MAX3453EETE-T [MAXIM]
Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, MO-220WEED-2, TQFN-16;
| 型号： | MAX3453EETE-T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, MO-220WEED-2, TQFN-16 驱动 信息通信管理 接口集成电路 驱动器 |
| 文件： | 总19页 (文件大小：361K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-2924; Rev 1; 10/03
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
General Description
Features
The MAX3453E–MAX3456E 15kV ESD-protected USB-
compliant transceivers interface low-voltage ASICs with
USB devices. The devices fully comply with USB 1.1
and USB 2.0 when operating at full (12Mbps) and low
(1.5Mbps) speeds. The MAX3453E–MAX3456E operate
ꢀ
15kV ESD Protection on D+ and D-
ꢀ USB 1.1 and USB 2.0 (Low-Speed and Full-Speed)-
Compliant Transceivers
ꢀ Combined VP and VM Inputs/Outputs
with V as low as +1.65V, ensuring compatibility with
L
ꢀ +1.65V to +3.6V V Logic Supply Input for
L
low-voltage ASICs.
Interfacing with Low-Voltage ASICs
The MAX3453E–MAX3456E feature a logic-selectable
suspend mode that reduces current consumption to
less than 40µA. Integrated 15kV ESD protection pro-
tects the USB D+ and D- bidirectional bus connections.
ꢀ Enumerate Input Function (MAX3453E/MAX3454E)
ꢀ Powered from Li+ Battery as Low as +3.1V
(MAX3454E/MAX3456E)
The MAX3453E supports only full-speed (12Mbps)
operation. The MAX3453E/MAX3454E feature an inter-
nal 1.5kΩ USB pullup resistor and an enumeration func-
tion that allows devices to logically disconnect while
plugged in. The MAX3453E/MAX3455E provide a push-
pull bus-detect (BD) output that asserts high when
ꢀ V
Detection (MAX3453E/MAX3455E)
BUS
ꢀ Pin Compatible with Micrel MIC2550A (MAX3456E)
ꢀ Internal Pullup Resistor (MAX3453E/MAX3454E)
ꢀ No Power-Supply Sequencing Required
V
> +4.0V. The MAX3456E is pin compatible with
BUS
Micrel’s MIC2550A.
Ordering Information
The MAX3453E–MAX3456E operate over the extended
temperature range (-40°C to +85°C) and are available
in 14-pin TSSOP and 16-pin (3mm x 3mm) thin QFN
packages.
PART
TEMP RANGE
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
PIN-PACKAGE
14 TSSOP
MAX3453EEUD
MAX3453EETE
MAX3454EEUD
MAX3454EETE
MAX3455EEUD
MAX3455EETE
MAX3456EEUD
MAX3456EETE
16 Thin QFN
14 TSSOP
Applications
16 Thin QFN
14 TSSOP
PDAs
PC Peripherals
Cellular Telephones
Data Cradles
16 Thin QFN
14 TSSOP
16 Thin QFN
MP3 Players
ꢁelector Guide
V
POWER-
SUPPLY
V POWER-
L
SUPPLY
VOLTAGE (V)
INTERNAL
PULLUP
RESISTOR
BUS
V
LEVEL
DETECT
USB SPEED
SUPPORTED PROTECTION
15kV ESD
BUS
PART
ENUMERATE
VOLTAGE (V)
MAX3453E
MAX3454E
MAX3455E
MAX3456E
4.0 to 5.5
3.0 to 5.5
4.0 to 5.5
3.0 to 5.5
1.65 to 3.6
1.65 to 3.6
1.65 to 3.6
1.65 to 3.6
Yes
Yes
No
Yes
No
Yes
Yes
No
Full
Yes
Yes
Yes
Yes
Low/full
Low/full
Low/full
Yes
No
No
No
Typical Operating Circuit appears at end of data sheet.
Pin Configurations appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
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.
