Product Summary

The S6551P is an asynchronous communication adapter intended to provide interfacing for the microproceesors to serial communication data sets and modems. A unique feature is the inclusion of an on-chip programmable baud rate generator, with a crystal being the only external component required.

Parametrics

S6551P absolute maximum ratings: (1)supply votlage VCC: -0.3 to 7.0V; (2)input/output voltage VIPN: -0.3 to 7.0V; (3)operating temperature range TA: 0 to 70℃; (4)storage temperature range Tstg: -55 to 150℃.

Features

S6551P features: (1)on chip baud rate genrator; (2)programmable interrupt and status register to simplify software design; (3)single +5Volt power supply; (4)serial echo mode; (5)false start bit detection; (6)8 ibt bi-directional data bus for direct communication with the microprocessor; (7)external 16x clock input for non-standadrd baud rates.

Diagrams

S6551P block diagram