PZD
PDZ
C
L
V
OH
V
- 0.3V
OHD
SEO_VM
D+ OR D-
V
OLD
+ 0.3V
V
OL
Figure 3. Load for Receiver Propagation Delay and Receiver
Rise/Fall Times
Figure 8. Enable and Disable Timing
TEST POINT
270Ω
DUT
3V
0V
D+
D-
DAT_VP
SEO_VM
V = 2/3 x V
L
t
t
PLH
PHL
V
L
RCV
Figure 4. Load for DAT_VP, SE0_VM Enable/Disable Time
Measurements
V / 2
L
0V
t
t
t
R
t
F
PHL
PLH
PHL
DAT_VP
SE0_VM
V
L
V
OH
90%
10%
V / 2
L
0V
t
t
PLH
V
L
V
OL
V / 2
L
Figure 5. Rise and Fall Times
0V
D+/D- RISE/FALL TIMES ≤ 8ns, V = 1.8V, 2.5V, OR 3.3V
L
DAT_VP
t
t
PLH
PHL
Figure 9. D+/D- to RCV, DAT_VP, SE0_VM Propagation Delays
(VP_VM Mode)
SE0_VM
D+
D-
V
OHD
OLD
V
, V
V
, V
CRS_F CRS_L
CRS_F CRS_L
3V
0V
D+
V
Figure 6. Timing of DAT_VP, SE0_VM to D+, D- in VP_VM
Mode (dat_se0 = 0)
D-
t
t
PLH
PHL
V
L
DAT_VP
DAT_VP
V / 2
L
t
t
PLH
PHL
0V
SE0_VM
D+
V
OHD
SE0_VM
V
, V
V
, V
CRS_F CRS_L
CRS_F CRS_L
D+/D- RISE/FALL TIMES ≤ 8ns, V = 1.8V, 2.5V, OR 3.3V
L
D-
V
OLD
Figure 10. D+/D- to DAT_VP, SE0_VM Propagation Delays
(DAT_SE0 Mode)
Figure 7. Timing of DAT_VP, SE0_VM to D+/D- in DAT_SE0
Mode (dat_se0 = 1)
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ ±±
USB On-the-Go Transceivers and Charge Pumps
Block Diagram
ID
ID_IN
DETECTOR
ADD
INT
C+
C-
V
BUS
CHARGE PUMP
SERIAL
CONTROLLER
RESET
V
BUS
V
BUS
COMPARATORS
LINEAR
REGULATOR
TRM
SCL
SDA
PULLUP/PULLDOWN
RESISTORS
CAR KIT INTERRUPT
DETECTOR
DAT_VP
SE0_VM
OE/INT
D+
D-
DIFF
TX
VP
VM
DIFF
RX
LEVEL
TRANSLATOR
RCV
V
CC
SE
D+
POWER
BLOCK
V
L
GND
SPD
SUS
SE
D-
MAX3301E
MAX3302E
Figure 11. Block Diagram
±2 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
accordance with USB OTG specifications. The charge
Detailed Description
pump can be turned off to conserve power when not
The USB OTG specification defines a dual-role USB
used. Control of the charge pump is set through the
vbus_drv bit (bit 5) of control register 2 (see Table 8).
device that acts either as an A device or as a B device.
The A device supplies power on V
and initially
BUS
serves as the USB host. The B device serves as the ini-
tial peripheral and requires circuitry to monitor and pulse
BUS
Linear Regulator (TRM)
An internal 3.3V linear regulator powers the transceiver
and the internal 1.5ꢀΩ D+/D- pullup resistor. Under the
control of internal register bits, the linear regulator can be
V
. These initial roles can be reversed using HNP.
The MAX3301E/MAX3302E combine a low- and full-
speed USB transceiver with additional circuitry required
by a dual-role device. The MAX3301E/MAX3302E
employ flexible switching circuitry to enable the device
to act as a dedicated host or peripheral USB transceiv-
er. For example, the charge pump can be turned off and
powered from V
or V
. The regulator power-supply
CC
BUS
settings are controlled by the reg_sel bit (bit 3) in special-
function register 2 (Tables 15 and 16). This flexibility
allows the system designer to configure the MAX3301E/
MAX3302E for virtually any USB power situation.
the internal regulator can be powered from V
bus-powered peripheral applications.
for
BUS
The output of the TRM is not a power supply. Do not use
as a power source for any external circuitry. Connect a
1.0µF (or greater) ceramic or plastic capacitor from TRM
to GND, as close to the device as possible.
The Selector Guide shows the differences between the
MAX3301E and MAX3302E. The MAX3301E powers up
in its lowest power state and must be turned on by set-
ting the sdwn bit to 0. The MAX3302E powers up in the
operational, VP/VM USB mode. This allows a micro-
processor (µP) to use the USB port for power-on boot-
V
Level-Detection Comparators
BUS
Comparators drive interrupt source register bits 0, 1,
and 7 (Table 10) to indicate important USB OTG V
voltage levels:
BUS
2
up, without having to access I C. To put the MAX3302E
•
•
•
V
is valid (vbus_vld)
BUS
into low-power shutdown, set the sdwn bit to 0. In the
MAX3302E, special-function register 2 can be
USB session is valid (sess_vld)
2
addressed at I C register location 10h, 11h (as well as
USB session has ended (sess_end)
locations 16h, 17h) to support USB OTG serial-interface
2
The vbus_valid comparator sets vbus_vld to 1 if V
is
engine (SIE) implementations that are limited to I C
BUS
higher than the V
valid comparator threshold. The
register addresses between 0h and 15h.
BUS
V
BUS
valid status bit (vbus_vld) is used by the A device
Transceiver
The MAX3301E/MAX3302E transceiver complies with
the USB version 2.0 specification, and operates at full-
speed (12Mbps) and low-speed (1.5Mbps) data rates.
Set the data rate with the SPD input. Set the direction of
data transfer with the OE/INT input. Alternatively, control
transceiver operation with control register 1 (Table 7)
and special-function registers 1 and 2 (see Tables 14,
15, and 16).
to determine if the B device is sinꢀing too much current
(i.e., is not supported). The session_valid comparator
sets sess_vld to 1 if V
is higher than the session
BUS
valid comparator threshold. This status bit indicates that
a data transfer session is valid. The session_end com-
parator sets sess_end to 1 if V
is higher than the
BUS
V
BUS
Level Shifters
Internal level shifters allow the system-side interface to
run at logic-supply voltages as low as +1.65V. Interface
logic signals are referenced to the voltage applied to
VBUS_VLD
V
TH-VBUS
the logic-supply voltage, V .
L
SESS_VLD
SESS_END
Charge Pump
V
TH-SESS_VLD
The MAX3301E/MAX3302E’s OTG-compliant charge
pump operates with +3V to +4.5V input supply voltages
CC
(V ) and supplies a +4.8V to +5.25V OTG-compatible
V
TH-SESS_END
output on V
while sourcing the 8mA or greater out-
BUS
put current that an A device is required to supply.
Connect a 0.1µF flying capacitor between C+ and C-.
Bypass V
to GND with a 1µF to 6.5µF capacitor, in
Figure 12. Comparator Network Diagram
BUS
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ ±3
USB On-the-Go Transceivers and Charge Pumps
session end comparator threshold. Figure 12 shows the
level-detector comparators. The interrupt-enable regis-
ters (Tables 12 and 13) determine whether a falling or
•
•
•
Discharge V
through a resistor
BUS
Provide power-on or receive power from V
BUS
Charge V
through a resistor
BUS
rising edge of V
asserts these status bits.
BUS
The OTG supplement allows an A device to turn V
BUS
ID_IN
off when the bus is not being used to conserve power.
The USB OTG specification defines an ID input that
determines which dual-role device is the default host.
An OTG cable connects ID to ground in the connector
of one end and is left unconnected in the other end.
Whichever dual-role device receives the grounded end
becomes the A device. The MAX3301E/MAX3302E pro-
vide an internal pullup resistor on ID_IN. Internal com-
parators detect if ID_IN is grounded or left floating.
