Z84C90

KIO Serial/Parallel Counter Timer

PS011802-0902

1

Z84C90

KIO Serial/Parallel Counter/Timer

Product Specification

Features

General Description

ZiLOG’s Z84C90 Serial/Parallel/Counter/Timer KIO is a multi-channel, multipurpose I/O

device designed to provide the end-user with a cost-effective and powerful solution to

meet peripheral needs. The Z84C90 combines the features of one Z84C30 CTC, one

Z84C20 PIO, a Z84C4x SIO, a 8-bit, bit-programmable I/O port, and a crystal-oscillator

into a single package (84-pin PLCC or 100-pin LQFP). Using fifteen internal registers for

data and programming information, the KIO can easily be configured to any given system

environment. Although the optimum performance is obtained with a Z84C00 CPU, the

KIO can just as easily be used with any other CPU.

Table 1. Z84C90 KIO Serial/Parallel/Counter/Timer Packages

Part Number

Package

Frequency (MHz)

Z84C9008ASC

100-pin LQFP

8

Z84C9010ASC

100-pin LQFP

10

Z84C9008VEC

84-pin PLCC

8

Z84C9008VSC

84-pin PLCC

8

Z84C9010VSC

84-pin PLCC

10

Z84C9012VSC

84-pin PLCC

12