Semiconductor memory device

Details Semiconductor memory device Semiconductor memory device

1990-07-12

1992-02-25

Popek, Joseph A.

Static information storage and retrieval

Read/write circuit

Differential sensing

36518909, G11C 700

Patent

active

050918885

ABSTRACT:
A semiconductor memory device comprises memory cells for storing data, reference cells for storing reference data, and an output part supplied with an output signal from the memory cells and a reference signal from the reference cells for comparing the output signal and the reference signal and producing an output signal of the semiconductor memory device indicative of the data stored in the memory cell means on the basis of the comparison. In the present invention, the reference cell includes a plurality of reference cell transistors connected in parallel with each other for storing the reference data such that a same reference data is stored in each of the reference cell transistors.

REFERENCES:
patent: 4648074 (1987-03-01), Pollachek
patent: 4884241 (1989-11-01), Tanaka et al.

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