The B device can issue a request that a new session be
started using SRP. The B device must discharge V
BUS
to a level below the session-end threshold (0.8V) to
ensure that no session is in progress before initiating
SRP. Setting bit 6 of control register 2 to 1, discharges
V
to GND through a 5ꢀΩ current-limiting resistor.
BUS
When V
has discharged, the resistor is removed
BUS
from the circuit by resetting bit 6 of control register 2.
An OTG A device is required to supply power on V
.
Interrupt Logic
When OTG events require action, the MAX3301E/
MAX3302E provide an interrupt output signal on INT.
Alternatively, OE/INT can be configured to act as an
interrupt output while the device operates in USB sus-
pend mode. Program INT and OE/INT as open-drain or
push-pull interrupts with irq_mode (bit 1 of special-func-
tion register 2, see Tables 15 and 16).
BUS
from
The MAX3301E/MAX3302E provide power to V
BUS
V
or from the internal charge pump. Set bit 5 in control
CC
register 2 to 1 in both cases. Bit 5 in control register 2
controls a current-limited switch, preventing damage to
the device in the event of a V
short circuit.
BUS
An OTG B device (peripheral mode) can request a ses-
sion using SRP. One of the steps in implementing SRP
requires pulsing V
high for a controlled time. A 930Ω
BUS
V
Power Control
BUS
resistor limits the current according to the OTG specifi-
cation. Pulse V through the pullup resistor by assert-
V
is a dual-function port that powers the USB bus
BUS
BUS
and/or provides a power source for the internal linear reg-
ulator. The V power-control blocꢀ performs the various
ing bit 7 of control register 2. Prior to pulsing V
(bit
BUS
BUS
7), a B device first connects an internal pulldown resis-
switching functions required by an OTG dual-role device.
These actions are programmed by the system logic using
bits 5 to 7 of control register 2 (see Table 8) to:
tor to discharge V
below the session-end threshold.
BUS
The discharge current is limited by the 5ꢀΩ resistor and
set by bit 6 of control register 2. An OTG A device must
Table ±. Functional Bloc5s Enabled During Specific Operating Modes
sessꢀend
COMP
sess ꢀvld
COMP
vbusꢀ vld
COMP
crꢀint
COMP
dpꢀhi
COMP COMP
dmꢀhi
DIFF
RX
SE
RX
2
MODE
I C IDꢀIꢁ
TRM
X
TX
X
Shutdown1
✓
✓
✓
✓
X
✓
✓
✓
X
X
✓
✓
✓
X
X
X
✓
✓
✓
X
✓
✓
✓
X
X
X
✓
X
Interrupt
X
X
X
X
X
X
Shutdown2
Suspend3
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Normal
Operating
✓
✓ = Enabled.
X = Disabled.
1. For the MAX3301E, enter shutdown mode by writing a 1 to sdwn (bit 0 of special-function register 2). For the MAX3302E, enter
shutdown mode by writing a 0 to sdwn (bit 0 of special-function register 2).
2. Enter interrupt shutdown mode by writing a 1 to int_sdwn (bit 0 of special-function register 1).
3. Enter suspend mode by writing a 1 to spd_susp_ctl (bit 1 of special-function register 1) and suspend (bit 1 of control register 1), or
by writing a 0 to spd_susp_ctl (bit 1 of special-function register 1) and driving SUS high.
±4 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
supply 5V power and at least 8mA on V
. Setting bit
this mode, OE/INT detects the same interrupts as INT.
Set irq_mode (bit 1 in special-function register 2, see
Tables 15 and 16) to 0 to program OE/INT as an open-
drain interrupt output. Set irq_mode to 1 to configure
OE/INT as a push-pull interrupt output.
BUS
charge pump.
5 of control register 2 turns on the V
BUS
Operating Modes
The MAX3301E/MAX3302E have four operating modes to
2
optimize power consumption. Only the I C interface
remains active in shutdown mode, reducing supply cur-
RCV
RCV monitors D+ and D- when receiving data. RCV is a
logic 1 for D+ high and D- low. RCV is a logic 0 for D+
low and D- high. RCV retains its last valid state when D+
and D- are both low (single-ended zero, or SE0). RCV
asserts low in suspend mode. Table 4 shows the state
of RCV.
2
rent to 1µA. The I C interface, the ID_IN port, and the
session-valid comparator all remain active in interrupt
shutdown mode. RCV asserts low in suspend mode; how-
ever, all other circuitry remains active. Table 1 lists the
active blocꢀs’ power in each of the operating modes.
Applications Information
SPD
Use hardware or software to control the slew rate of the
D+ and D- terminals. The SPD input sets the slew rate of
the MAX3301E/MAX3302E when spd_susp_ctl (bit 1 in
special-function register 1, see Table 14) is 0. Drive SPD
low to select low-speed mode (1.5Mbps). Drive SPD
high to select full-speed mode (12Mbps). Alternatively,
when spd_susp_ctl (bit 1 of special-function register 1)
is 1, software controls the slew rate. The SPD input is
ignored when using software to control the data rate.
The speed bit (bit 0 of control register 1, see Table 7)
sets the slew rate when spd_susp_ctl = 1.
Data Transfer
Transmitting Data to the USB
The MAX3301E/MAX3302E transceiver features two
modes of transmission: DAT_SE0 or VP_VM (see Table 3).
Set the transmitting mode with dat_se0 (bit 2 in control
register 1, see Table 7). In DAT_SE0 mode with OE/INT
low, DAT_VP specifies data for the differential transceiv-
er, and SE0_VM forces D+/D- to the single-ended zero
(SE0) state. In VP_VM mode with OE/INT low, DAT_VP
drives D+, and SE0_VM drives D-. The differential
receiver determines the state of RCV.
Receiving Data from the USB
The MAX3301E/MAX3302E transceiver features two
modes of receiving data: DAT_SE0 or VP_VM (see
Table 4). Set the receiving mode with dat_se0 (bit 2 in
control register 1, see Table 7). In DAT_SE0 mode with
OE/INT high, DAT_VP is the output of the differential
receiver and SE0_VM indicates that D+ and D- are both
logic-low. In VP_VM mode with OE/INT high, DAT_VP
provides the input logic level of D+ and SE0_VM pro-
vides the input logic level of D-. The differential receiver
determines the state of RCV. VP and VM echo D+ and
D-, respectively.
SUS
Use hardware or software to control the suspend mode
of the MAX3301E/MAX3302E. Set spd_susp_ctl (bit 1 of
special-function register 1, see Table 14) to 0 to allow
the SUS input to enable and disable the suspend mode
of the MAX3301E/MAX3302E. Drive SUS low for normal
operation. Drive SUS high to enable suspend mode.
RCV asserts low in suspend mode while all other circuit-
ry remains active.
Alternatively, when the spd_susp_ctl bit (bit 1 of special-
function register 1) is set to 1, software controls the sus-
pend mode. Set the suspend bit (bit 1 of control register
1, see Table 7) to 1 to enable suspend mode. Set the
suspend bit to 0 to resume normal operation. The SUS
input is ignored when using software to control suspend
mode. The MAX3301E/MAX3302E must be in full-speed
mode (SPD = high or speed = 1) to issue a remote
waꢀe-up from the device when in suspend mode.
OE/INT
OE/INT controls the direction of communication. OE/INT
can also be programmed to act as an interrupt output
when in suspend mode. The output-enable portion con-
trols the input or output status of DAT_VP/SE0_VM and
D+/D-. When OE/INT is a logic 0, DAT_VP and SE0_VM
function as inputs to the D+ and D- outputs in a method
depending on the status of dat_se0 (bit 2 in control reg-
ister 1). When OE/INT is a logic 1, DAT_VP and SE0_VM
indicate the activity of D+ and D-.
RESET
The active-low RESET input allows the MAX3301E/
MAX3302E to be asynchronously reset without cycling
the power supply. Drive RESET low to reset the internal
registers (see Tables 7–16 for the default power-up
states). Drive RESET high for normal operation.
