Sense amplifiers and semiconductor memory devices for...

Details Sense amplifiers and semiconductor memory devices for... Sense amplifiers and semiconductor memory devices for...

2007-08-03

2009-08-11

Ho, Hoai V (Department: 2827)

Static information storage and retrieval

Read/write circuit

Particular read circuit

C365S189050, C365S203000, C365S205000, C365S207000

Reexamination Certificate

active

07573756

ABSTRACT:
In a sense amplifier, a current amplifier outputs a first and a second voltage signal in response to a first control signal. The first and second voltage signals are output based on a detected current difference between a pair of input/output lines. A voltage amplifier generates a third and a fourth voltage signal based on a detected voltage difference between the first and second voltage signals. The third and a fourth voltage signals are generated in response to a second control signal. A first latch circuit latches the third and fourth voltage signals, and outputs a first output signal in response to the second control signal. A second latch circuit latches the first and second voltage signals and outputs a second output signal in response to a third control signal. An output circuit performs a logic operation on the first output signal and the second output signal, and outputs a result of the logic operation as a resultant signal.

REFERENCES:
patent: 6424577 (2002-07-01), Sim
patent: 6483351 (2002-11-01), Sim
patent: 6483353 (2002-11-01), Kim et al.
patent: 2002-288982 (2002-10-01), None
patent: 1020010093475 (2001-10-01), None
patent: 10200020069552 (2002-09-01), None
patent: 10-0382734 (2003-04-01), None
patent: 1020050097065 (2005-10-01), None

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