Revision as of 20:48, 17 February 2016

AMD Am2900
Am2903 Enhanced ALU
Developer	AMD
Manufacturer	AMD
Type	microprocessors
Production	1975-1998
Architecture	4-bit bit-slice
Word size	4-bit "-bit" is not declared as a valid unit of measurement for this property.
Technology	Bipolar
Clock	1 MHz-31 MHz
Package	DIP40, DIP42

The AMD Am2900 is a family of 4-bit bit-slice chips designed by Advanced Micro Devices and introduced to the market in August 1975. Each component represents an individual unit in a microprocessor. Designed to be flexible and expandable, those chips were capable of emulating a large number of existing systems. Made in bipolar technology allowed for higher speeds (1-20Mhz, later up to 32). Its flexibility, higher speed, unusually large amount of 2nd sources, and good marketing allowed AMD to dominate the bit-slice market. To date, the Am2900 family is used as the de facto baseline for bit-slice design.

2nd sources

The Am2900 had a large number of 2nd sources:

Members

Design

The family includes two 4-bit ALUs - 2901 and a 2903. The AM2901/A was the original chip designed, supporting 8 different basic operations. The AM2903/A was an enhanced version designed a bit later which included 7 additional operations. The slices can be stacked to produce 8, 12, or 16 data paths and memory addresses for use in larger programs.

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