Data output circuit for semiconductor integrated circuit device

Details Data output circuit for semiconductor integrated circuit device Data output circuit for semiconductor integrated circuit device

1992-07-23

1994-06-28

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307582, 3401462, H03K 1900, G06F 702

Patent

active

053249933

ABSTRACT:
A data output circuit for a semiconductor integrated circuit device for outputting a data signal in sync with an output enable signal externally supplied, including: a comparing circuit for comparing a first data signal being outputted presently with a second data signal to be outputted next, when the data signal to be outputted is changed, and judging whether the first and second data signals are the same or different; a first output circuit for temporarily turning off output transistors and outputting the second data, if the comparing circuit judges that the first and second data signals are different; and a second output circuit for outputting the second data signal without turning off all the output transistors, if the comparing circuit judges that the first and second data signals are the same.

REFERENCES:
patent: 4414676 (1983-11-01), Kraul et al.
patent: 4528660 (1985-07-01), Gentry
patent: 4725812 (1988-02-01), Kloppe

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