OE/INT functions as an interrupt output when the
MAX3301E/MAX3302E is in suspend mode and
oe_int_en = 1 (bit 5 in control register 1, see Table 7). In
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ ±1
USB On-the-Go Transceivers and Charge Pumps
2-Wire I2C-Compatible Serial Interface
Table 2. Setting the Direction of Data
A register file controls the various internal switches and
Transfer in General-Purpose Buffer Mode
operating modes of the MAX3301E/MAX3302E through
a simple 2-wire interface operating at clocꢀ rates up to
400ꢀHz. This interface supports data bursting, where
multiple data phases can follow a single address phase.
DIRECTIOꢁ OF DATA
dplusꢀdir
dminusꢀ dir
TRAꢁSFER
DAT_VP → D+
SE0_VM → D-
0
0
1
1
0
1
0
1
UART Mode
Set uart_en (bit 6 in control register 1) to 1 to place the
MAX3301E/MAX3302E in UART mode. D+ transfers
data to DAT_VP and SE0_VM transfers data to D- in
UART mode.
DAT_VP → D+
SE0_VM ← D-
DAT_VP ← D+
SE0_VM → D-
General-Purpose Buffer Mode
Set gp_en (bit 7 in special-function register 1) and
dat_se0 (bit 2 in control register 1) to 1, set uart_en (bit 6
in control register 1) to 0, and drive OE/INT low to place
the MAX3301E/MAX3302E in general-purpose buffer
mode. Control the direction of data transfer with dmi-
nus_dir and dplus_dir (bits 3 and 4 of special-function
register 1, see Tables 2 and 14).
DAT_VP ← D+
SE0_VM ← D-
pullup resistor, typically 4.7ꢀΩ. The MAX3301E/
MAX3302E SCL line only operates as an input. SCL
requires a pullup resistor if there are multiple masters on
the 2-wire interface, or if the master in a single-master
system has an open-drain SCL output.
Serial Addressing
The MAX3301E/MAX3302E operate as a slave device
that sends and receives control and status signals
Each transmission consists of a start condition (see
Figure 14) sent by a master device, the MAX3301E/
MAX3302E 7-bit slave address (determined by the state
of ADD), plus an R/W bit (see Figure 15), a register
address byte, one or more data bytes, and a stop condi-
tion (see Figure 14).
2
through an I C-compatible 2-wire interface. The inter-
face uses a serial data line (SDA) and a serial clocꢀ line
(SCL) to achieve bidirectional communication between
master(s) and slave(s). A master (typically a microcon-
troller) initiates all data transfers to and from the
MAX3301E/MAX3302E and generates the SCL clocꢀ
that synchronizes the data transfer (Figure 13).
The MAX3301E/MAX3302E SDA line operates as both an
input and as an open-drain output. SDA requires a
SDA
t
BUF
t
SU: STA
t
SU: DAT
t
t
HD: DAT
LOW
t
t
SU: STO
HD: STA
SCL
t
HIGH
t
HD: STA
t
R
t
F
REPEATED START
CONDITION
START
CONDITION
STOP
START
CONDITION CONDITION
Figure 13. 2-Wire Serial-Interface Timing Details
±6 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
Table 3. Transmit Mode
COꢁTROL PIꢁ/BIT
IꢁPUT
OUTPUT
D+
MODE
DESCRIPTIOꢁ
SUS
0
GPꢀEꢁ
DATꢀSE0
DATꢀkP SE0ꢀkM
D-
1
0
0
0
0
0
1
1
1
0
0
0
0
0
1
1
OE/INT
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
0
0
1
0
1
0
1
0
0
0
1
0
1
0
Functional
DAT_SE0
0
USB functional mode
0
2
transceiver and I C interface
0
are fully functional
0
Functional
VP_VM
0
0
1
1
1
1
1
Suspend
USB suspend mode
1
1
1
Driver is Driver is
Hi-Z Hi-Z
1
0
0
0
1
1
X
X
X
X
X
X
Driver is Driver is
Receiving
See Table 4
Hi-Z
Hi-Z
General-
purpose
buffer
General-purpose buffer
mode
X
1
0
1
See Table 2
SDA
S
P
SCL
START
STOP
CONDITION
CONDITION
Figure 14. Start and Stop Conditions
R/W
ACK
1
0
0
A0
1
0
0
SDA
START
MSB
LSB
SCL
Figure 15. Slave Address
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ ±7
USB On-the-Go Transceivers and Charge Pumps
Table 4. Receive Mode
COꢁTROL PIꢁ/BIT
IꢁPUTS
OUTPUTS
MODE
SUS
(ꢁOTE 7)
GPꢀEꢁ OE/IꢁT DATꢀSE0 BIꢀDI D+ D-
DATꢀkP
SE0ꢀkM
RCk
kP
kM
Last value
of DAT_VP
Last value
of RCV
0
0
1
1
1
0
0
1
0
0
0
1
1
1
1
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
0
1
0
1
0
1
1
0
0
1
1
1
0
0
0
1
0
0
0
1
0
0
Functional
DAT_SE0
Undefined
Undefined
0
1
0
1
0
0
0
0
Last value
of RCV
0
0
1
0
1
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
1
0
1
0
1
0
1
1
0
0
1
1
1
0
1
0
1
0
1
0
1
1
0
0
1
1
1
Echo Echo
D+ D-
0
Functional
VP_VM
Undefined
0
0
0
0
General-
X
X
X
1
X
X
X
0
X
X
X
X
X
X
0
See Table 2
0
0
0
purpose buffer
Transmitting
(see Table 3)
—
—
Unidirectional
(transmitter
only)
ꢁote 7: Enter suspend mode by driving SUS high or by writing a 1 to suspend (bit 1 in control register 1), depending on the status of
spd_susp_ctl in special-function register 1.
X = Don’t care.
±8 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
Start and Stop Conditions
Both SCL and SDA assert high when the interface is not
busy. A master device signals the beginning of a trans-
mission with a start (S) condition by transitioning SDA
from high to low while SCL is high. The master issues a
stop (P) condition by transitioning SDA from low to high
while SCL is high. The bus is then free for another trans-
mission (see Figure 14).
an ACK when receiving an address or data by pulling
SDA low during the ninth clocꢀ period. When transmit-
ting data, the MAX3301E/MAX3302E wait for the receiv-
ing device to generate an ACK. Monitoring ACK allows
for detection of unsuccessful data transfers. An unsuc-
cessful data transfer occurs if a receiving device is busy
or if a system fault has occurred. In the event of an
unsuccessful data transfer, the bus master should reat-
tempt communication at a later time.
Bit Transfer
One data bit is transferred during each clocꢀ pulse. The
data on SDA must remain stable while SCL is high (see
Figure 16).
Slave Address
A bus master initiates communication with a slave
device by issuing a START condition followed by the 7-
bit slave address (see Figure 15). When idle, the
MAX3301E/MAX3302E wait for a START condition fol-
lowed by its slave address. The LSB of the address
word is the read/write (R/W) bit. R/W indicates whether
the master is writing to or reading from the
MAX3301E/MAX3302E (R/W = 0 selects the write con-
dition, R/W = 1 selects the read condition). After
receiving the proper address, the MAX3301E/
MAX3302E issue an ACK.
Acknowledge
The acꢀnowledge bit (ACK) is the 9th bit attached to
any 8-bit data word. ACK is always generated by the
receiving device. The MAX3301E/MAX3302E generate
SDA
The MAX3301E/MAX3302E have two possible addresses
(see Table 5). Address bits A6 through A1 are preset,
while a reset condition or an I2C general call address
loads the value of A0 from ADD. Connect ADD to GND to
SCL
set A0 to 0. Connect ADD to V to set A0 to 1. This allows
L
up to two MAX3301E’s or two MAX3302E’s to share the
same bus.
DATA LINE STABLE, CHANGE OF DATA
DATA VALID
ALLOWED
Write Byte Format
Writing data to the MAX3301E/MAX3302E requires the
transmission of at least 3 bytes. The first byte consists of
the MAX3301E/MAX3302E’s 7-bit slave address, fol-
lowed by a 0 (R/W bit). The second byte determines
which register is to be written to. The third byte is the
new data for the selected register. Subsequent bytes
are data for sequential registers. Figure 18 shows the
typical write byte format.
