(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-compatible peripheral port A lines
Automatic "handshake.' control of data transfers Programmable interrupt ca...
