Circuit and method for selectively overdriving a sense amplifier

Details Circuit and method for selectively overdriving a sense amplifier Circuit and method for selectively overdriving a sense amplifier

1998-10-01

2000-08-01

Elms, Richard

Static information storage and retrieval

Read/write circuit

Differential sensing

36518907, 327 54, G11C 702

Patent

active

060976535

ABSTRACT:
An overdriving control circuit includes a comparator for receiving a sense amplifier enable signal and comparing a voltage of bit line or bit bar line with a reference voltage, and a sense amplifier driving unit for logically combining the sense amplifier enable signal and an output signal of the comparator and outputting a control signal of a switch which selectively supplies an internal voltage and an external voltage. The circuit senses a variation of the external voltage or a bouncing of source voltage and controls the overdriving region, thereby obtaining a sufficient overdriving region and accelerating the operation of a sense amplifier.

REFERENCES:
patent: 4460985 (1984-07-01), Hoffman
patent: 5255231 (1993-10-01), Oh
patent: 5572475 (1996-11-01), Yim et al.
patent: 5909402 (1999-06-01), Joo

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