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ZiLOG Z80 series User Manual

ZiLOG Z80 series
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User’s Manual
Z80 CPU
UM008005-0205 Manual Objectives
xxii
Register Access Abbreviations
Register access is designated by the following abbreviations:
Trademarks
Z80, Z180, Z380 and Z80382 are trademarks of ZiLOG, Inc.
Designation Description
R Read Only
R/W Read/Write
W Write Only
– Unspecified or indeterminate

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ZiLOG Z80 series Specifications

General IconGeneral
Architecture8-bit
Address Bus16-bit
Data Bus8-bit
Addressable Memory64 KB
ManufacturerZiLOG
ModelZ80
Year Introduced1976
PackageDIP, PLCC, QFP
Interrupt ModesMode 0, Mode 1, Mode 2
Instruction Count158
InterruptsMaskable, Non-maskable
Power Supply5V

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