Figure 16. Bit Transfer
START
CONDITION
CLOCK PULSE FOR ACKNOWLEDGEMENT
1
2
8
9
SCL
SDA BY
TRANSMITTER
Read Byte Format
Reading data from the MAX3301E/MAX3302E requires
the transmission of at least 3 bytes. The first byte con-
sists of the MAX3301E/MAX3302E’s slave address, fol-
lowed by a 0 (R/W bit). The second byte selects the
register from which data is read. The third byte consists
S
SDA BY
RECEIVER
Figure 17. Acknowledge
SLAVE ADDRESS
(7 BITS)
REGISTER ADDRESS
(8 BITS)
DATA
(8 BITS)
S
R/W
0
A
A
A
P
A6 A5 A4 A3 A2 A1 A0
MSB
LSB
MSB
LSB
Figure 18. Write Byte Format
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ ±9
USB On-the-Go Transceivers and Charge Pumps
SLAVE ADDRESS
(7 BITS)
REGISTER ADDRESS
(8 BITS)
S
R/W
0
A
0
A
0
A6
A5
A4
A3
A2
A1
A0
MSB
LSB
SLAVE ADDRESS
(7 BITS)
DATA
(8 BITS)
RS
NA
P
0
R/W
A
0
A6 A5 A4 A3 A2 A1 A0
1
MSB
LSB
1
Figure 19. Read Byte Format
R/W: Read/write (R/W = 1: read; R/W = 0: write)
S: Start condition
A: Acꢀnowledge bit from the slave
NA: Not-acꢀnowledged bit from the master
Blanꢀ: Master transmission
RS: Repeated start condition
P: Stop condition
SLAVE ADDRESS
REGISTER ADDRESS (K)
(8 BITS)
DATA (K)
(8 BITS)
S
R/W
0
A
A
A
P
(7 BITS)
A6
A5
A4
A3
A2
A1
A0
MSB
LSB
A
MSB
LSB
A
DATA (K+1)
(8 BITS)
DATA (K+2)
(8 BITS)
DATA (K+N)
(8 BITS)
A
MSB
LSB
MSB
LSB
MSB
LSB
MAX3301E/MAX3302E RECOGNIZES
ITS ADDRESS
MAX3301E/MAX3302E SENDS
AN ACK
SLAVE ADDRESS
(7 BITS)
UNSUPPORTED REGISTER ADDRESS (K)
(8 BITS)
DATA (K)
(8 BITS)
S
A
NA
R/W
0
A
A6
A5 A4 A3
A2 A1 A0
MSB
LSB
MSB
LSB
MAX3301E/MAX3302E RECOGNIZES A WRITE TO AN
UNSUPPORTED LOCATION, THEN SENDS A NACK
Figure 20. Burst-Mode Write Byte Format
of the MAX3301E/MAX3302E’s slave address, followed
by a 1 (R/W bit). The master then reads one or more
bytes of data. Figure 19 shows the typical read byte
format.
address and the MAX3301E/MAX3302E return an
acꢀnowledge bit. The master writes a data byte to the
selected register and receives an acꢀnowledge bit if a
supported register address has been chosen. The reg-
ister address increments and is ready for the master to
send the next data byte. The MAX3301E/MAX3302E
send an acꢀnowledge bit after each data byte. If an
unsupported register is selected, the MAX3301E/
MAX3302E send a NACK to the master and the register
index does not increment (see Figure 20).
Burst-Mode Write Byte Format
The MAX3301E/MAX3302E allow a master device to
write to sequential registers without repeatedly sending
the slave address and register address each time. The
master first sends the slave address, followed by a 0 to
write data to the MAX3301E/MAX3302E. The
MAX3301E/MAX3302E send an acꢀnowledge bit bacꢀ
to the master. The master sends the 8-bit register
20 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
SLAVE ADDRESS
(7 BITS)
REGISTER ADDRESS (K)
(8 BITS)
S
R/W
0
A
A
P
A6 A5 A4 A3 A2 A1 A0
MSB
MSB
LSB
SLAVE ADDRESS
(7 BITS)
DATA (K)
(8 BITS)
DATA (K+1)
(8 BITS)
S
R/W
1
A
A
A
P
A6 A5 A4 A3 A2 A1 A0
LSB
A
MSB
LSB
NA
DATA (K+2)
(8 BITS)
DATA (K+3)
(8 BITS)
DATA (K+N)
(8 BITS)
A
MSB
LSB
MSB
LSB
MSB
LSB
MAX3301E/MAX3302E RECOGNIZE
THEIR ADDRESS
MAX3301E/MAX3302E SENDS
AN ACK
SLAVE ADDRESS
(7 BITS)
UNSUPPORTED REGISTER ADDRESS (K)
(8 BITS)
S
S
R/W
0
A
A
A
A
P
A6 A5 A4 A3 A2 A1 A0
MSB
MSB
LSB
LSB
SLAVE ADDRESS
(7 BITS)
UNSUPPORTED REGISTER ADDRESS (K)
(8 BITS) — ALL 0's RETURNED
R/W
1
A6 A5 A4 A3 A2 A1 A0
ACK FROM MASTER
Figure 21. Burst-Mode Read Byte Format
2
Table 1. I C Slave Address Map
ADDRESS BITS
ADD IꢁPUT
A
6
A
5
A
4
A
3
A
2
A
1
A
0
GND (0)
V (1)
0
1
0
1
1
0
0
0
1
0
1
1
0
1
L
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 2±
USB On-the-Go Transceivers and Charge Pumps
Table 6. Register Map
REGISTER
Vendor ID
Product ID
MEMORY ADDRESS
00h, 01h
DESCRIPTIOꢁ
Read only. The contents of registers 00h and 01h are 6Ah and 0Bh, respectively.
Read only. The contents of registers 02h and 03h are 01h and 33h, respectively.
02h, 03h
04h (set)
05h (clear)
Control 1
Control 2
Sets operating modes, maximum data rate, and direction of data transfer.
06h (set)
07h (clear)
Controls D+/D- pullup/pulldown resistor connections, ID_IN state, and V
behavior.
BUS
Interrupt source
Unused*
08h (read)
09h
Read only.
Not used.
0Ah (set)
0Bh (clear)
Interrupt latch
Indicates which interrupts have occurred.
Enables interrupts for high-to-low transitions.
Interrupt-enable
Falling edge
0Ch (set)
0Dh (clear)
Interrupt-enable
Rising edge
0Eh (set)
0Fh (clear)
Enables interrupts for low-to-high transitions.
MAX3301E: Not used.
MAX3302E: Alternate register addresses for special-function register 2. This
register is also accessible from 16h and 17h.
Unused*/Special
Function 2
10h (set)
11h (clear)
12h (set)
13h (clear)
Enables hardware/software control of the MAX3301E's behavior, interrupt activity,
and operating modes.
Special function 1
Revision ID
14h, 15h
Read only. The contents of registers 14h and 15h are 77h and 41h, respectively.
16h (set)
17h (clear)
Sets operating modes, INT output configuration, D+/D- behavior in audio mode,
and TRM source.
Special function 2
Unused*
18h–Fh
Not used.
*When writing to an unused register, the device generates a NACK and the register index does not increment.
an unsupported register address is encountered, the
MAX3301E/MAX3302E send a byte of zeros.
Burst-Mode Read Byte Format
The MAX3301E/MAX3302E allow a master device to read
data from sequential registers with the burst-mode read
byte protocol (see Figure 21). The master device first
sends the slave address, followed by a 0. The
MAX3301E/MAX3302E then sends an acꢀnowledge bit.
