Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Particular stable state circuit
Patent
1996-08-30
1998-06-09
Wambach, Margaret Rose
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Particular stable state circuit
327208, 327212, H03K 3037
Patent
active
057640890
ABSTRACT:
A high-performance dynamic flip-flop circuit implementation. The dynamic flip-flop circuit comprises an "implicit" one-shot to generate a delayed clock output (319). The flip-flop comprises a delay block (317) coupled to a clock input (305). The flip-flop may be a D-type flip-flop. In a positive-edge-triggered embodiment of the flip-flop, a falling edge (440) of the delayed clock output (319) follows a rising edge (444) of a clock signal after a delay period (448). The flip-flop clocks in new data at a data input (305) in response to the clock input (310) during this delay period (448). Data is held in a storage block (360). The flip-flop has extremely good transient characteristics, especially set-up and clock-to-output times. The flip-flop consumes no static power.
REFERENCES:
patent: 5517145 (1996-05-01), Frank
patent: 5646566 (1997-07-01), Ross, Jr. et al.
Bowhill William, "A 300 MHz 64b Quad-Issue CMOS RISC Microprocessor," 1995 IEEE International Solid-State Circuits Conference entitled Digest of Technical Papers, First Edition, Catalogue No. 95CH35753, Session 10, Microprocessors, Paper TP 10.7, pp. 182-183, 362.
Chappell Terry, "A 2-ns Cycle, 3.8-ns Access 512-kb CMOS ECL SRAM With a Fully Pipelined Architecture," IEEE Journal of Solid-State Circuits, vol. 26, No. 11, Nov. 1991, pp. 1577-1585.
Dobberpuhl Daniel, "A 200-MHZ 64-b Dual-Issue CMOS Microprocessor," IEEE Journal of Solid-State Circuits, vol. 27, No. 11, Nov. 1992, pp. 1555-1567 .
Burd Robert C.
Di Gregorio Luigi
Draper Donald A.
Partovi Hamid
Salim Udin
Altera Corporation
Wambach Margaret Rose
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