©

1993

DATA SHEET

MOS INTEGRATED CIRCUIT

Document No. S12201EJ2V0DS00 (2nd edition)

(Previous No. IC-3228)

Date Published January 1997 N

Printed in Japan

RS-232 LINE DRIVER/RECEIVER AT 3.3 V/5 V

The

µPD4724 is a high breakdown voltage silicon gate CMOS line driver/receiver based on the EIA/TIA-232-E

standard. This IC features various functions, such as standby, and incorporates a DC/DC converter that switches boost

multiples, enabling operation at both +3.3 V and +5 V single supply voltage.

The

µPD4724 incorporates three drivers and five receivers, so an RS-232 interface circuit can be easily constructed

by connecting five external capacitors.

FEATURES

•

Based on EIA/TIA-232-E (RS-232-C) standard.

•

•

Standby mode: Setting the standby pin to low level switches this IC into the standby mode and makes

the driver outputs high-impedance.

•

Enable mode: When the enable pin is high level during the standby mode, two receivers can operate as inverters

without hysteresis width (The other three receivers are fixed to high level).

ORDERING INFORMATION

Part number

Package

µPD4724GS-GJG

30-pin plastic shrink SOP (300 mil)