Semiconductor memory device having collective writing mode for w

Details Semiconductor memory device having collective writing mode for w Semiconductor memory device having collective writing mode for w

1997-08-11

1999-04-20

Nelms, David

Static information storage and retrieval

Addressing

Particular decoder or driver circuit

36523003, 3652385, 365201, G11C 800

Patent

active

058963421

ABSTRACT:
In a DRAM column decoder, an OR gate receiving a test signal and an output of a column decoder unit circuit is provided corresponding to each column select line. When test signal is at the active "H" level, all column select lines attain the "H" level and all column select gates are rendered conductive, allowing collective writing row by row. A separate circuit for collective writing is not required, so that the layout area is reduced.

REFERENCES:
patent: 4654849 (1987-03-01), White, Jr. et al.
patent: 5490115 (1996-02-01), Shah et al.
patent: 5712823 (1998-01-01), Gillingham
patent: 5721709 (1998-02-01), Nakamura

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