Sense amplifier circuit

Details Sense amplifier circuit Sense amplifier circuit

1990-05-15

1994-03-08

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

365204, 36518906, G11C 700

Patent

active

052930882

ABSTRACT:
A sense amplifier circuit for use in a ROM comprises, an excess charge detecting circuit for producing a detection output when a potential of a bit line exceeds a normal value, and an excess charge discharging circuit which operates in response to said excess charge detecting circuit for discharging a bit line charge and for returning the bit line potential to the normal value.
The excess charge detecting circuit and the excess charge discharge circuit can be realized by a diode connected transistor connected between the bit line and an inverter of the sense amplifier. When the bit line potential is about to exceed the predetermined value, the transistor turns on to prevent the bit line potential from exceeding the predetermined value.

REFERENCES:
patent: 3789312 (1974-01-01), Heller et al.
patent: 4399519 (1983-08-01), Masuda et al.
patent: 4535259 (1985-08-01), Smarandoiu et al.
patent: 4601014 (1986-07-01), Kitano et al.
patent: 4797857 (1989-01-01), Schreck et al.
patent: 4815040 (1989-03-01), Matsui et al.
patent: 4896300 (1990-01-01), Shinagawa et al.
patent: 4939693 (1990-07-01), Tran

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