Low power consumption CMOS shift register

Details Low power consumption CMOS shift register Low power consumption CMOS shift register

1984-07-24

1986-12-16

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Shift register

Particular transfer means

377 72, 377 73, 377 75, 377 76, 377 80, 377107, G11C 1900, G11C 700

Patent

active

046302956

ABSTRACT:
A serial input/output device includes a CMOS shift register having a plurality of D-type flip-flops. A detection circuit is associated with the CMOS shift register in order to detect whether the transfer data exists in the CMOS shift register. A gate circuit is provided for applying a transfer clock signal to the CMOS shift register only when the transfer data exists in the CMOS shift register, thereby minimizing the power consumption.

REFERENCES:
patent: 3258696 (1966-06-01), Heymann
patent: 3614632 (1971-10-01), Leibowitz
patent: 3753124 (1973-08-01), Graetz
patent: 4334194 (1982-06-01), Rittenbach
patent: 4472821 (1984-09-01), Mazin et al.

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