Next, the master sends the register address to the
MAX3301E/MAX3302E, which then generates another
acꢀnowledge bit. The master then sends a stop (P) con-
dition to the MAX3301E/MAX3302E. Next, the master
sends a start condition, followed by the MAX3301E/
MAX3302E’s slave address, and then a 1 to indicate a
read command. The MAX3301E/MAX3302E then sends
data to the master device, one byte at a time. The master
sends an acꢀnowledge bit to the MAX3301E/ MAX3302E
after each data byte, and the register address of the
MAX3301E/MAX3302E increments after each byte. This
continues until the master sends a stop (P) condition. If
Registers
Control Registers
There are two read/write control registers. Control regis-
ter 1 (Table 7) sets operating modes, sets the data rate,
and controls the direction of data transfer. Control regis-
ter 2 (Table 8) connects the D+/D- pullup or pulldown
resistors, sets the V
charge/discharge conditions,
BUS
and grounds ID_IN. The control registers have two
addresses that implement write-one-set and write-one-
clear features for each of these registers. Writing a 1 to
the set address sets that bit to 1. Writing a 1 to the clear
address resets that bit to 0. Writing a 0 to either address
has no effect on the bits.
22 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
Table 7. Control Register ± Description (Write to Address 04h to Set, Write to Address
01h to Clear)
kALUE AT
POWER-UP
BIT ꢁUMBER
SYMBOL
OPERATIOꢁ
Set to 0 for low-speed (1.5Mbps) mode. Set to 1 for full-speed (12Mbps) mode. This
bit changes the data rate only if spd_susp_ctl = 1 in special-function register 1.
0
1
speed
0
Set to 0 for normal operating mode. Set to 1 for suspend mode. This bit changes
the operating mode only if spd_susp_ctl = 1 in special-function register 1.
suspend
0
2
3
dat_se0
—
Set to 0 for VP_VM USB mode. Set to 1 for DAT_SE0 USB mode.
Not used.
0
0
Enables the transceiver (when configured as an A device) to connect its pullup
resistor if the B device disconnect is detected during HNP. Set to 0 to disable this
feature. Set to 1 to enable this feature.
4
5
bdis_acon_en
oe_int_en
0
0
Set to 0 to disable the interrupt output circuitry of OE/INT. Set to 1 to enable the
interrupt output circuitry of OE/INT.
Set to 0 to disable UART mode. Set to 1 to enable UART mode. This bit overrides
the settings of dminus_dir, dplus_dir, and gp_en bits.
6
7
uart_en
—
0
0
Not used.
Table 8. Control Register 2 Description (Write to Address 06h to Set, Write to Address
07h to Clear)
kALUE AT
POWER-UP
BIT ꢁUMBER
SYMBOL
OPERATIOꢁ
0
1
dp_pullup
dm_pullup
Set to 0 to disconnect the pullup resistor to D+. Set to 1 to connect the pullup resistor to D+.
Set to 0 to disconnect the pullup resistor to D-. Set to 1 to connect the pullup resistor to D-.
0
0
Set to 0 to disconnect the pulldown resistor to D+. Set to 1 to connect the pulldown
resistor to D+.
2
3
dp_pulldown
dm_pulldown
1
1
Set to 0 to disconnect the pulldown resistor to D-. Set to 1 to connect the pulldown
resistor to D-.
4
5
id_pulldown Set to 0 to allow ID_IN to float. Set to 1 to connect ID_IN to GND.
0
0
vbus_drv
Set to 0 to turn V
off. Set to 1 to drive V
through a low impedance (see Note 8).
BUS
BUS
Set to 0 to disconnect the V
discharge resistor (see Note 8).
discharge resistor. Set to 1 to connect the V
BUS
BUS
6
7
vbus_dischrg
0
0
Set to 0 to disconnect the V
charge resistor (see Note 8).
charge resistor. Set to 1 to connect the V
BUS
BUS
vbus_chrg
ꢁote 8: To prevent a high-current state where the transceiver is both sourcing current to V
and sinꢀing current from V , the fol-
BUS
BUS
lowing logic is used to set bits 5, 6, and 7 of control register 2:
•
•
Setting vbus_drv clears vbus_dischrg and vbus_chrg
Setting vbus_dischrg clears vbus_drv and vbus_chrg, unless vbus_drv is set with the same command, in which case vbus_drv
clears the other bits
•
Setting vbus_chrg clears vbus_drv and vbus_dischrg, unless either of these bits are set with the same command, as shown in Table 9
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 23
USB On-the-Go Transceivers and Charge Pumps
Table 9. k
Control Logic
BUS
SET COMMAꢁD (ADDRESS 06h)
BEHAkIOR OF MAX330±E/MAX3302E
vbusꢀdrv
vbusꢀdischrg
vbusꢀchrg
vbusꢀdrv
vbusꢀdischrg
vbusꢀchrg
1
X
1
0
0
X
X
1
0
1
0
0
0
0
1
0
0
0
0
0
1
Not affected
Not affected
Not affected
X = Don’t care.
Table ±0. Interrupt Source Register (Address 08h is Read Only)
BIT ꢁUMBER
SYMBOL
vbus_vld
sess_vld
COꢁTEꢁTS
valid comparator threshold.
0
1
Logic 1 if V
Logic 1 if V
> V
BUS
BUS
BUS
> session valid comparator threshold.
Logic 1 if V > dp_hi comparator threshold (D+ assertion during data line pulsing through
D+
SRP method).
2
3
4
5
6
dp_hi
id_gnd
Logic 1 if V
< 0.1 x V
.
CC
ID_IN
Logic 1 if V > dm_hi comparator threshold (D- assertion during data line pulsing through SRP
D-
method).
dm_hi
id_float
bdis_acon
Logic 1 if V
> 0.9 x V
.
CC
ID_IN
Logic 1 if bdis_acon_en = 1 and the MAX3301E/MAX3302E assert dp_pullup after detecting a
B device disconnect during HNP.
Logic 1 if V
< sess_end comparator threshold, or if V > cr_int comparator threshold (0.4V to
D+
BUS
7
cr_int_sess_end
0.6V), depending on the value of int_source (bit 5 of special-function register 1, see Table 14).
Interrupt Registers
the set address sets that bit to 1. Writing a 1 to the clear
address resets that bit to 0. Writing a 0 to either
address has no effect on the bits. Special-function reg-
ister 1 determines whether hardware or software con-
trols the maximum data rate and suspend behavior,
sets the direction of data transfer, and toggles general-
purpose buffer mode. Special-function register 2
enables shutdown mode, configures the interrupt out-
put as open-drain or push-pull, sets the TRM power
source, and controls the D+/D- connections for audio
mode. Table 15 depicts the special-function register 2
for the MAX3301E and Table 16 depicts the special-
function register 2 for the MAX3302E.
Four registers control all interrupt behavior of the
MAX3301E/MAX3302E. A source register (Table 10)
indicates the current status of the various interrupt
sources. An interrupt latch register (Table 11) indicates
which interrupts have occurred. An interrupt-enable low
and interrupt-enable high register enable interrupts on
rising or falling (or both) transitions. Tables 10–13 pro-
vide the bit configurations for the various interrupt regis-
ters. The interrupt latch, interrupt-enable low, and
interrupt-enable high registers have two addresses that
implement write- one-set and write-one-clear features for
each of these registers. Writing a 1 to the set address
sets that bit to 1. Writing a 1 to the clear address resets
that bit to 0. Writing a 0 to either address has no effect
on the bits.
The MAX3301E powers up in its lowest power state and
must be turned on by setting the sdwn bit to 0. The
MAX3302E powers up in the operational, VP/VM USB
mode. This allows a µP to use the USB port for power-
on boot-up, without having to access I2C. To put the
MAX3302E into low-power shutdown, set the sdwn bit
to 0. The MAX3302E also has special-function register
2 mapped to two I2C register addresses. In the
MAX3302E, special-function register 2 can be
Special-Function Registers
Tables 14, 15, and 16 describe the special-function
registers. The special-function registers have two
addresses that implement write-one-set and write-one-
clear features for each of these registers. Writing a 1 to
24 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
Table ±±. Interrupt Latch Register Description (Write to Address 0Ah to Set, Write to
Address 0Bh to Clear)
kALUE AT
POWER-UP
BIT ꢁUMBER
SYMBOL
vbus_vld
sess_vld
dp_hi
COꢁTEꢁTS
vbus_vld asserts if a transition occurs on this condition and the appropriate
interrupt-high or interrupt-low enable bit is set. See Tables 10, 12, and 13.
