Data processing system integrated circuit having modular memory

Details Data processing system integrated circuit having modular memory Data processing system integrated circuit having modular memory

1980-05-29

1984-05-08

Wise, Edward J.

Boots, shoes, and leggings

364490, G06F 1546

Patent

active

044478810

ABSTRACT:
A method of designing and manufacturing a modular integrated circuit for a 4 bit microcomputer family utilizing a modular concept which is adaptable for a variety of applications and specific circuit desgins. The modular circuit is designed as a large block of cells which contains an ALU, instruction decoder, bus structure and a small amount of RAM and ROM as well as ROM control logic. In addition, the block contains attachment points for additional ROM and RAM and for special input/output devices such as I/O bus, timekeeping, A-D, D-A, display drive, communication ports and general purpose control lines.

REFERENCES:
patent: T940013 (1975-11-01), Ho
patent: 3622762 (1971-11-01), Dyer
patent: 3681782 (1972-08-01), Scanlon
patent: 4263651 (1981-04-01), Donath et al.

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