GENERAL DESCRIPTION

The ST16C550 (550) is a universal asynchronous receiver and transmitter with 16 byte transmit and receive FIFO. It operates at 2.97 to 5.5 volts. A programmable baud rate generator can select transmit and receive clock rates from 50 bps to 1.5 Mbps.

FEATURES

• Pin to pin and functionally compatible to the Industry Standard 16C550

• 2.97 to 5.5 volt operation

• 24MHz clock operation at 5V

• 16MHz clock operation at 3.3V

• 16 byte transmit FIFO

• 16 byte receive FIFO with error flags

• Full duplex operation

• Transmit and receive control

• Four selectable receive FIFO interrupt trigger levels

• Standard modem interface

• Compatible with ST16C450

• Low operating current ( 1.2mA typ.)