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.
- Three 8-bit I/O ports
- Three programmable operation modes
- Bit manipulation command
- Single power supply
Specification Value Supplier Package PDIP-40 (0.6″W)