Single Chip With Easy Interface Between
UART and Serial-Port Connector of an
External Modem or Other Computer
Peripheral
Five Drivers and Three Receivers Meet or
Exceed the Requirements of ANSI Standard
TIA/EIA-232-F and ITU Recommendation
V.28 Standards
Supports Data Rates up to 120 kbit/s
Complement to the GD75232
Provides Pin-to-Pin Replacement for the
Goldstar GD75323
Pin-Out Compatible With SN75196
Functional Replacement for the MC145405

description
The GD75323 combines five drivers and three receivers from the trade-standard SN75188 and SN75189
bipolar quadruple drivers and receivers, respectively. The flow-through design of the GD75323 decreases the
part count, reduces the board space required, and allows easy interconnection of the UART and serial-port
connector. The all-bipolar circuits and processing of the GD75323 provide a rugged, low-cost solution for this
function.
The GD75323 complies with the requirements of the ANSI 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 signal rates
up to 20 kbit/s. The switching speeds of the GD75323 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 assured 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 Standard TIA/EIA-423-B and TIA/EIA-422-B and ITU Recommendations V.10
and V.11 are recommended.
The GD75323 is characterized for operation over a temperature range of 0°C to 70°C.