0
1
2
3
4
5
6
7
0
sess_vld asserts if a transition occurs on this condition and the appropriate
interrupt-high or interrupt-low enable bit is set. See Tables 10, 12, and 13.
0
0
0
0
0
0
0
dp_hi asserts if a transition occurs on this condition and the appropriate interrupt-
high or interrupt-low enable bit is set. See Tables 10, 12, and 13.
id_gnd asserts if a transition occurs on this condition and the appropriate interrupt-
high or interrupt-low enable bit is set. See Tables 10, 12, and 13.
id_gnd
dm_hi asserts if a transition occurs on this condition and the appropriate interrupt-
high or interrupt-low enable bit is set. See Tables 10, 12, and 13.
dm_hi
id_float asserts if a transition occurs on this condition and the appropriate interrupt-
high or interrupt-low enable bit is set. See Tables 10, 12, and 13.
id_float
bdis_acon asserts if a transition occurs on this condition and the appropriate
interrupt-high or interrupt-low enable bit is set. See Tables 10, 12, and 13.
bdis_acon
cr_int_sess_end
cr_int_sess_end asserts if a transition occurs on this condition and the appropriate
interrupt-high or interrupt-low enable bit is set. See Tables 10, 12, and 13.
Table ±2. Interrupt-Enable Low Register (Write to Address 0Ch to Set, Write to Address
0Dh to Clear)
kALUE AT
POWER-UP
BIT ꢁUMBER
SYMBOL
vbus_vld
sess_vld
dp_hi
COꢁTEꢁTS
Set to 0 to disable the vbus_vld interrupt for a high-to-low transition. Set to 1 to
enable the vbus_vld interrupt for a high-to-low transition. See Tables 10 and 11.
0
1
2
3
4
5
6
0
Set to 0 to disable the sess_vld interrupt for a high-to-low transition. Set to 1 to
enable the sess_vld interrupt for a high-to-low transition. See Tables 10 and 11.
0
0
0
0
0
0
Set to 0 to disable the dp_hi interrupt for a high-to-low transition. Set to 1 to
enable the dp_hi interrupt for a high-to-low transition. See Tables 10 and 11.
Set to 0 to disable the id_gnd interrupt for a high-to-low transition. Set to 1 to
enable the id_gnd interrupt for a high-to-low transition. See Tables 10 and 11.
id_gnd
Set to 0 to disable the dm_hi interrupt for a high-to-low transition. Set to 1 to
enable the dm_hi interrupt for a high-to-low transition. See Tables 10 and 11.
dm_hi
Set to 0 to disable the id_float interrupt for a high-to-low transition. Set to 1 to
enable the id_float interrupt for a high-to-low transition. See Tables 10 and 11.
id_float
Set to 0 to disable the bdis_acon interrupt for a high-to-low transition. Set to 1 to
enable the bdis_acon interrupt for a high-to-low transition. See Tables 10 and 11.
bdis_acon
Set to 0 to disable the cr_int_sess_end interrupt for a high-to-low transition.
Set to 1 to enable the cr_int_sess_end interrupt for a high-to-low transition.
See Tables 10 and 11.
7
cr_int_sess_end
0
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 21
USB On-the-Go Transceivers and Charge Pumps
Table ±3. Interrupt-Enable High Register (Write to Address 0Eh to Set, Write to Address
0Fh to Clear)
kALUE AT
POWER-UP
BIT ꢁUMBER
SYMBOL
vbus_vld
sess_vld
dp_hi
COꢁTEꢁTS
Set to 0 to disable the vbus_vld interrupt for a low-to-high transition. Set to 1 to
enable the vbus_vld interrupt for a low-to-high transition. See Tables 10 and 11.
0
1
2
3
4
5
6
0
Set to 0 to disable the sess_vld interrupt for a low-to-high transition. Set to 1 to
enable the sess_vld interrupt for a low-to-high transition. See Tables 10 and 11.
0
0
0
0
0
0
Set to 0 to disable the dp_hi interrupt for a low-to-high transition. Set to 1 to
enable the dp_hi interrupt for a low-to-high transition. See Tables 10 and 11.
Set to 0 to disable the id_gnd interrupt for a low-to-high transition. Set to 1 to
enable the id_gnd interrupt for a low-to-high transition. See Tables 10 and 11.
id_gnd
Set to 0 to disable the dm_hi interrupt for a low-to-high transition. Set to 1 to
enable the dm_hi interrupt for a low-to-high transition. See Tables 10 and 11.
dm_hi
Set to 0 to disable the id_float interrupt for a low-to-high transition. Set to 1 to
enable the id_float interrupt for a low-to-high transition. See Tables 10 and 11.
id_float
Set to 0 to disable the bdis_acon interrupt for a low-to-high transition. Set to 1 to
enable the bdis_acon interrupt for a low-to-high transition. See Tables 10 and 11.
bdis_acon
Set to 0 to disable the cr_int_sess_end interrupt for a low-to-high transition.
Set to 1 to enable the cr_int_sess_end interrupt for a low-to-high transition.
See Tables 10 and 11.
7
cr_int_sess_end
0
addressed at I2C register location 10h, 11h (as well as
locations 16h, 17h) to support USB OTG SIE implemen-
tations that are limited to I2C register addresses
between 0h and 15h.
External Components
External Resistors
Two external resistors (27.4Ω 1%) are required for
USB connection. Install one resistor in series between
D+ of the MAX3301E/MAX3302E and D+ of the USB
connector. Install the other resistor in series between D-
of the MAX3301E/MAX3302E and D- of the USB con-
nector (see the Typical Operating Circuit).
ID and Manufacturer Register Address Map
Table 17 provides the contents of the ID registers of the
MAX3301E/MAX3302E. Addresses 00h and 01h com-
prise the vendor ID registers. Addresses 02h and 03h
comprise the product ID registers. Addresses 14h and
15h comprise the revision ID registers.
External Capacitors
Five external capacitors are recommended for proper
operation. Install all capacitors as close to the device as
Audio Car Kit
Many cell phones are required to interface to car ꢀits.
Depending upon the car ꢀit, the interface to the phone
may be required to support any or all of the following
functions:
possible. Decouple V to GND with a 0.1µF ceramic
L
CC
capacitor. Bypass V
to GND with a 1µF ceramic
capacitor. Bypass TRM to GND with a 1µF (or greater)
ceramic or plastic capacitor. Connect a 100nF flying
capacitor between C+ and C- for the charge pump (see
•
•
•
•
Audio input
the Typical Operating Circuit). Bypass V
to GND
BUS
Audio output
Charging
with a 1µF to 6.5µF ceramic capacitor in accordance
with USB OTG specifications.
Control and status
ESD Protection
To protect the MAX3301E/MAX3302E against ESD, D+,
D+ and D- of the MAX3301E/MAX3302E go to a high-
impedance state when in shutdown mode, allowing
external signals (including audio) to be multiplexed onto
these lines.
D-, ID_IN, and V
, have extra protection against stat-
BUS
ic electricity to protect the device up to 15ꢀV. The ESD
structures withstand high ESD in all states; normal oper-
26 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
Table ±4. Special-Function Register ± (Write to Address ±2h to Set, Write to Address ±3h
to Clear)
kALUE AT
POWER-UP
BIT ꢁUMBER
SYMBOL
COꢁTEꢁTS
2
Set to 0 for normal operation. Set to 1 to enter interrupt shutdown mode. The I C
interface and interrupt sources remain active, while all other circuitry is off.
0
int_sdwn
0
Set to 0 to control the MAX3301E/MAX3302E behavior with SPD and SUS. Set to 1 to
control the MAX3301E/MAX3302E behavior with the speed and suspend bits in control
register 1 (see Table 7).
1
2
3
4
5
spd_susp_ctl
bi_di
0
1
0
0
0
Set to 0 to transfer data from DAT_VP and SE0_VM to D+ and D-, respectively.
