UM6520
Description
The UM6520/A peripheral Interface Adapter (PIA) is designed to provide a broad range of peripheral control to microcomputer systems. Control of peripheral devices is accomplished through two 8-bit bi-directional I/O ports.
Key Features
- Direct replacement for Motorola MC6820
- Single +5V power supply
- Two 8-bit bi-directional I/O ports with individual data direction control
- CMOS-compatible peripheral port A lines
- Automatic "handshake.' control of data transfers
- Programmable interrupt capability
- Automatic initialization on power up
- 1 and 2 MHz versions
