Multi-port memory device

Details Multi-port memory device Multi-port memory device

1993-02-05

1995-09-12

LaRoche, Eugene R.

Static information storage and retrieval

Read/write circuit

Simultaneous operations

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

Patent

active

054503558

ABSTRACT:
A multi-port memory device includes a row-column array, a random access port, a plurality of bidirectional serial access memory (SAM) ports, and a switching network. There is one SAM port for each of a plurality of sets of columns. The switching network selectively couples each SAM port with each set, each set with each other set, and each SAM port with each other SAM port. A video random access memory (VRAM) or a multi-port dynamic random access memory (DRAM) of the present invention provides increased flexibility in smaller die area.

REFERENCES:
patent: 4825411 (1989-04-01), Hamano
patent: 4851834 (1989-07-01), Stockebrand et al.
patent: 4855959 (1989-08-01), Kobayashi
patent: 4891794 (1990-01-01), Hush et al.
patent: 5065369 (1991-11-01), Toda
patent: 5121360 (1992-06-01), West et al.
patent: 5265049 (1993-09-01), Watanabe

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