NEC D71055C

The uPD71055 is a programmable parallel interface unit for use in microcomputer systems. It has three I/O ports and is capable of operations ranging from basic input/output to high-level operations using handshaking protocols.

Features

• Three 8-bit I/O ports
• Three programmable operation modes
• Bit manipulation command
• CMOS
• Single power supply
• DIP-40