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
ABSOLUTE MAXIMUM RATINGS
V
BUS
V
, V , D+, D- to GND.......................................-0.3V to +6.0V
Continuous Power Dissipation (T = +70°C)
L
A
to GND ............................................-0.3V to (V
+ 0.3V)
14-Pin TSSOP (derate 9.1mW/°C above +70°C) .........727mW
16-Pin Thin QFN (derate 14.7mW/°C above +70°C)....1176mW
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
TRM
BUS
VP, VM, SUS, ENUM, SPD,
RCV, OE, BD to GND................................-0.3V to (V + 0.3V)
Current (into any pin) ........................................................ 15mA
Short-Circuit Current (D+ and D-)................................... 150mA
L
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
= +4.0V to +5.5V or V
= +3.0V to +3.6V, V = +1.65V to +3.6V, T = T
to T
, unless otherwise noted. Typical values
MAX
BUS
TRM
L
A
MIN
are at V
= +5.0V, V = +2.5V, and T = +25°C.) (Note 1)
BUS
L
A
PARAMETER
SUPPLY INPUTS (V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
, V
, V )
L
BUS TRM
Regulated Supply Voltage Output
V
Internal regulator
Full-speed transmitting and receiving at
12Mbps, C = 50pF on D+ and D- (Note 2)
L
3.0
3.3
3.6
10
V
TRM
Operating Supply Current
I
mA
VBUS
Full-speed transmitting and receiving at
12Mbps (Note 2)
Operating V Supply Current
L
I
2.5
mA
µA
VL
Full-speed idle: V > 2.7V, V < 0.3V
250
250
350
350
D+
D-
Full-Speed Idle and SE0 Supply
Current
I
VBUS(IDLE)
SE0: V < 0.3V, V < 0.3V
D+
D-
Full-speed idle,
SE0, or suspend
mode
MAX3453E/MAX3455E
MAX3454E/MAX3456E
15
5
Static V Supply Current
L
I
µA
VL(STATIC)
MAX3453E
(ENUM = low),
MAX3455E
40
35
VM = VP = open,
SUS = OE = high
Suspend Supply Current
I
VBUS(SUSP)
µA
MAX3454E
(ENUM = low),
MAX3456E
Disable Mode Supply Current
I
V = GND or open
20
20
µA
µA
VBUS(DIS)
L
V
= GND or
BUS
MAX3453E/MAX3455E
MAX3454E/MAX3456E
open, OE = low,
VP = low or high,
VM = low or
Sharing Mode V Supply Current
L
I
I
VL(SHARING)
5
high, SUS = high
D+/D- Sharing Mode Load
Current
V
= GND or open, V = 0 or +5.5V
20
5
µA
µA
D_(SHARING)
BUS
D_
D+/D- Disable Mode Load
Current
I
V = GND or open, V = 0 or +5.5V
L D_
D_(DIS)
2
_______________________________________________________________________________________
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(V
= +4.0V to +5.5V or V
= +3.0V to +3.6V, V = +1.65V to +3.6V, T = T
to T
, unless otherwise noted. Typical values
MAX
BUS
TRM
L
A
MIN
are at V
= +5.0V, V = +2.5V, and T = +25°C.) (Note 1)
BUS
L
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX3453E/MAX3455E, supply lost
3.6
MAX3453E/MAX3455E, supply present
MAX3454E/MAX3456E, supply lost
4.0
USB Power-Supply Detection
Threshold
V
0.8
V
TH_VBUS
MAX3454E/MAX3456E, supply present
(Note 3)
3.6
MAX3453E/MAX3455E
MAX3454E/MAX3456E
40
75
USB Power-Supply Detection
Hysteresis
V
mV
V
HYST_VBUS
V Power-Supply Detection
L
Threshold
V
0.85
TH_VL
DIGITAL INPUTS/OUTPUTS (VP, VM, RCV, SUS, OE, SPD, BD, ENUM)
Input Voltage Low
V
VM, VP, SUS, SPD, ENUM, OE
VM, VP, SUS, SPD, ENUM, OE
0.3 x V
0.4
V
V
IL
IH
L
Input Voltage High
V
0.7 x V
L
Output Voltage Low
V
VM, VP, RCV, BD, I = +2mA
V
OL
OL
Output Voltage High
V
VM, VP, RCV, BD, I
= -2mA
OH
V - 0.4
L
V
OH
LKG
Input Leakage Current
Input Capacitance
I
-1
+1
µA
pF
C
Measured from input to GND
10
IN
ANALOG INPUTS/OUTPUTS (D+, D-)
Differential Input Sensitivity
V
|V - V
|
0.2
0.8
V
V
ID
D+
D-
Differential Common-Mode
Voltage
V
Includes V range
2.5
0.8
CM
ID
Single-Ended Input Low Voltage
Single-Ended Input High Voltage
Hysteresis
V
V
V
ILSE
IHSE
HYST
V
2.0
V
V
250
20
mV
V
Output Voltage Low
V
R = 1.5kΩ to +3.6V
L
0.3
3.6
+1
OLD
Output Voltage High
R = 15kΩ to GND
L
2.8
-1
V
OHD
Off-State Leakage Current
Transceiver Capacitance
Driver Output Impedance
Input Impedance
I
µA
pF
Ω
LZ
C
Measured from D_ to GND
Steady-state drive
Driver off
IND
DRV
Z
3.5
10
15.5
Z
MΩ
IN
I
= 500µA (MAX3453E/MAX3454E)
LOAD
Internal Pullup Resistance
R
1.425
1.575
kΩ
PULLUP
(Note 4)
ESD PROTECTION (D+, D-)
Human Body Model
15
8
kV
kV
IEC 1000-4-2 Contact Discharge
_______________________________________________________________________________________
3
