UTC 75323 LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R113-007,A
MULTIPLE RS-232 DRIVERS AND
RECEIVERS

DESCRIPTION
The UTC 75323 combines five drivers and three
receivers. The flow-through design of the UTC 75323
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 UTC 75323 provide a rugged,
low-cost solution for this function.
The UTC 75323 complies with the requirements of
the ANSI TIA/EIA-232-Fand 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 UTC 75323 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 UTC 75323 is characterized for operation over a
temperature range of 0℃ to 70℃ .

FEATURES
*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 UTC 75232.


SOP-20
DIP-20