uPD71055GB

 Datasheet  UPD71055GB-8
The uPD71055 is a low-power CMOS programmable parallel interface unit for use in microcomputer systems.
Typically, the unit’s three I/O ports interface peripheral devices to the system bus.Features
– Three 8-bit I/O ports.
– Three programmable operation modes.
– Bit manipulation command.
– Microcomputer compatible.
– CMOS technology.
– Single +5V 10% power supply.
– Industrial temperature range: -40 to +85 C.
– 8MHz and 10 MHz.