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
TIMING CHARACTERISTICS
(V
= +4.0V to +5.5V or V
= +3.0V to +3.6V, V = +1.65V to +3.6V, T = T
to T
, unless otherwise noted. Typical values
MAX
L
BUS
TRM
A
MIN
are at V
= +5V, V = +2.5V, and T = +25°C.) (Note 1)
BUS
L
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DRIVER CHARACTERISTICS (Full-Speed Mode, C = 50pF)
L
Rise Time
Fall Time
t
10% to 90% of |V
90% to 10% of |V
- V
- V
|, Figures 1, 6
|, Figures 1, 6
4
4
20
20
ns
ns
FR
OHD
OHD
OLD
t
FF
OLD
Excluding the first transition from idle state,
Figures 1, 6
Rise/Fall-Time Matching (Note 2)
t
/ t
90
110
2.0
%
V
FR FF
Output Signal Crossover Voltage
(Note 2)
Excluding the first transition from idle state,
Figures 2, 6
V
1.3
CRS_F
t
t
t
Low-to-high transition, Figures 2, 6
High-to-low transition, Figures 2, 6
High-to-off transition, Figure 3
Low-to-off transition, Figure 3
Off-to-high transition, Figure 3
Off-to-low transition, Figure 3
18
18
20
20
20
20
PLH_DRV
PHL_DRV
PHZ_DRV
Driver Propagation Delay
Driver Disable Delay
Driver Enable Delay
ns
ns
ns
ns
ns
t
PLZ_DRV
t
PZH_DRV
t
PZL_DRV
DRIVER CHARACTERISTICS (low-speed mode, C = 200pF to 600pF, MAX3454E/MAX3455E/MAX3456E)
L
Rise Time
Fall Time
t
10% to 90% of |V
90% to 10% of |V
- V
OLD
- V
OLD
|, Figures 1, 6
|, Figures 1, 6
75
75
300
300
ns
ns
LR
OHD
OHD
t
LF
Excluding the first transition from idle state,
Figures 1, 6
Rise/Fall-Time Matching
t
/ t
80
125
2.0
%
V
LR LF
Excluding the first transition from idle state,
Figures 2, 6
Output Signal Crossover Voltage
V
1.3
CRS_L
RECEIVER CHARACTERISTICS (C = 15pF)
L
t
t
Low-to-high transition, Figures 4, 6
High-to-low transition, Figures 4, 6
Low-to-high transition, Figures 4, 6
High-to-low transition, Figures 4, 6
High-to-off transition, Figure 5
Low-to-off transition, Figure 5
Off-to-high transition, Figure 5
Off-to-low transition, Figure 5
22
22
12
12
15
15
15
15
PLH_RCV
PHL_RCV
Differential Receiver Propagation
Delay
ns
ns
ns
ns
t
t
PLH_SE
PHL_SE
PHZ_SE
Single-Ended Receiver
Propagation Delay
t
Single-Ended Receiver Disable
Delay
t
PLZ_SE
PZH_SE
t
Single-Ended Receiver Enable
Delay
t
PZL_SE
Note 1: Parameters are 100% production tested at +25°C, unless otherwise noted. Limits over temperature are guaranteed by design.
Note 2: Guaranteed by design, not production tested.
Note 3: Production tested to +2.7V for V < +3.0V.
L
Note 4: Including external 27Ω series resistor.
4
_______________________________________________________________________________________
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
Typical Operating Characteristics
(V
= +5.0V, V = +3.3V, T = +25°C, unless otherwise noted.)
L
A
BUS
SINGLE-ENDED RECEIVER
PROPAGATION DELAY vs. V
RISE-/FALL-TIME MATCHING
(FULL SPEED)
RISE-/FALL-TIME MATCHING
(LOW SPEED)
L
MAX3453E-56E toc02
MAX3453E-56E toc03
8
C = 50pF
C = 15pF
L
C = 400pF
L
L
7
6
5
4
3
2
1
0
T
= +25°C
A
T
= +85°C
A
D+/D-
1V/div
D+/D-
1V/div
T
= -40°C
A
1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
20ns/div
100ns/div
V (V)
L
LOGIC SUPPLY CURRENT
vs. D+/D- CAPACITANCE
SUPPLY CURRENT
vs. D+/D- CAPACITANCE
OE, VP, VM TIMING
MAX3453E-56E toc04
500
450
400
350
300
250
200
150
100
50
24
22
20
18
16
14
12
10
8
C = 15pF
L
VP
SPD = V , f = 6MHz
2V/div
L
IN
VM
2V/div
SPD = V , f = 6MHz
L
IN
6
OE
5V/div
4
2
SPD = GND, f = 750kHz
IN
SPD = GND, f = 750kHz
IN
0
0
20ns/div
0
50 100 150 200 250 300 350 400
D+/D- CAPACITANCE (pF)
0
50 100 150 200 250 300 350 400
D+/D- CAPACITANCE (pF)
_______________________________________________________________________________________
5
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
-in Description
PIN
MAX3454E/
MAX3455E/
MAX3456E
MAX3453E
NAME
FUNCTION
TSSOP
THIN QFN
TSSOP
THIN QFN
Digital I/O Connections Logic Supply. Connect a +1.65V to
+3.6V supply to V . Bypass V to GND with a 0.1µF ceramic
capacitor.
1
2
15
1
15
V
L
L
L
Speed Selector Input. Connect SPD to GND to select the low-
speed data rate (1.5Mbps). Connect SPD to V to select the full-
L
speed data rate (12Mbps). The MAX3453E only supports full-
speed operation.
