19-0621; Rev 0; 10/06
3-Wire Interface Full-Speed USB Transceivers
With/Without Internal Series Resistors
General Description
The MAX13342E/MAX13345E USB-compliant trans-
ceivers are designed to minimize the area and external
components required to interface low-voltage ASICs to
USB. The devices comply with USB 2.0 specification for
full-speed-only (12Mbps) operation. The transceivers
include an internal 3.3V regulator, an internal 1.5kΩ D+
pullup resistor, and built-in ±15kV ESD protection cir-
cuitry to protect the USB I/0 ports (D+,D-). The
MAX13345E also has internal series resistors, allowing
it to be wired directly to a USB connector.
These devices operate with logic-supply voltages as
low as +2.3V, ensuring compatibility with low-voltage
ASICs. A low-power mode reduces current consump-
tion to less than 45µA. An enumerate function controls
the D+ pullup resistor, allowing devices to logically dis-
connect while remaining plugged in.
The MAX13342E has controlled output impedance of
2Ω (max) on D+/D-, allowing the use of external switch-
es to multiplex two different USB devices onto a single
USB connector. The MAX13345E has 43.5Ω (max)
internal resistors on D+/D- for direct connection to the
USB connector.
The MAX13342E/MAX13345E are equipped with DAT
and SE0 interface signals. These transceivers provide a
USB detection function that monitors the presence of
USB V
BUS
and signals the event.
These devices operate over the extended -40°C to +85°C
temperature range and are available in UCSP™ 2.0mm x
1.5mm and 14-pin TDFN (3mm x 3mm) packages.
UCSP™ is a trademark of Maxim Integrated Products, Inc.
Features
o
USB 2.0 (Full-Speed, 12Mbps)-Compliant
Transceiver
o
Internal Pullup
o
V
BUS
Detection
o
Internal Series Resistors (MAX13345E)
o
±15kV (HBM) ESD Protection on D+, D-, and V
BUS
o
Enumeration Input Controls D+ Pullup Resistor
o
Supports 3-Wire DAT/SE0 Interface
o
+2.3V to +3.6V Interface Voltage (V
L
)
o
No Power-Supply Sequencing Required
o
Low USB Output Impedance (MAX13342E)
MAX13342E/MAX13345E
Ordering Information
PART
MAX13342EETD+
MAX13342EEBC+*
MAX13345EETD
+
MAX13345EEBC+*
PIN-
PACKAGE
14 TDFN-EP
(3mm x 3mm)
12 UCSP
(2.0mm x 1.5mm)
14 TDFN-EP
(3mm x 3mm)
12 UCSP
(2.0mm x 1.5mm)
TOP
MARK
ACZ
ACU
ADA
ACX
PKG CODE
T1433-2
B12-3
T1433-2
B12-3
*Future
product—contact factory for availability.
+Denotes
lead-free package.
EP = Exposed pad.
Applications
PDAs
PC Peripherals
Cellular Telephones
Data Cradles
MP3 Players
SYSTEM
VOLTAGE
SUPPLY
Typical Operating Circuits
V
L
0.1µF
V
BUS
1µF
MAX13342E
BD
SYSTEM
INTERFACE
DAT
SEO
OE
ENUM
SUS
GND
V
TRM
1µF
Pin Configurations and Selector Guide appear at end of data
sheet.
D+
31.6Ω
D-
31.6Ω
USB
CONNECTOR
Typical Operating Circuits continued 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.
3-Wire Interface Full-Speed USB Transceivers
With/Without Internal Series Resistors
MAX13342E/MAX13345E
ABSOLUTE MAXIMUM RATINGS
(All voltages refer to GND unless otherwise noted.)
