Semiconductor device having output buffer circuit controlled by

Details Semiconductor device having output buffer circuit controlled by Semiconductor device having output buffer circuit controlled by

1989-12-27

1991-04-02

Popek, Joseph A.

Static information storage and retrieval

Read/write circuit

Having particular data buffer or latch

365206, G11C 1134

Patent

active

050051563

ABSTRACT:
In a semiconductor circuit device having a data output buffer circuit for driving an external circuit under the control of an output control signal, the device comprises an output detecting circuit for detecting the level changes in the data signal which is inputted to the data output buffer circuit. The output detecting circuit may also detect the level changes in the output control signal. The device further comprises a holding circuit for holding the output level of other related input circuits, for example an external signal input circuit, based on the detection of the level changes by the output detecting circuit, whereby possible output noises attendant on the data outputting operation of the data output buffer circuit are prevented from affecting the operation of the other related input circuits.

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