Block write power reduction memory with reduced power consumptio

Details Block write power reduction memory with reduced power consumptio Block write power reduction memory with reduced power consumptio

1997-05-28

1998-07-14

Nelms, David C.

Static information storage and retrieval

Addressing

Plural blocks or banks

36523006, G11C 800

Patent

active

057814961

ABSTRACT:
A video memory device has a normal write mode and a block write mode, and includes a global write driver driving global input/output (I/O) lines, and a number of local write drivers, each driving local I/O lines coupled to a number of memory cells. Control circuitry is coupled to the global write driver and to the local write drivers, and is adapted to generate block write control signals and normal write control signals. The block write control signals cause the write data path to freeze during a block write cycle, thereby conserving power during block writes.

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Pinkham R. et al., "A 128.times.8 70MHz Multiport video RAM with Auto Register Reload and 8.times.4 Block Write Feature," IEEE Journal of Solid-State Circuits, 23.5:1133-1139 (Oct. 1988).
Samsung Electronics, "256k .times. 32 CMOS Window RAM Drive KM4232W259A," (Sep. 1993).
Wilson R., "Samsung Opens `Window` on Dual-Port Video Ram," Electronic Engineering Times, Issue No. 772 (Nov. 1993).

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