Semiconductor storage device

Details Semiconductor storage device Semiconductor storage device

1997-06-24

1998-09-15

Fears, Terrell W.

Static information storage and retrieval

Read/write circuit

Precharge

36518901, 36523001, 365226, G11C 1300

Patent

active

058089500

ABSTRACT:
The invention provides a semiconductor storage device (RAM) which prevents discharging of a non-selected column, reduces the precharging time of a bit line and a complementary bit line, reduces the writing time upon writing into a memory cell and reduces the power consumption. The semiconductor storage device Includes a current line connected commonly to memory cells of each column of a memory cell array, and a current limiting circuit interposed between each current line and a power supply line. The current limit circuit is controlled in response to a column selection signal so that the value of current flowing through the memory cells of the column is different depending upon whether the column is selected or not selected.

REFERENCES:
patent: 5193073 (1993-03-01), Bhuva

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