Data output circuit of a semiconductor memory device

Details Data output circuit of a semiconductor memory device Data output circuit of a semiconductor memory device

1993-11-01

1995-01-24

Popek, Joseph A.

Static information storage and retrieval

Read/write circuit

Having particular data buffer or latch

36518907, 365190, 365202, 327 51, G11C 700

Patent

active

053847369

ABSTRACT:
A data output circuit of a semiconductor memory device matches an equalizing level of voltages at data lines in a pair with a logic threshold voltage of data output buffers. The data output circuit having an equalizing transistor connected between first and second nodes connected to the outputs of a sense amplifier, includes a threshold voltage control circuit disposed between the sense amplifier and the data output buffers for allowing a threshold voltage of the data output buffers to match with the equalizing level of the voltages at the first and second nodes. The threshold voltage control circuit has the same structure and characteristics as that of the output buffers, so as to ensure that the logic threshold voltage of the data output buffers matches with the equalizing level of the voltages at the first and second nodes.

REFERENCES:
patent: 4858195 (1989-08-01), Soneda
patent: 5268872 (1993-12-01), Fujii et al.

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