DAT_VP and SE0_VM are always inputs when this bit is 0. Set to 1 to control the
direction of data transfer with OE/INT.
Set to 0 to transfer data from SE0_VM to D-. Set to 1 to transfer data from D- to
SE0_VM. Ensure that gp_en = 1, dat_se0 = 1, uart_en = 0, and OE/INT = low to
activate this function.
dminus_dir
dplus_dir
int_source
Set to 0 to transfer data from DAT_VP to D+. Set to 1 to transfer data from D+ to
DAT_VP. Ensure that gp_en = 1, dat_se0 = 1, uart_en = 0, and OE/INT = low to
activate this function.
Set to 0 to use cr_int as the interrupt source for bit 7 of the interrupt source
register. Set to 1 to use sess_end as the interrupt source for bit 7 of the interrupt
source register (see Table 10).
Session end comparator status (read only). Sess_end = 0 when V
>
BUS
6
7
sess_end
gp_en
—
0
sess_end threshold. Sess_end = 1 when V
< sess_end threshold.
BUS
Set to 0 to disable general-purpose buffer mode. Set to 1 to enable general-
purpose buffer mode.
ꢁote: sess_end value at power-up is dependent on the voltage at V
.
BUS
Table ±1. MAX330±E Special-Function Register 2 (Write to Address ±6h to Set, Write to
Address ±7h to Clear)
kALUE AT
POWER-UP
BIT ꢁUMBER
SYMBOL
sdwn
COꢁTEꢁTS
2
Set to 0 for normal operation. Set to 1 to enable shutdown mode. Only the I C
interface remains active in shutdown.
0
1
2
1
Set to 0 to set INT and OE/INT as open-drain outputs. Set to 1 to set INT and
OE/INT as push-pull outputs.
irq_mode
0
0
Set to 0 to leave the D+/D- single-ended receiver inputs connected. Set to 1 to
disconnect the D+/D- receiver inputs to reduce power consumption in audio mode.
xcvr_input_disc
3
reg_sel
—
Set to 0 to power TRM from V . Set to 1 to power TRM from V
CC
.
0
BUS
4–7
Reserved. Set to 0 for normal operation.
0000
ation, suspend mode, interrupt shutdown, and shut-
down. For the ESD structures to worꢀ correctly, connect
a 1µF or greater capacitor from TRM to GND and from
•
•
15ꢀV using the Human Body Model
6ꢀV using the IEC 61000-4-2 Contact Discharge
Method
V
to GND. ESD protection can be tested in various
BUS
•
10ꢀV using the IEC 61000-4-2 Air-Gap Discharge
Method
ways; the D+, D-, ID_IN, and V
inputs/outputs are
BUS
characterized for protection to the following limits:
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 27
USB On-the-Go Transceivers and Charge Pumps
Table ±6. MAX3302E Special-Function Register 2 (Write to Address ±0h or ±6h to Set,
Write to Address ±±h or ±7h to Clear)
kALUE AT
POWER-UP
BIT ꢁUMBER
SYMBOL
COꢁTEꢁTS
2
Set to 0 to enable shutdown mode. Set to 1 for normal operation. Only the I C
interface remains active in shutdown.
0
1
2
sdwn
1
Set to 0 to set INT and OE/INT as open-drain outputs. Set to 1 to set INT and
OE/INT as push-pull outputs.
irq_mode
0
0
Set to 0 to leave the D+/D- single-ended receiver inputs connected. Set to 1 to
disconnect the D+/D- receiver inputs to reduce power consumption in audio mode.
xcvr_input_disc
3
reg_sel
—
Set to 0 to power TRM from V . Set to 1 to power TRM from V
CC
.
0
BUS
4–7
Reserved. Set to 0 for normal operation.
0000
test involves approaching the device with a charged
probe. The contact discharge method connects the
probe to the device before the probe is energized.
Figure 25 shows the IEC 61000-4-2 current waveform.
Table ±7. ID Registers
REGISTER
ADDRESS
COꢁTEꢁTS
6Ah
00h
01h
02h
03h
14h
15h
Vendor ID
0Bh
Layout Considerations
The MAX3301E/MAX3302E high operating frequency
maꢀes proper layout important to ensure stability and
maintain the output voltage under all loads. For best
performance, minimize the distance between the
bypass capacitors and the MAX3301E/MAX3302E. Use
symmetric trace geometry from D+ and D- to the USB
connector.
01h
Product ID
Revision ID
33h
77h
41h
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents
test setup, methodology, and results.
UCSP Applications Information
For the latest application details on UCSP construction,
dimensions, tape carrier information, PC board tech-
niques, bump-pad layout, and the recommended reflow
temperature profile, as well as the latest information on
reliability testing results, refer to the Application Note:
UCSP—A Wafer-Level Chip-Scale Package available on
Maxim’s website at www.maxim-ic.com/ucsp.
Human Body Model
Figure 22 shows the Human Body Model and Figure 23
shows the current waveform it generates when dis-
charged into a low impedance. This model consists of a
100pF capacitor charged to the ESD voltage of interest,
which is then discharged into the test device through a
1.5ꢀΩ resistor.
IEC 61000-4-2
The IEC 61000-4-2 standard covers ESD testing and
performance of finished equipment; it does not specifi-
cally refer to integrated circuits. The MAX3301E/
MAX3302E helps the user design equipment that meets
level 3 of IEC 61000-4-2, without the need for additional
ESD-protection components. The major difference
between tests done using the Human Body Model and
IEC 61000-4-2 is a higher peaꢀ current in IEC 61000-4-2,
due to the fact that series resistance is lower in the IEC
61000-4-2 model. Hence, the ESD-withstand voltage
measured to IEC 61000-4-2 is generally lower than that
measured using the Human Body Model. Figure 24
shows the IEC 61000-4-2 model. The Air-Gap Discharge
28 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
R
R
1MΩ
D
C
I
1.5kΩ
100%
DISCHARGE
RESISTANCE
CHARGE-CURRENT-
LIMIT RESISTOR
90%
HIGH-
VOLTAGE
DC
DEVICE
UNDER
TEST
C
100pF
STORAGE
CAPACITOR
s
SOURCE
Figure 22. Human Body ESD Test Modes
10%
t
t
R
= 0.7ns TO 1ns
I 100%
P
90%
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
I
r
30ns
60ns
AMPERES
Figure 25. IEC 61000-4-2 Current Waveform
36.8%
10%
0
Chip Information
TIME
0
t
RL
PROCESS: BiCMOS
t
DL
CURRENT WAVEFORM
Figure 23. Human Body Model Current Waveform
R
C
R
D
50MΩ to 100MΩ
330Ω
DISCHARGE
RESISTANCE
CHARGE-CURRENT-
LIMIT RESISTOR
HIGH-
VOLTAGE
DC
DEVICE
UNDER
TEST
C
s
150pF
STORAGE
CAPACITOR
SOURCE
Figure 24. IEC 61000-4-2 ESD Test Model
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 29
USB On-the-Go Transceivers and Charge Pumps
Pin Configurations
TOP VIEW
BOTTOM VIEW
MAX3301E/MAX3302E
24 23 22 21 20 19 18 17
SDA
GND
V
SUS
OE/INT
RCV
SPD
L
25
26
27
28
29
N.C.
VM
16 SUS
A
B
V
L
15
RESET
SCL
INT
TRM
N.C.
SPD
14
13
12
11
10
9
RCV
C-
ID_IN
VM
GND
D-
SE0_VM
DAT_VP
ADD
VP
MAX3301E
V
CC
C
D
E
N.C.
VP 30
BUS 31
C+ 32
OE/INT
SCL
V
CC
V
EXPOSED PADDLE
N.C.
C+
1
TRM
D+
V
V
CC
BUS
2
1
2
3
4
5
6
7
8
3
4
5
UCSP
(2.5mm x 2.5mm)
TQFꢁ
(5mm x 5mm)
TOP VIEW
21 20 19 18 17 16 15
14
13
VM 22
SUS
V
L
N.C. 23
12 SPD
24
25
26
27
28
TRM
RCV
11
10
9
V
CC
MAX3302E
VP
OE/INT
N.C.