Supply Voltage (V
BUS
) .............................................-0.3V to +6V
System Supply Voltage (V
L
) .....................................-0.3V to +6V
Output of Internal Regulator (V
TRM
) .........-0.3V to (V
BUS
+ 0.3V)
Input Voltage (D+, D-) ..............................................-0.3V to +6V
SUS, BD ........................................................-0.3V to (V
L
+ 0.3V)
ENUM, SE0, DAT ..........................................-0.3V to (V
L
+ 0.3V)
Short-Circuit Current to V
BUS
or GND (D+, D-) ..............±150mA
Maximum Continuous Current (all other pins) ..................±15mA
Continuous Power Dissipation (T
A
= +70°C)
14-Pin TDFN (derate 18.5mW/°C above +70°C) .......1482mW
4mm x 3mm UCSP
(derate 6.5mW/°C above +70°C) ..............................518mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Bump Soldering ...............................................................+235°C
Lead Soldering (10s) ...................................................... +300°C
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.
ELECTRICAL CHARACTERISTICS
(V
BUS
= +4.0V to +5.5V, V
L
= +2.3V to +3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
BUS
= +5.0V, V
L
=
+2.5V, T
A
= +25°C.) (Note 1)
PARAMETER
SUPPLY INPUTS (V
BUS
, V
TRM
, V
L
)
V
BUS
Input Range
V
L
Input Range
Regulated Supply-Voltage Output
Operating V
BUS
Supply Current
Operating V
L
Supply Current
Full-Speed Idle and SE0 Supply
Current
Static V
L
Supply Current
Suspend Supply Current
Disable-Mode Supply Current
V
BUS
V
L
V
TRM
I
VBUS
I
VL
I
VBUS(IDLE)
I
VL(STATIC)
I
VBUS(SUSP)
I
VBUS(DIS)
Full-speed transmitting/receiving at
12Mbps, C
L
= 50pF on D+ and D-
Full-speed transmitting/receiving at 12Mbps,
C
L
= 15pF receiver outputs, V
L
= 2.5V
Full-speed idle, V
D+
>2.7V, V
D-
<0.3V
SE0: V
D-
<0.3V, V
D+
<0.3
Full-speed idle, SE0 or suspend mode
SE0 = DAT= open;
SUS =
OE
= high
V
L
= GND or open
V
BUS
= GND or open,
OE
= low,
SE0 = DAT = low or high, SUS = high
V
BUS
= GND or open
V
L
> 2.3V
0.8
100
850
30
1.5
500
500
10
45
25
5
20
3.6
4.0
2.3
3.0
3.3
5.5
3.6
3.6
10
V
V
V
mA
mA
µA
µA
µA
µA
µA
µA
V
mV
mV
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Sharing-Mode V
L
Supply Current I
VL(SHARING)
D+/D- Supply Current
V
BUS
Power-Supply Detection
Threshold
V
BUS
Power-Supply Detection
Hysteresis
V
L
Power-Supply Threshold
I
D+/D-
V
TH_VBUS
V
VBUSHYS
V
TH_VL
2
_______________________________________________________________________________________
3-Wire Interface Full-Speed USB Transceivers
With/Without Internal Series Resistors
ELECTRICAL CHARACTERISTICS (continued)
(V
BUS
= +4.0V to +5.5V, V
L
= +2.3V to +3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
BUS
= +5.0V, V
L
=
+2.5V, T
A
= +25°C.) (Note 1)
PARAMETER
Input-High Voltage
Input-Low Voltage
Output-Voltage High
Output-Voltage Low
Input Leakage Current
Input Capacitance
ANALOG INPUTS AND OUTPUTS (D+/D-)
Differential Input Sensitivity
Differential Common-Mode
Voltage Range
Single-Ended Input Voltage High
Single-Ended Input Voltage Low
Receiver Single-Ended