1
—
—
SPD
Differential Receiver Output. RCV responds to the differential inputs
on D+ and D- (see Tables 3, 4). RCV asserts low if SUS = V .
L
3
4
2
3
3
4
2
3
RCV
VP
Receiver Output/Driver Input. VP functions as a receiver output
when OE = V . VP duplicates D+ when receiving. VP functions
L
as a driver input when OE = GND.
Receiver Output/Driver Input. VM functions as a receiver output
when OE = V . VM duplicates D- when receiving. VM functions
5
4
5
4
VM
L
as a driver input when OE = GND.
No Connection. Not internally connected.
*Pin 13 is No Connection for MAX3456E only.
6, 13*
7
5, 8, 13*, 16
6
6
7
5, 8, 16
6
N.C.
GND
Ground
Suspend Input. Drive SUS low for normal operation. Drive SUS
high to put the MAX3453E–MAX3456E into suspend mode. RCV
asserts low in suspend mode. VP and VM remain active in
suspend mode.
8
9
7
9
8
9
7
9
SUS
Output Enable. Drive OE to GND to enable the transmitter
OE
outputs. Drive OE to V to disable the transmitter outputs. OE
L
also controls the I/O direction of VP and VM (see Tables 3, 4).
USB Input/Output. For OE = GND, D- functions as a USB
output, with VM providing the input signal. For OE = V , D-
L
functions as a USB input, with VM functioning as a single-ended
10
10
10
10
D-
receiver output. Connect a 1.5kΩ resistor from D- to V
for
TRM
low-speed (1.5Mbps) operation (MAX3455E/MAX3456E). Drive
ENUM to V to connect the internal 1.5kΩ resistor from D- to
L
V
for low-speed (MAX3454E, SPD = GND) operation.
TRM
6
_______________________________________________________________________________________
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
-in Description (continued)
PIN
MAX3454E/
MAX3455E/
MAX3456E
MAX3453E
NAME
FUNCTION
TSSOP
THIN QFN
TSSOP
THIN QFN
USB Input/Output. For OE = GND, D+ functions as a USB
output, with VP providing the input signal. For OE = V , D+
L
functions as a USB input, with VP functioning as a single-ended
receiver output. Connect a 1.5kΩ resistor from D+ to V
full-speed (12Mbps) operation (MAX3455E/MAX3456E). Drive
for
TRM
11
11
11
11
D+
ENUM to V to connect the internal 1.5kΩ resistor (MAX3453E/
L
MAX3454E) from D+ to V
for full-speed (MAX3454E, SPD =
TRM
V ) operation.
L
Internal Regulator Output. V
provides a regulated +3.3V
TRM
output. Bypass V
to GND with a 1µF (min) ceramic
TRM
capacitor as close to the device as possible. V
normally
directly with
TRM
TRM
derives power from V . Alternatively, drive V
BUS
12
13
12
13
12
12
V
TRM
a +3.3V 10% supply (MAX3454E/MAX3456E). V
power to internal circuitry and provides the pullup voltage for an
external USB pullup resistor (MAX3455E/MAX3456E). Do not
provides
TRM
use V
to power external circuitry.
TRM
Bus-Detection Output (MAX3453E/MAX3455E). The push-pull
BD output asserts low and the device enters sharing mode if
(MAX3455E (MAX3455E
13
2
13
1
BD
only)
only)
V
< +3.6V. BD asserts high if V
> +4.0V.
BUS
BUS
Enumerate Function Selection Input (MAX3453E/MAX3454E).
Drive ENUM to V to connect the internal 1.5kΩ resistor
L
13
13
between V
and D+ or D-, depending on the state of SPD.
TRM
ENUM
(MAX3454E (MAX3454E
Drive ENUM to GND to disconnect the internal 1.5kΩ resistor.
only)
only)
For SPD = V , the 1.5kΩ resistor connects to D+. For SPD =
L
GND, the 1.5kΩ resistor connects to D-. For the MAX3453E, the
resistor only connects to D+.
USB Power-Supply Input. Connect a +4.0V to +5.5V power
supply to V
. V
BUS BUS
provides power to the internal linear
regulator. Bypass V
as close to the device as possible. Connect V
to GND with a 0.1µF ceramic capacitor
BUS
14
14
14
14
V
BUS
and V
TRM
BUS
together when powering the MAX3454E/MAX3456E with an
external power supply (+3.3V 10%).
