The Z80 PIO Parrallel I/O Circuit is a programmable, dual port device that provides TTL-compatible interface between peripheral devices and the Z80 CPU. The CPU Configures the Z80 PIO to interface with a wide range of peripheral devices that are compatible with the Z80 PIO include most keyboards, paper tape readers and punches, printer, and PROM programmers.
Feature
Programmable Interrupts on Peripheral Status Conditions
Two 8-Bit Ports w/Handshake
4 Programmable Operating Modes
Low Power Consumption
8 Port B Outputs that can drive Darlington Transistors
16 I/O Lines
Emulation Mode
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
