Static information storage and retrieval – Read/write circuit – Flip-flop used for sensing
Patent
1995-02-15
1996-08-06
Nelms, David C.
Static information storage and retrieval
Read/write circuit
Flip-flop used for sensing
36518909, 365190, 365208, 365227, 365228, 327 55, 327 57, G11C 700
Patent
active
055441106
ABSTRACT:
There is disclosed a sense amplifier for a semiconductor memory device comprising a cross coupled latch for sense-amplifying data signals on bit lines, a pull-up driver connected between the cross coupled latch and a supply voltage source for controlling an amount of current of a supply voltage being supplied to the cross coupled latch, a pull-down driver connected between the cross coupled latch and a ground voltage source for controlling an amount of current of a ground voltage being supplied no the cross coupled latch, and a voltage detector for detecting a difference between the supply voltage and the ground voltage and controlling the pull-up driver and the pull-down driver in accordance with the detected result. According to the present invention, when the voltage difference is high in level, the sense amplifier minimizes a noise component being generated. In the case where the voltage difference is low in level, the sense amplifier amplifies the data signals on the bit lines at a high speed.
REFERENCES:
patent: 4694205 (1987-09-01), Shu et al.
Hyundai Electronics Industries Co,. Ltd.
Nath Gary M.
Nelms David C.
Tran Andrew Q.
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