_______________________________________________________________________________________
7
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
Functional Diagram
MAX3453E
TO INTERNAL
CIRCUITRY
BD
V
LDO
REGULATOR
BUS
V
TH_VBUS
V
TRM
V
L
VP
D+
D-
VM
OE
LEVEL
TRANSLATOR
RCV
SUS
TO INTERNAL
CIRCUITRY
1.5kΩ
V
TRM
ENUM
GND
8
_______________________________________________________________________________________
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
Functional Diagram (continued)
MAX3454E–
MAX3456E
TO INTERNAL
MAX3455E ONLY
CIRCUITRY
BD
V
LDO
REGULATOR
BUS
V
TH_VBUS
V
TRM
V
L
SPD
VP
D+
D-
VM
OE
LEVEL
TRANSLATOR
RCV
SUS
TO INTERNAL
CIRCUITRY
MAX3454E ONLY
1.5kΩ
V
TRM
SPD
CONTROL
LOGIC
ENUM
GND
_______________________________________________________________________________________
9
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
pullup resistor, allowing the MAX3453E/MAX3454E to
simulate a bus disconnect while powered and connect-
ed to the USB cable. The MAX3453E/MAX3455E fea-
Detailed Description
The MAX3453E–MAX3456E USB-compliant transceivers
convert single-ended or differential logic-level signals to
USB signals, and USB signals to single-ended or differ-
ential logic-level signals. The MAX3453E fully complies
with full-speed (12Mbps) operation under USB specifica-
tion 2.0. The MAX3454E–MAX3456E fully comply with
USB specification 1.1, and full-speed (12Mbps) and low-
speed (1.5Mbps) operation under USB specification 2.0.
ture a bus-detect output (BD) that asserts high if V
BUS
> +4V. BD asserts low if V
< +3.6V. The
BUS
MAX3455E/MAX3456E require external pullup resistors
from either D+ or D- to V to utilize the appropriate
TRM
bus speed. The MAX3456E is pin-for-pin compatible
with the Micrel MIC2550A.
The MAX3453E–MAX3456E operate with V as low as
L
Applications Information
-owerꢂꢁupply Configurations
+1.65V, ensuring compatibility with low-voltage ASICs.
The MAX3453E–MAX3456E derive power from the USB
Normal Operating Mode
host (V
) or from a single-cell Li+ battery
BUS
Connect V and V
to system power supplies (Table 1).
L
BUS
(MAX3454E/MAX3456E) connected to V
or from a
BUS
Connect V to a +1.65V to +3.6V supply. Connect V
L
BUS
+3.3V regulated supply connected to V
and V
.
BUS
TRM
to a +4.0V to +5.5V supply. Alternatively, the MAX3454E/
MAX3456E can derive power from a single Li+ battery.
The MAX3453E–MAX3456E meet the physical layer
specifications for logic-level supply voltages (V ) from
L
Connect the battery to V
.
BUS
+1.65V to +3.6V. Integrated 15kV ESD protection safe-
guards the D+ and D- USB I/O ports.
Additionally, the MAX3454E/MAX3456E can derive
power from a +3.3V 10% voltage regulator. Connect
The MAX3453E/MAX3454E feature an enumerate func-
tion providing an internal 1.5kΩ pullup resistor from D+
(MAX3453E/MAX3454E) or D- (MAX3454E only) to
V
V
and V
to an external +3.3V voltage regulator.
TRM
BUS
BUS
no longer consumes current to power the internal
linear regulator in this configuration.
V
. The enumerate function disconnects the 1.5kΩ
TRM
Table 1. Power-Supply Configurations
V
(V)
V
(V)
V (V)
CONFIGURATION
NOTES
—
BUS
TRM
L
4.0 to 5.5
3.1 to 4.5
3.0 to 3.6 output
3.0 to 3.6 output
3.0 to 3.6 input
Output
1.65 to 3.6
1.65 to 3.6
Normal mode
Battery supply
MAX3454E/MAX3456E
3.0 to 3.6
1.65 to 3.6
Voltage regulator supply MAX3454E/MAX3456E
GND or floating
3.0 to 5.5
1.65 to 3.6
Sharing mode
Disable mode
Table 2
Table 2
V
GND or floating
BUS
Table 2. Disable-Mode and Sharing-Mode Connections
INPUTS/OUTPUTS
DISABLE MODE
SHARING MODE
•
•
•
5V input/3.3V output
3.3V input/3.3V input (MAX3454E/MAX3456E)
3.7V input/3.3V output (MAX3454E/MAX3456E)
•
•
Floating or connected to GND
(MAX3453E/MAX3454E/MAX3456E)
< 3.6V (MAX3453E/MAX3455E)
V
/V
BUS TRM
V
Floating or connected to GND
High impedance
1.65V to 3.6V input
High impedance
L
D+ and D-
VP and VM
RCV
High impedance for OE = low
High for OE = high
Undefined**
Invalid*
Invalid*
SPD (MAX3454E–MAX3456E),
SUS, OE, ENUM
High impedance
Invalid*
High impedance
Low
(MAX3453E/MAX3454E)
BD (MAX3453E/MAX3455E)
*High impedance or low.
**High or low.
10 ______________________________________________________________________________________
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
Disable Mode
Table 3a. Transmit Truth Table
(OE = 0, SUS = 0)
Connect V
to a system power supply and leave V
L
BUS
unconnected or connect to GND. D+ and D- enter a tri-
state mode and V (or V and V ) consumes
BUS
BUS
TRM
INPUTS
OUTPUTS
OUTPUT STATE
less than 20µA of supply current. D+ and D- withstand
external signals up to +5.5V in disable mode (Table 2).
