Dual-port memory has the serial register connected to the storag

Details Dual-port memory has the serial register connected to the storag Dual-port memory has the serial register connected to the storag

1993-12-15

1995-12-12

Nguyen, Viet Q.

Static information storage and retrieval

Addressing

Multiplexing

36523005, 365221, 36518902, 36518905, G11C 700, G11C 1300

Patent

active

054756499

ABSTRACT:
A dual-port memory includes an array of dynamic storage cells and a serial register having a plurality of static stages. Each stage of the serial register is arranged for receiving a data bit from a selected storage cell of the array. A plurality of bitlines is interposed between the storage cells of the array and the stages of the serial register. At one time only a single selectable bitline is arranged for interconnecting each of the columns of storage cells with each of the stages of the serial register. Each stage of the serial register includes a latch disabling circuit for selectively enabling and disabling coupling from an output of one amplifier to an input of another amplifier. By disabling such coupling, new data easily can be written into the serial register stage. A keeper circuit in each stage of the serial register reduces power consumption.

REFERENCES:
patent: 4870621 (1989-09-01), Nakada
patent: 4984214 (1991-01-01), Hiltebeitel et al.
patent: 4987559 (1991-01-01), Miyauchi et al.
patent: 5260905 (1993-11-01), Mori
patent: 5321665 (1994-06-01), Balistreri et al.
patent: 5325329 (1994-06-01), Inoue et al.
patent: 5327386 (1994-07-01), Fudeyasu

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