Hysteresis
Output-Voltage Low
Output-Voltage High
Off-State Leakage Current
Transceiver Capacitance
Driver Output Impedance
Internal Pullup Resistor
Input Impedance
LINEAR REGULATOR
External Capacitor
ESD PROTECTION (D+, D-)
Human Body Model
IEC 61000-4-2 Air-Gap
Discharge
IEC 61000-4-2 Contact
Discharge
±15
±8
±8
kV
kV
kV
C
OUT
Compensation of linear regulator
1
µF
C
IND
R
OUT
R
PU
Z
IN
Drivers off, tri-state driver, ENUM = 0,
V
D+
, V
D-
= 0 OR +3.6V
V
ID
V
CM
V
IHSE
V
ILSE
V
HYS
V
OLD
V
OHD
R
L
= 1.5kΩ from D+ or D- to 3.6V
R
L
= 15kΩ from D+ or D- to GND
Tri-state driver
Measured from D+ or D- to GND
MAX13342E
MAX13345E
4
28
1.425
1
1.500
2.8
-1
20
14
43
1.575
200
0.3
3.6
+1
|V
D+
- V
D-
|
Includes V
ID
range
200
0.8
2.0
0.8
2.5
mV
V
V
V
mV
V
V
µA
pF
Ω
kΩ
MΩ
SYMBOL
V
IH
V
IL
V
OH
V
OL
I
LKG
Measured from input to GND
I
SOURCE
= 2mA
I
SINK
= 2mA
-1
10
V
L
- 0.4
0.4
+1
CONDITIONS
MIN
0.7 x V
L
0.3 x V
L
TYP
MAX
UNITS
V
V
V
V
µA
pF
DIGITAL INPUTS AND OUTPUTS (DAT, SE0,
OE,
ENUM, SUS, BD)
MAX13342E/MAX13345E
_______________________________________________________________________________________
3
3-Wire Interface Full-Speed USB Transceivers
With/Without Internal Series Resistors
MAX13342E/MAX13345E
TIMING CHARACTERISTICS
(V
BUS
= +4V to +5.5V, V
L
= +2.3V to +3.6V, ENUM = V
L
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
BUS
=
+5V, V
L
= +2.5V, T
A
= +25°C.) (Note 1)
PARAMETER
TRANSMITTER ( C
L
= 50pF)
Rise Time
t
FR
10% to 90% of |V
OHD
-V
OLD
| with an external
31.6Ω series resistor (MAX13342E),
Figures 3, 8
10% to 90% of |V
OHD
-V
OLD
| with an external
31.6Ω series resistor (MAX13342E),
Figures 3, 8
Figures 3, 8
Figure 4
Low-to-high transition,
Figures 4, 8
High-to-low transition,
Figures 4, 8
Off-to-high transition,
Figures 5, 8
Off-to-low transition,
Figures 5, 8
High-to-off transition,
Figure 5, 9
Low-to-off transition,
Figures 5, 9
Low-to-high transition,
Figures 6,10
High-to-low transition,
Figures 6,10
Low-to-high transition,
Figures 6,10
High-to-low transition,
Figures 6,10
High-to-off transition,
Figure 7
Low-to-off transition,
Figure 7
Off-to-high transition,
Figure 7
Off-to-low transition,
Figure 7
V
L
> 2.3V
V
L
> 2.3V
V
L
> 2.3V
V
L
> 2.3V
V
L
> 2.3V
V
L
> 2.3V
V
L
> 2.3V
V
L
> 2.3V
V
L
> 2.3V
V
L
> 2.3V
4
20
ns
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Fall Time
Rise-and-Fall Time Matching
(Note 1)
Output Signal Crossover (Note 2)
t
FF
4
20
ns
t
LR
/t
LF
V
CRS_L
,
V
CRS_F
t
PLH_DRV
t
PHL_DRV
t
PZH_DRV
90
1.3
110
2
20
%
V
Driver
Propagation Delay
ns
20
18
ns
18
18
ns
18
Driver-Enabled Delay Time
t
PZL_DRV
t
PHZ_DRV
Driver Disable Delay
t
PLZ_DRV
RECEIVER (C
L
= 15pF)
Differential Receiver
Propagation Delay
t
PLH_RCV
t
PHL_RCV
t
PLH_SE
t
PHL_SE
t
PHZ_SE
t
PLZ_SE
t
PZH_SE
t
PZL_SE
V
L
> 2.3V
V
L
> 2.3V
20
ns
20
18
ns
18
20
ns
20
22
ns
22
Single-Ended Receiver
Propagation Delay
Single-Ended Receiver Disable
Delay
Single-Ended Receiver Enable
Delay
Note 1:
Parameters are 100% production tested at +25°C, unless otherwise noted. Limits over temperature are guaranteed by design.