V
BUS
C+
EXPOSED PADDLE
8
SCL
1
2
3
4
5
6
7
TQFꢁ
(4mm x 4mm)
30 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
Typical Operating Circuit
V
V
V
V
L
CC
1µF
0.1µF
*USB OTG SPECIFICATIONS LIMIT
THE TOTAL CAPACITANCE ON V
FROM 1µF (MIN) TO 6.5µF (MAX)
FOR A DUAL-ROLE DEVICE.
V
L(I/O)
L
BUS
CC
V
DAT_VP
SE0_VM
RCV
BUS
C
VBUS
*
4.7µF
27.4Ω
27.4Ω
V
BUS
D+
D-
VP
D+
D-
MAX3301E
MAX3302E
VM
OEV/INT
INT
ID_IN
ID
ASIC
GND
C+
RESET
SUS
OTG
CONNECTOR
C
0.1µF
FLYING
SPD
C-
SDA
SCL
ADD
TRM
GND
1µF
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 3±
USB On-the-Go Transceivers and Charge Pumps
Package Information
(The pacꢀage drawing(s) in this data sheet may not reflect the most current specifications. For the latest pacꢀage outline information,
go to www.maxim-ic.com/pac5ages.)
D2
D
b
0.10 M
C A B
C
L
D2/2
D/2
k
L
MARKING
AAAAA
E/2
E2/2
C
(NE-1) X
e
L
E2
E
PIN # 1 I.D.
0.35x45°
DETAIL A
e/2
PIN # 1
I.D.
e
(ND-1) X
e
DETAIL B
e
L
C
L
C
L
L1
L
L
e
e
0.10
C
A
0.08
C
C
A3
A1
PACKAGE OUTLINE,
16, 20, 28, 32, 40L THIN QFN, 5x5x0.8mm
1
-DRAWING NOT TO SCALE-
I
21-0140
2
32 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
Package Information (continued)
(The pacꢀage drawing(s) in this data sheet may not reflect the most current specifications. For the latest pacꢀage outline information,
go to www.maxim-ic.com/pac5ages.)
COMMON DIMENSIONS
EXPOSED PAD VARIATIONS
PKG.
16L 5x5
20L 5x5
28L 5x5
32L 5x5
40L 5x5
L
DOWN
BONDS
ALLOWED
D2
E2
exceptions
PKG.
SYMBOL MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX.
CODES
±0.15
MIN. NOM. MAX. MIN. NOM. MAX.
3.00 3.10 3.20 3.00 3.10 3.20
3.00 3.10 3.20 3.00 3.10 3.20
A
0.70 0.75 0.80 0.70 0.75 0.80 0.70 0.75 0.80 0.70 0.75 0.80 0.70 0.75 0.80
0.02 0.05 0.02 0.05 0.02 0.05 0.02 0.05 0.02 0.05
0.20 REF. 0.20 REF. 0.20 REF. 0.20 REF. 0.20 REF.
T1655-2
T1655-3
YES
NO
NO
**
**
**
**
A1
0
0
0
0
0
A3
b
T1655N-1 3.00 3.10 3.20 3.00 3.10 3.20
0.25 0.30 0.35 0.25 0.30 0.35 0.20 0.25 0.30 0.20 0.25 0.30 0.15 0.20 0.25
4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10
4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10
T2055-3
T2055-4
T2055-5
T2855-3
3.00 3.10 3.20 3.00 3.10 3.20
3.00 3.10 3.20 3.00 3.10 3.20
YES
NO
D
E
**
YES
3.15 3.25 3.35 3.15 3.25 3.35 0.40
e
0.80 BSC.
0.25
0.65 BSC.
0.25
0.50 BSC.
0.25
0.50 BSC.
0.25
0.40 BSC.
3.15 3.25 3.35 3.15 3.25 3.35
YES
YES
NO
**
**
**
k
-
-
-
-
-
-
-
-
0.25 0.35 0.45
T2855-4
T2855-5
2.60 2.70 2.80 2.60 2.70 2.80
2.60 2.70 2.80 2.60 2.70 2.80
3.15 3.25 3.35 3.15 3.25 3.35
L
0.30 0.40 0.50 0.45 0.55 0.65 0.45 0.55 0.65 0.30 0.40 0.50 0.40 0.50 0.60
L1
-
-
-
-
-
-
-
-
-
-
-
-
0.30 0.40 0.50
NO
YES
YES
T2855-6
T2855-7
**
**
N
ND
NE
16
4
4
20
5
5
28
7
7
32
8
8
40
10
10
2.80
2.60 2.70
2.60 2.70 2.80
T2855-8
3.15 3.25 3.35 3.15 3.25 3.35 0.40
WHHB
WHHC
WHHD-1
WHHD-2
-----
JEDEC
T2855N-1 3.15 3.25 3.35 3.15 3.25 3.35
NO
YES
NO
YES
NO
**
**
**
**
**
**
3.20
3.00 3.10 3.20
T3255-3
T3255-4
T3255-5
3.00 3.10
3.00 3.10 3.20 3.00 3.10 3.20
3.20
NOTES:
3.00 3.10
3.00 3.10 3.20
1. DIMENSIONING & TOLERANCING CONFORM TO ASME Y14.5M-1994.
2. ALL DIMENSIONS ARE IN MILLIMETERS. ANGLES ARE IN DEGREES.
3. N IS THE TOTAL NUMBER OF TERMINALS.
T3255N-1 3.00 3.10 3.20 3.00 3.10 3.20
T4055-1 3.20 3.30 3.40 3.20 3.30 3.40
YES
**SEE COMMON DIMENSIONS TABLE
4. THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL
CONFORM TO JESD 95-1 SPP-012. DETAILS OF TERMINAL #1 IDENTIFIER ARE
OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE INDICATED. THE TERMINAL #1
IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE.
5. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN
0.25 mm AND 0.30 mm FROM TERMINAL TIP.
6. ND AND NE REFER TO THE NUMBER OF TERMINALS ON EACH D AND E SIDE RESPECTIVELY.
7. DEPOPULATION IS POSSIBLE IN A SYMMETRICAL FASHION.
8. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS.
9. DRAWING CONFORMS TO JEDEC MO220, EXCEPT EXPOSED PAD DIMENSION FOR
T2855-3 AND T2855-6.
10. WARPAGE SHALL NOT EXCEED 0.10 mm.
11. MARKING IS FOR PACKAGE ORIENTATION REFERENCE ONLY.
12. NUMBER OF LEADS SHOWN ARE FOR REFERENCE ONLY.
13. LEAD CENTERLINES TO BE AT TRUE POSITION AS DEFINED BY BASIC DIMENSION "e", ±0.05.
PACKAGE OUTLINE,
16, 20, 28, 32, 40L THIN QFN, 5x5x0.8mm
2
-DRAWING NOT TO SCALE-
21-0140
I
2
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ 33
USB On-the-Go Transceivers and Charge Pumps
Package Information (continued)
(The pacꢀage drawing(s) in this data sheet may not reflect the most current specifications. For the latest pacꢀage outline information,
go to www.maxim-ic.com/pac5ages.)
PACKAGE OUTLINE,
12, 16, 20, 24, 28L THIN QFN, 4x4x0.8mm
1
E
21-0139
2
PACKAGE OUTLINE,
12, 16, 20, 24, 28L THIN QFN, 4x4x0.8mm
2
E
21-0139
2
34 ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
USB On-the-Go Transceivers and Charge Pumps
Package Information (continued)
(The pacꢀage drawing(s) in this data sheet may not reflect the most current specifications. For the latest pacꢀage outline information,
go to www.maxim-ic.com/pac5ages.)
PACKAGE OUTLINE, 5x5 UCSP
1
21-0096
H
1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 31
© 2006 Maxim Integrated Products
Printed USA
is a registered trademarꢀ of Maxim Integrated Products, Inc.
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