Z84C9008VSG Datasheet PDF - Zilog

The Z80 series Serial/Parallel Counter/Timer KIO is a multichannel, multipurpose I/O peripheral device designed to provide the end user with a powerful solution to meet an assortment of peripherals requirements. The Z84C90 KIO peripheral combines the features of one Z84C30 CTC, one Z84C20 PIO and a Z84C4x SIO, plus an 8-bit, bit-programmable I/O port and a crystal oscillator. Utilizing fifteen internal registers for data and programming information, the KIO can easily be configured to any given system environment. Although optimum performance is obtained with a Z84C00 CPU, the KIO can just as easily be used with any other CPU.

● Two independent synchronous/asynchronous serial channels

● Three 8-bit parallel ports

● Four independent counter/timer channels

● On-chip clock oscillator/driver

● Software/hardware resets

● Designed in CMOS for low power operations

● Supports Z80 Family interrupt daisy chain

● Programmable interrupt priorities

● 8, 10 and 12.5MHz Bus clock frequency

● Single 5V supply