69

Corporation

SIGNAL PROCESSING EXCELLENCE

DESCRIPTION…

The SP303 is a single chip device that offers both RS-232 and AppleTalk™ interfaces. When

configured for RS-232 mode the SP303 has 4 drivers and 4 receivers. When the part is

programmed for AppleTalk mode, the SP303 supports Macintosh–type ports. All drivers and

receivers can operate at data rates up to 1 Mbps. The differential driver used for transmitting data

signals is equipped with a tri-state function. The SP303 is available in a 28–pin SOIC package

for operation over the commercial temperature range.

s Single chip serial transceiver supports

s Programmable Selection of Interface

s 4 RS-232 Drivers and 4 RS-232

Receivers

s

±30V Receiver Input Levels

s Surface Mount Packaging

SP303

RS232/AppleTalk™ Serial Transceiver

GND

VCC

+5V INPUT

VDD

+12V INPUT

VEE

–12V INPUT

SELECT

A

B

SP303

Corporation

SIGNAL PROCESSING EXCELLENCE