VP
VM
0
D+
0
D-
0
RCV
0
0
1
1
X
0
1
X
SE0
Sharing Mode
1
0
1
Logic 0
Logic 1
Undefined
Connect V to a system power supply and leave V
L
BUS
0
1
0
(or V
and V
) unconnected or connect to GND.
BUS
TRM
1
1
1
D+ and D- enter a tri-state mode, allowing other circuitry
to share the USB D+ and D- lines, and V consumes less
L
X = Undefined.
than 20µA of supply current. D+ and D- withstand
external signals up to +5.5V in sharing mode (Table 2).
Table 3b. Transmit Truth Table
Device Control
(OE = 0, SUS = 1)
OE
OE controls the direction of communication. Drive OE
low to transfer data from the logic side to the USB side.
For OE = low, VP and VM serve as differential driver
inputs to the USB transmitter.
INPUTS
OUTPUTS
OUTPUT STATE
VP
VM
0
D+
0
D-
0
RCV
0
0
1
1
0
0
0
0
SE0
1
0
1
Logic 0
Logic 1
Undefined
Drive OE high to transfer data from the USB side to the
logic side. For OE = high, VP and VM serve as single-
ended receiver outputs from the USB inputs
(D+ and D-). RCV serves as a differential receiver out-
put, regardless of the state of OE.
0
1
0
1
1
1
ENUM (MAX3453E/MAX3454E)
The MAX3453E/MAX3454E feature an enumerate func-
tion that allows software control of USB enumeration.
USB protocol requires a 1.5kΩ pullup resistor to D+ or
D- to indicate the transmission speed to the host (see
the SPD section). The MAX3453E/MAX3454E provide
an internal 1.5kΩ pullup resistor. Disconnect the pullup
resistor from the circuit to simulate the removal of a
device from the USB. Drive ENUM low to disconnect
the internal pullup resistor. Drive ENUM high to connect
the internal pullup resistor. The SPD state (MAX3454E
only) determines whether the pullup resistor connects
to D+ or D-. For ENUM = high, the internal pullup resis-
Table 4a. Receive Truth Table
(OE = 1 and SUS = 0)
INPUTS
OUTPUTS
OUTPUT STATE
D+
D-
0
VP
0
VM
0
RCV
0
0
1
1
X
0
1
X
SE0
1
0
1
Logic 0
Logic 1
Undefined
0
1
0
1
1
1
X = Undefined.
tor connects to D+ when SPD = V (full speed) or to D-
L
when SPD = GND (low speed). The MAX3453E only
supports full-speed operation; therefore, the pullup
resistor only connects to D+ or is disconnected.
Table 4b. Receive Truth Table
(OE = 1 and SUS = 1)
t , t
FR LR
t , t
FF LF
INPUTS
OUTPUTS
OUTPUT STATE
V
D+
D-
0
VP
0
VM
0
RCV
OHD
90%
90%
0
0
1
1
0
0
0
0
SE0
1
0
1
Logic 0
Logic 1
Undefined
0
1
0
10%
10%
1
1
1
V
OLD
Figure 1. Rise and Fall Times
______________________________________________________________________________________ 11
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
SPD (MAX3454E/MAX3455E/MAX3456E)
SPD sets the transceiver speed. Connect SPD to GND
VP AND VM RISE/FALL TIMES < 4ns
to select the low-speed data rate (1.5Mbps). Connect
VM
VP
D-
SPD to V to select the full-speed data rate (12Mbps).
L
The MAX3454E provides an internal pullup resistor for
selecting the bus speed. The MAX3455E and
MAX3456E require an external pullup resistor to D+ or
D- to set the bus speed. Connect the 1.5kΩ resistor
t
t
PLH_DRV
PHL_DRV
between D+ and V
to set the full-speed (12Mbps)
TRM
data rate, or connect the 1.5kΩ resistor between D- and
V
TRM
to set the low-speed (1.5Mbps) data rate.
SUS
V
, V
CRS_F CRS_L
The SUS state determines whether the MAX3453E–
MAX3456E operate in normal mode or in suspend
mode. Connect SUS to GND to enable normal opera-
tion. Drive SUS high to enable suspend mode. RCV
asserts low and VP and VM remain active in suspend
mode (Tables 3 and 4). Supply current decreases in
suspend mode (see the Electrical Characteristics).
D+
Figure 2. Timing of VP and VM to D+ and D-
BD (MAX3453E/MAX3455E)
External Components
The push-pull bus detect (BD) output monitors V
BUS
and asserts high if V
is greater than +4.0V. BD
External Resistors
Proper USB operation requires two external resistors,
each 27Ω 1%, 1/8W (or greater). Install one resistor in
series between D+ of the MAX3453E–MAX3456E and
D+ on the USB connector. Install the other resistor in
series between D- of the MAX3453E–MAX3456E and D-
on the USB connector (see Typical Operating Circuit).
BUS
asserts low if V
is less than +3.6V and the
BUS
MAX3453E/MAX3455E enters sharing mode (Table 2).
