Three port random access memory

Details Three port random access memory Three port random access memory

1988-06-20

1990-01-02

Hecker, Stuart N.

Static information storage and retrieval

Read/write circuit

Simultaneous operations

36523009, 365221, 365239, 36523005, G11C 700, G11C 1140, G11C 800

Patent

active

048917940

ABSTRACT:
A three port memory device has two serial ports and a random access memory port. The random access memory port is addressed to a random access memory in a conventional manner, using RAS and CAS address signals. Data may also be supplied and retrieved through two serial ports to a pair of serial access memories for transfer between the serial ports and the random access memory. This configuration permits formatted data to be simultaneously assessed through the two serial ports, while the random access memory port is being accessed.

REFERENCES:
patent: 4120048 (1978-10-01), Fuhrman
patent: 4646270 (1987-02-01), Voss
patent: 4648077 (1987-03-01), Pinkham et al.
patent: 4747081 (1988-05-01), Heilveil et al.
patent: 4794566 (1988-12-01), Richards et al.

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