Logic D flip-flop structure

Details Logic D flip-flop structure Logic D flip-flop structure

1978-07-07

1980-10-07

Anagnos, Larry N.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307205, 307288, H03K 3286, H03K 3353, H03K 1908, H03K 1920

Patent

active

042270979

ABSTRACT:
A logic D flip-flop structure is disclosed which may have a dynamic, semi-dynamic or static behaviour as far as the clock signal is concerned. The structure of the invention is particularly simple in design and has a minimum number of transistors although it is insensitive to parasitic noise which might affect the control variable D and it does not involve any logical hazards. The basic structure of the invention is schematically represented in FIG. 1.

REFERENCES:
patent: 3267295 (1966-08-01), Zuk
patent: 3619644 (1971-11-01), Vittoz
patent: 3679913 (1972-07-01), Foltz
patent: 3753009 (1973-08-01), Clapper
patent: 3829712 (1974-08-01), Hama
patent: 3829714 (1974-08-01), Vittoz
patent: 3928773 (1975-12-01), Oguey et al.
patent: 4057741 (1977-11-01), Piguet
patent: 4140924 (1979-02-01), Oguey et al.
Vittoz et al., "Complementary Dynamic M.O.S. Logic Circuits", Electronics Letters, vol. 9, No. 4, pp. 77-78, 2/22/73.
Vittoz et al., "Silicon-Gate CMOS Frequency Divider for the Electronic Wrist Watch", IEEE-JSSC, vol. SC-7, No. 2, pp. 100-103; 4/1972.

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