Datasheet Summary
(l)UMC
UM6520 / UM6520A
Peripherald",',,""''"'"''''''''.''''' Interface Adapte,(PIA)
Features
- Direct replacement for Motorola MC6820
- Single +5V power supply
- Two 8-bit bi-directional I/O ports with individual data direction control
- CMOS-patible peripheral port A lines
- Automatic "handshake.' control of data transfers
- Programmable interrupt capability
- Automatic initialization on power up
- 1 and 2 MHz versions
General Description
The UM6520/A peripheral Interface Adapter (PIA) is designed to provide a broad range of peripheral control to microputer systems. Control of peripheral devices is acplished through two 8-bit bi-directional I/O ports.
Each I/O line may be...