ZiLOG Z80 series User Manual

Z80 CPU
User’s Manual
UM008005-0205 Manual Objectives
xix
Manual Objectives
This user manual describes the architecture and instruction set of the Z80
CPU.
About This Manual
ZiLOG recommends that the user read and understand everything in this
manual before setting up and using the product. However, we recognize
that users have different styles of learning: some will want to set up and
use their new evaluation kit while they read about it; others will open
these pages only to check on a particular specification. Therefore, we
have designed this manual to be used either as a how to procedural
manual or a reference guide to important data.
Intended Audience
This document is written for ZiLOG customers who are experienced at
working with microprocessors or in writing assembly code or compilers.
Manual Organization
The Z80 CPU User’s Manual is divided into four chapters.
Overview
Presents an overview of the User’s Manual Architecture, Pin descriptions,
timing and Interrupt Response.
Hardware and Software Implementation
Presents examples of the User’s Manual hardware and software.

ZiLOG Z80 series Specifications

General

Architecture	8-bit
Address Bus	16-bit
Data Bus	8-bit
Addressable Memory	64 KB
Manufacturer	ZiLOG
Model	Z80
Year Introduced	1976
Package	DIP, PLCC, QFP
Interrupt Modes	Mode 0, Mode 1, Mode 2
Instruction Count	158
Interrupts	Maskable, Non-maskable
Power Supply	5V