GD75232
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS206C – MAY 1995 – REVISED JULY 1998
DB, DW, OR N PACKAGE
(TOP VIEW)
Single Chip With Easy Interface Between
UART and Serial-Port Connector of IBM
PC/AT and Compatibles
V
V
CC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
DD
Meets or Exceeds the Requirements of
ANSI Standard TIA/EIA-232-F and ITU
Recommendation V.28
RA1
RA2
RA3
DY1
DY2
RA4
DY3
RA5
RY1
RY2
RY3
DA1
DA2
RY4
Designed to Support Data Rates up to
120 kbit/s
Pinout Compatible With SN75C185 and
SN75185
13 DA3
12 RY5
ESD Protection to 2 kV on Bus Terminals
11
V
GND
SS
Package Options Include Plastic
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.
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.
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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