Switching master slave circuit

Details Switching master slave circuit Switching master slave circuit

1996-01-19

1998-07-21

Wambach, Margaret Rose

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Particular stable state circuit

327403, 327407, H03K 3289

Patent

active

057839581

ABSTRACT:
A master-slave-master latch circuit for loading data vertically or horizontally. A first master latch is coupled to an input terminal for receiving data. Under control of a clock, the data is transferred from the master latch to a slave latch input terminal. Under control of the slave latch clock, the data is shifted horizontally into the slave latch. Under control of a further horizontal shift clock the data is shifted to a further master latch. The slave circuits are organized in a vertical column fashion so that data may be shifted vertically up or down the slave latches as provided from the master latch. Feedback circuits from the master latch to various positions within the slave latch column permit the data to be selectively transferred from one horizontal level to the prior horizontal level for placing in the vertical column. The horizontal and vertical master slave latch switching circuit can thus be operated as a number of logic elements, including a counter, shift register or other elements under the control of the master clocks.

REFERENCES:
patent: 5124951 (1992-06-01), Slemmer et al.
patent: 5261064 (1993-11-01), Wyland
patent: 5319759 (1994-06-01), Chan
patent: 5453957 (1995-09-01), Norris et al.
patent: 5526320 (1996-06-01), Zagar et al.
patent: 5572536 (1996-11-01), Thiruvengadam
I.B.M. Tech. Disc. Bul., vol. 26, No. 3A, "Effective master-slave latch combination" Clair, pp. 983-984, Aug. 1983.

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