4
_______________________________________________________________________________________
3-Wire Interface Full-Speed USB Transceivers
With/Without Internal Series Resistors
Typical Operating Characteristics
(V
BUS
= +5V, V
L
= +3.3V, T
A
= +25°C, unless otherwise noted.)
DIFFERENTIAL RECEIVER PROPAGATION
DELAY vs. V
L
MAX13342E toc01
MAX13342E/MAX13345E
DIFFERENTIAL RECEIVER PROPAGATION
DELAY vs. V
BUS
MAX13342E toc02
SINGLE-ENDED RECEIVER PROPAGATION
DELAY vs. V
L
28
PROPAGATION DELAY (ns)
26
24
22
20
18
16
14
12
10
T
A
= -40°C
1.2
1.5
1.8
2.1
2.4
V
L
(V)
2.7
3.0
3.3
3.6
T
A
= +25°C
T
A
= +85°C
OE = SUS = HIGH
MAX13342E toc03
20
18
T
A
= +85°C
PROPAGATION DELAY (ns)
16
14
12
10
8
6
4
1.2
1.5
1.8
2.1
2.4
V
L
(V)
2.7
3.0
3.3
T
A
= -40°C
T
A
= +25°C
20
18
PROPAGATION DELAY (ns)
16
14
12
10
8
6
4
2
0
T
A
= -40°C
T
A
= +85°C
T
A
= +25°C
30
3.6
4.0
4.3
4.6
4.9
5.2
5.5
V
BUS
(V)
SINGLE-ENDED RECEIVER PROPAGATION
DELAY vs. V
BUS
MAX13342E toc04
TRANSMITTER SKEW
vs. TEMPERATURE
MAX13342E toc05
RECEIVER SKEW
vs. TEMPERATURE
1.4
TRANSMITTER SKEW (ns)
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
MAX13342E toc06
20
18
PROPAGATION DELAY (ns)
16
14
12
10
8
6
4
2
0
4.0
OE = SUS = HIGH
T
A
= +85°C
1.0
0.9
0.8
TRANSMITTER SKEW (ns)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1.5
T
A
= +25°C
T
A
= -40°C
4.3
4.6
4.9
5.2
5.5
-40
-15
10
35
60
85
-40
-15
10
35
60
85
V
BUS
(V)
TEMPERATURE (°C)
TEMPERATURE (°C)
V
L
SUPPLY CURRENT
vs. D+/D- CAPACITANCE
MAX13342E toc07
V
BUS
SUPPLY CURRENT
vs. D+/D- CAPACITANCE
MAX13342E toc08
V
BUS
SUSPEND CURRENT
vs. V
BUS
SUPPLY VOLTAGE
38
V
BUS
SUPPLY CURRENT (µA)
36
34
32
30
28
26
24
22
20
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
MAX13342E toc09
26
24
V
L
SUPPLY CURRENT (mA)
22
20
18
16
14
12
10
8
0
1.7
1.6
V
BUS
SUPPLY CURRENT (mA)
1.5
1.4
1.3
1.2
1.1
1.0
V
L
= 2.5V
40
22 44 66 88 110 132 154 176 198 220
CAPACITANCE (pF)
0
22 44 66 88 110 132 154 176 198 220
CAPACITANCE (pF)
4.0
4.3
4.6
4.9
5.2
5.5
V
BUS
(V)
_______________________________________________________________________________________
5
国产芯片交流
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
