Texas Instruments SN75LV4737ADBLE, SN75LV4737ADBR Datasheet

SN75LV4737A

3.3-V/5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

SLLS178D – APRIL 1994 – REVISED FEBRUARY 2000

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D

Single-Chip and Single-Supply Interface for
IBM PC/A T Serial Port

D

Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.11 Standards

D

Operates With 3.3-V or 5-V Supplies

D

One Receiver Remains Active During
Standby (Wake-up Mode)

D

Designed to Operate at 128 kbit/s Over a
3-m Cable

D

Low Standby Current ...5 µA Max

D

ESD Protection on RS-232 Pins Meets or
Exceeds 4 kV (HBM) and 1.5 kV (HBM) on
All Pins Per MIL-STD-883, Method 3015

D

External Capacitors . . . 0.1 µF
(VCC = 3.3 V . . . Five External Capacitors)
(VCC = 5 V . . . Four External Capacitors)

D

Accepts 5-V Logic Input With 3.3-V Supply

D

Applications
– RS-232 Interface
– Battery-Powered Systems, PDAs
– Notebook, Laptop, and Palmtop PCs
– External Modems and Hand-Held

Terminals

D

Packaged in Shrink Small-Outline Package

description

The SN75L V4737A

‡

consists of three line drivers, five line receivers, and a charge-pump circuit. It provides the
electrical interface between an asynchronous communication controller and the serial-port connector, and
meets the requirements of TIA/EIA-232-F . This combination of drivers and receivers matches those needed for
the typical serial port used in an IBM PC/A T or compatibles. The charge pump and five small external capacitors
allow operation from a single 3.3-V supply, and four capacitors allow operation from a 5-V supply.

The device has flexible control options for power management when the serial port is inactive. A common
disable for all of the drivers and receivers is provided with the active-high STBY input. The active-low EN

input
is an enable for one receiver to implement a wake-up feature for the serial port. All the logic inputs can accept
signals from controllers operating from a 5-V supply, even though the SN75LV4737A is operating from 3.3 V.

The SN75LV4737A is characterized for operation over the temperature range of 0°C to 70°C.

Copyright  2000, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

‡

Patent-pending design

IBM and PC/AT are trademarks of International Business Machines Corporation.

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V

DD

C2+

V

CC

C2–

EN

C1+
DIN1
DIN2
DIN3

ROUT1
ROUT2
ROUT3
ROUT4
ROUT5

C3+
GND
C3–
V

SS

C1–
STBY
DOUT1
DOUT2
DOUT3
RIN1
RIN2
RIN3
RIN4
RIN5

DB PACKAGE

†

(TOP VIEW)

†

The DB package is only
available in left-ended tape and
reel (order part number
SN75LV4737ADBR).

SN75LV4737A

3.3-V/5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

SLLS178D – APRIL 1994 – REVISED FEBRUARY 2000

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Function Tables

EACH DRIVER

INPUTS

OUTPUT

DIN STBY

DOUT

X H Z
L LH
H LL

Open L L

H = high level, L = low level,
X = irrelevant, Z = high
impedance

EACH RECEIVER

INPUTS

OUTPUTS

STBY EN RIN5 RIN1–RIN4 ROUT5 ROUT1–ROUT4

H H X X Z Z
H LH X L Z
H LL X H Z
L XL L H H
L X H H L L

H = high level, L = low level, X = irrelevant, Z = high impedance

SN75LV4737A

3.3-V/5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

SLLS178D – APRIL 1994 – REVISED FEBRUARY 2000

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

logic diagram (positive logic)

DIN1

DIN2

DIN3

RIN1

RIN2

RIN3

RIN4

RIN5

STBY

EN

DOUT1

DOUT2

DOUT3

ROUT1

ROUT2

ROUT3

ROUT4

ROUT5

7

8

9

19

18

17

16

15

23

5

22

21

20

10

11

12

13

14

SN75LV4737A

3.3-V/5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

SLLS178D – APRIL 1994 – REVISED FEBRUARY 2000

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

schematics of inputs and outputs

STBY AND EN INPUTS

V

CC

GND

Input

V

SS

V

CC

GND

V

SS

TYPICAL RECEIVER INPUTS

V

CC

GND

TYPICAL DRIVER INPUTS

V

CC

GND

V

DD

TYPICAL OF ALL DRIVER OUTPUTS

TYPICAL OF ALL

RECEIVER OUTPUTS

V

SS

Output

300 Ω

Output

GND

5 kΩ

Input

Input

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

†

Supply voltage, VCC 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Positive output supply voltage, VDD (see Note 1) 15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Negative output supply voltage, V

SS

–15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range, VI: Driver –3 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Receiver –30 V to 30 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage range, VO: Driver VSS – 0.3 V to VDD + 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Receiver –0.3 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance, θ

JA

(see Note 2) 62°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

stg

–65°C to 150°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 under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. All voltages are with respect to network GND.

2. The package thermal impedance is calculated in accordance with JESD 51.