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The Zilog eZ80 is an 8-bit microprocessor from Zilog which is an updated version of the company's first product, the Z80 microprocessor. The eZ80 like the Z is binary compatible with the Z80 and Z , but almost three times as fast as the original Z80 chip at the same clock frequency. The eZ80 has a three-stage pipeline. In order to do so, the CPU works in a Zcompatible mode or a full bit address mode. The processor has a bit arithmetic logic unit and overlapped processing of several instructions a so-called pipeline which are the two primary reasons for its speed.
Unlike the older Z and Z it does not have or need a cache memory. Instead, it is intended to work with fast SRAM directly as main memory as this had become much cheaper. Nor does it have the multiplexed bus of the Z, making it as easy to work with interface to as the original Z80 and Z, and equally predictable when it comes to exact execution times.
Like other eZ80 variants, it has an external address and data bus and can thus be used as a general purpose microprocessor as well. From Wikipedia, the free encyclopedia. This article has multiple issues.
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March Learn how and when to remove this template message. San Jose, California : Zilog. September Retrieved May July Z Z Z8 Z8 Encore! Z Encore! Federico Faggin Masatoshi Shima. Single-board microcontroller Special function register. Embedded system Programmable logic controller List of microprocessors. Categories : Zilog microprocessors. Hidden categories: Articles lacking in-text citations from July All articles lacking in-text citations Articles lacking reliable references from March All articles lacking reliable references Articles with multiple maintenance issues.
EZ80 Datasheet PDF