GD75232

MULTIPLE RS-232 DRIVERS AND RECEIVERS

SLLS206C – MAY 1995 – REVISED JULY 1998

1

POST OFFICE BOX 655303

UART and Serial-Port Connector of IBM

™

PC/AT

™ and Compatibles

ANSI Standard TIA/EIA-232-F and ITU

Recommendation V.28

120 kbit/s

SN75185

Small-Outline (DW), Shrink Small-Outline

(DB) Packages, and DIPs (N)

description

The GD75232 combines three drivers and five receivers from TI

™ trade-standard SN75188 and SN75189

bipolar quadruple drivers and receivers, respectively. The pinout matches the flow-through design of the

SN75C185 to decrease the part count, reduce the board space required, and allow easy interconnection of the

UART and serial-port connector of an IBM

™ PC/AT™ and compatibles. The bipolar circuits and processing of

the GD75232 provide a rugged, low-cost solution for this function at the expense of quiescent power and

external passive components relative to the SN75C185.

The GD75232 complies with the requirements of the TIA/EIA-232-F and ITU (formerly CCITT) V.28 standards.

These standards are for data interchange between a host computer and a peripheral at signaling rates up to

20 kbit/s. The switching speeds of the GD75232 are fast enough to support rates up to 120 kbit/s with lower

capacitive loads (shorter cables). Interoperability at the higher signaling rates cannot be expected unless the

designer has design control of the cable and the interface circuits at both ends. For interoperability at signaling

rates up to 120 kbit/s, use of ANSI TIA/EIA-423-B (ITU V.10) and TIA/EIA-422-B (ITU V.11) standards is

recommended.

The GD75232 is characterized for operation over the temperature range of 0

°C to 70°C.

Copyright

© 1998, 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.

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20

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11

RA1

RA2

RA3

DY1

DY2

RA4

DY3

RA5

RY1

RY2

RY3

DA1

DA2

RY4

DA3

RY5

GND

DB, DW, OR N PACKAGE

(TOP VIEW)

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.

TI is a trademark of Texas Instruments Incorporated.

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