©

1995

DATA SHEET

MOS INTEGRATED CIRCUIT

RS-232 LINE DRIVER/RECEIVER

The

µPD4711B is a high-voltage silicon gate CMOS line driver/reciever conforming to the EIA/TIA-232-E standard.

It can operate with a single +5 V power source because it is provided with a DC-DC converter. In addition, this line

driver/receiver has many ancillary functions, including output control, threshold select, and standby functions.

Because the

µPD4711B is provided with two output driver circuits and two receiver circuits, it can constitute an RS-

232 interface circuit with a single chip.

FEATURES

•

Conforms to EIA/TIA-232-E (RS-232C) standard

•

+5 V single power source

•

Threshold select pin selecting two types of threshold voltages

•

Standby mode can be set by making standby pin high to reduce circuit current.

•

Three-state output configuration. Both driver and receiver outputs go into high-impedance state in standby mode.

ORDERING INFORMATION

Part Number

Package

µPD4711BCX

20-pin plastic DIP (300 mil)

µPD4711BGS

20-pin plastic SOP (300 mil)

The information in this document is subject to change without notice.

Document No. S10315EJ3V1DS00 (3rd edition)

Date Published April 1997 N

Printed in Japan