V
TRM
voltage
An internal linear regulator generates the V
TRM
(+3.3V, typ). V
derives power from V
(see the
powers the
TRM
BUS
Power-Supply Configurations section). V
TRM
The MAX3455E/MAX3456E require an external 1.5kΩ
internal portions of the USB circuitry and provides the
pullup voltage for an external USB pullup resistor
pullup resistor between V
bus speed.
and D+ or D- to set the
TRM
(MAX3455E/MAX3456E). Bypass V
to GND with a
TRM
1µF ceramic capacitor as close to the device as possible.
Do not use V to provide power to external circuitry.
External Capacitors
TRM
The MAX3453E–MAX3456E require three external
capacitors for proper operation. Bypass V to GND with a
L
D+ and D-
0.1µF ceramic capacitor. Bypass V
0.1µF ceramic capacitor. Bypass V
to GND with a
to GND with a
BUS
TRM
D+ and D- serve as bidirectional bus connections and
are ESD protected to 15kV (Human Body Model). For
OE = low, D+ and D- serve as transmitter outputs. For
OE = high, D+ and D- serve as receiver inputs.
1µF (min) ceramic capacitor. Install all capacitors as
close to the device as possible.
Data Transfer
V
BUS
termi-
Transmitting Data to the USB
The MAX3453E–MAX3456E transmit data to the USB
differentially on D+ and D-. VP and VM serve as differ-
ential input signals to the driver (Tables 3a and 3b).
For most applications, V
connects to the V
BUS
BUS
nal on the USB connector (see the Power-Supply
Configurations section). V can also connect to an
BUS
external supply as low as +3.1V (MAX3454E/MAX3456E).
Drive V low to enable sharing mode. Bypass V to
BUS
BUS
Receiving Data from the USB
To receive data from the USB, drive OE high and SUS
low. Differential data received by D+ and D- appears
as a differential logic signal at RCV. Single-ended
receivers on D+ and D- drive VP and VM, respectively
(Tables 4a and 4b).
GND with a 0.1µF ceramic capacitor as close to the
device as possible.
12 ______________________________________________________________________________________
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
V
L
+3V
560Ω
560Ω
150Ω
150Ω
+3V
V
L
DUT
DUT
D+/D-
VP/VM
VP/VM
D+/D-
OE
OE
VP/VM CONNECTED TO GND,
D+/D- CONNECTED TO PULLUP
D+/D- CONNECTED TO GND,
VP/VM CONNECTED TO PULLUP
D+/D-
VP/VM
t
t
PZL_DRV
PLZ_DRV
t
t
PZL_SE
PLZ_SE
VP/VM CONNECTED TO V ,
L
D+/D- CONNECTED TO PULLDOWN
OE
D+/D- CONNECTED TO +3V,
VP/VM CONNECTED TO PULLDOWN
OE
D+/D-
VP/VM
t
t
PZH_DRV
PHZ_DRV
t
t
PZH_SE
PHZ_SE
Figure 3. Enable and Disable Timing, Driver
Figure 5. Enable and Disable Timing, Receiver
INPUT RISE/FALL TIME < 4ns
+3V
TEST
POINT
MAX3453E–
MAX3456E
D+/D-
0V
RCV, VM,
AND VP
C
L
(a) LOAD FOR RCV, VM, AND VP
TEST
POINT
MAX3453E–
MAX3456E
V
L
27Ω
t
t
,
PLH_RCV
PLH_SE
D+ AND D-
C
L
15kΩ
t
t
,
PHL_RCV
PHL_SE
(b) LOAD FOR D+/D-
RCV, VM, AND VP
Figure 4. Timing of D+ and D- to RCV, VM, and VP
Figure 6. Test Circuits
______________________________________________________________________________________ 13
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
EꢁD -rotection
R
R
C
D
1.5kΩ
1MΩ
D+ and D- possess extra protection against static elec-
tricity to protect the devices up to 15kV. The ESD
structures withstand high ESD in all operating modes:
normal operation, suspend mode, and powered down.
D+ and D- provide protection to the following limits:
DISCHARGE
RESISTANCE
CHARGE-CURRENT-
LIMIT RESISTOR
HIGH-
VOLTAGE
DC
DEVICE
UNDER
TEST
C
s
STORAGE
CAPACITOR
100pF
•
•
15kV using the Human Body Model
SOURCE
8kV using the Contact Discharge method specified
in IEC 1000-4-2
EꢁD Test Conditions
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents
test setup, test methodology, and test results.
Figure 7. Human Body ESD Test Models
Human Body Model
Figure 7 shows the Human Body Model and Figure 8
shows the current waveform generated when dis-
charged into a low impedance. This model consists of
a 100pF capacitor charged to the ESD voltage of inter-
est, which then discharges into the test device through
a 1.5kΩ resistor.
