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DESCRIPTION/ORDERING INFORMATION (CONTINUED)

DIN1

DOUT1

RIN1

ROUT1

DIN2

DOUT2

RIN2

ROUT2

11

10

12

9

14

7

13

8

TRS3232

3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

WITH

±15-kV ESD PROTECTION

SLLS812 – JULY 2007

The TRS3232 device consists of two line drivers, two line receivers, and a dual charge-pump circuit with

±15-kV

ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of

TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the

serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to

5.5-V supply. The devices operate at data signaling rates up to 250 kbit/s and a maximum of 30-V/

μs driver

output slew rate.

FUNCTION TABLES

xxx

INPUT

OUTPUT

DIN

DOUT

L

H

H

L

(1)

H = high level, L = low level

INPUT

OUTPUT

RIN

ROUT

L

H

H

L

Open

H

(1)

H = high level, L = low level,

Open = input disconnected or

connected driver off

LOGIC DIAGRAM (POSITIVE LOGIC)

2

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