R65NC22 Datasheet (Rockwell) - Versatile Interface Adapter

R65NC22, Versatile Interface Adapter

The R65NC22 Versatile Interface Adapter (VIA) is a very flexible I/O control device.

In addition, this device contains a pair of very powerful 16-bit interval timers, a serial-to-parallel/parallelto serial shift register and input data latching on the peripheral ports.

Expanded handshaking capabilit

R65NC22 Features

* Low power CMOS N-well silicon gate technology

* Fully compatible with NMOS 6522 devices

* Two 8-bit bidirectional I/O ports

* Two 16-bit programmable timer/counters

* Serial bidirectional peripheral I/O

* TTL compatible peripheral control lines