I
100%
90%
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
I
P
r
AMPERES
36.8%
10%
0
IEC ±000ꢂ4ꢂ2
The IEC 1000-4-2 standard covers ESD testing and
performance of finished equipment. It does not specifi-
cally refer to integrated circuits. The major difference
between tests done using the Human Body Model and
IEC 1000-4-2 is a higher peak current in IEC 1000-4-2,
due to lower series resistance. Hence, the ESD with-
stand voltage measured to IEC 1000-4-2 generally is
lower than that measured using the Human Body
Model. Figure 9 shows the IEC 1000-4-2 model. The
Contact Discharge method connects the probe to the
device before the probe is charged.
TIME
0
t
RL
t
DL
CURRENT WAVEFORM
Figure 8. Human Body Model Current Waveform
R
R
D
330Ω
C
50Ω to 100Ω
DISCHARGE
RESISTANCE
CHARGE-CURRENT-
LIMIT RESISTOR
Machine Model
The Machine Model for ESD tests all connections using
a 200pF storage capacitor and zero discharge resis-
tance. Its objective is to emulate the stress caused by
contact that occurs with handling and assembly during
manufacturing. All pins require this protection during
manufacturing, not just inputs and outputs. After PC
board assembly, the Machine Model is less relevant to
I/O ports.
HIGH-
VOLTAGE
DC
DEVICE
UNDER
TEST
C
s
150pF
STORAGE
CAPACITOR
SOURCE
Figure 9. IEC 1000-4-2 ESD Test Model
Chip Information
TRANSISTOR COUNT: 873
PROCESS: BiCMOS
14 ______________________________________________________________________________________
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
Typical Operating Circuits
+1.65V TO +3.6V
0.1µF
0.1µF
PC
V
L
USB
V
L(I/O)
V
BUS
D+
BD*
VP
POWER
27Ω 1%
27Ω 1%
D+
D-
D-
VM
MAX3453E
MAX3454E
ASIC
RCV
GND
GND
USB CABLE
ENUM
15kΩ
15kΩ
SUS
SPD**
OE
V
TRM
1µF
GND
*MAX3453E ONLY.
**MAX3454E ONLY.
+1.65V TO +3.6V
0.1µF
0.1µF
PC
V
L
USB
POWER
V
V
L(I/O)
BUS
VP
V
TRM
VM
1µF
1.5kΩ***
27Ω 1%
27Ω 1%
RCV
BD**
MAX3455E
MAX3456E*
ASIC
D+
D+
D-
SUS
SPD
D-
OE
GND
GND
GND
USB CABLE
15kΩ
15kΩ
*PIN COMPATIBLE WITH MICREL MIC2550A.
**MAX3455E ONLY.
***CONNECT TO D+ FOR FULL-SPEED OPERATION. CONNECT TO D- FOR LOW-SPEED OPERATION.
______________________________________________________________________________________ 15
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
-in Configurations
TOP VIEW
V
V
BUS
1
2
3
4
5
6
7
14
L
1
2
3
4
5
6
7
14
13
12
11
10
9
V
V
BUS
L
ENUM
RCV
VP
13 BD
N.C. (ENUM*) (BD**)
SPD
RCV
VP
V
MAX3453E
12
MAX3454E
MAX3455E
MAX3456E
TRM
V
TRM
11 D+
10 D-
D+
VM
VM
D-
N.C.
GND
9
8
OE
N.C.
GND
OE
SUS
8
SUS
TSSOP
TSSOP
16
15
14
13
16
15
14
13
ENUM
RCV
VP
V
SPD
RCV
VP
V
TRM
1
2
3
4
12
1
2
3
4
12
11
10
9
TRM
MAX3453E
MAX3454E
MAX3455E
MAX3456E
D+
D-
OE
D+
D-
OE
11
10
9
***EXPOSED PADDLE
***EXPOSED PADDLE
VM
VM
5
6
7
8
5
6
7
8
3mm x 3mm
THIN QFN
3mm x 3mm
THIN QFN
*MAX3454E ONLY.
**MAX3455E ONLY.
***CONNECT EXPOSED PADDLE TO GND OR LEAVE FLOATING.
16 ______________________________________________________________________________________
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
-acꢀage Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
D2
b
0.10 M
C
A
B
D
D2/2
D/2
E/2
E2/2
- A -
(NE - 1)
X e
C
E2
E
L
L
- B -
k
e
C
L
(ND - 1)
X e
C
L
C
L
0.10
C
0.08
C
A
A2
A1
L
L
e
e
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE
12 & 16L, QFN THIN, 3x3x0.8 mm
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0136
C
2
______________________________________________________________________________________ 17
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
-acꢀage Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
EXPOSED PAD VARIATIONS
NOTES:
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.
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 0.20 mm AND 0.25 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 REVISION C.
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE
12 & 16L, QFN THIN, 3x3x0.8 mm
APPROVAL
DOCUMENT CONTROL NO.
REV.
2
21-0136
C
2
18 ______________________________________________________________________________________
±±5ꢀk EꢁDꢂ-rotected UꢁB Transceivers
-acꢀage Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
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 -roducts, ±20 ꢁan Gabriel Drive, ꢁunnyvale, CA 94086 408ꢂ737ꢂ7600 ____________________ 19
© 2003 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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