Flip-flop control circuit

Details Flip-flop control circuit Flip-flop control circuit

1984-06-29

1986-12-02

Heyman, John S.

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

Shift register

Particular transfer means

307470, 307480, 364900, G11C 700, H03K 1726

Patent

active

046270850

ABSTRACT:
A circuit for controlling flip-flop hold and set-scan operations responds to one state of a HOLD/PASS signal by blocking the provision of a flip-flop CLOCK signal to one or more flip-flops which are to conduct a holding operation. The circuit responds to the pass state of the HOLD/PASS signal by permitting the flip-flop clock to be provided to the control flip-flops so that they can conduct shift or pass operations.

REFERENCES:
patent: 3702463 (1972-11-01), Lesniewski
patent: 3753014 (1973-08-01), Kronies et al.
patent: 3828258 (1974-08-01), Hills et al.
patent: 3970995 (1976-07-01), Baudouin et al.
patent: 3997800 (1976-12-01), Bain
patent: 4137563 (1979-01-01), Tsunoda
patent: 4398103 (1983-08-01), Derzawiec et al.
Motorola Data Sheet for MC10141 Four-Bit Universal Shift Register.
Fairchild Data Sheet for F10141, F10541 Universal Shift Register.

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