Intel MCS-80  
Written by Accutron on 2007-05-07  

Devices included in this entry:

Intel C8080A microprocessor (40-pin cerDIP; pictured in thumbnail)
Intel D8080A microprocessor (40-pin ceramic sandwich DIP)
Intel D8238 system controller (28-pin ceramic sandwich DIP)
Intel C8316A ROM (24-pin cerDIP)
Intel Am9080APC microprocessor (40-pin plastic DIP)


Introduced in 1974, the 8080 is Intel's third microprocessor, and their second 8-bit microprocessor. The 8080 is an extension of Intel's original 8008 architecture, and the direct predecessor of the 8085, 8086 and 8088. Unlike the PMOS-based 4004 and 8008, the 8080 is implemented in NMOS.

While the first-generation Intel microprocessors were best suited to small scale systems like calculators and terminals, the 8080 was selected as the CPU of a number of early microcomputers, such as the Altair 8800 and IMSAI 8080.


Intel C8080A microprocessor.


Intel D8080A microprocessor, later variant with ceramic sandwich carrier.


Intel D8238 system controller.


Intel C8316A, early production example. The C8316A is a 2048 x 8-bit NMOS static ROM, equivalent to the Intel 2316A and 4316A, renamed for inclusion in the MCS-80 family.


AMD Am9080APC, a reverse-engineered clone of the 8080A

This article is part of the [Digital Integrated Circuits] exhibit.

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