Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

1992-08-28

1993-07-13

Heyman, John S.

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

Particular output circuits for counter

377111, 377 47, 377 48, 328 60, 328 61, 328 62, H03L 718

Patent

active

052280675

ABSTRACT:
A semiconductor integrated circuit of this invention includes an oscillation circuit formed on a semiconductor substrate, a frequency dividing circuit formed on the semiconductor substrate, for dividing a frequency of an oscillation output from the oscillation circuit, clocked inverters for selectively permitting one of an original oscillation frequency signal of the oscillation circuit and outputs of the frequency dividing circuit to pass therethrough, an output circuit for outputting a signal selected by the cocked inverters, and a frequency dividing circuit controlling NAND circuit for interrupting the operation of the frequency dividing circuit while the original oscillation frequency signal of the oscillation circuit is being output from the output circuit.

REFERENCES:
patent: 4165490 (1979-08-01), Howe, Jr. et al.
patent: 4223268 (1980-09-01), Shimizu
patent: 4658406 (1987-04-01), Pappas
patent: 4695804 (1987-09-01), Bardl et al.
Patent Abstract of Japanese Patent No. 59062933, publication date Oct. 4, 1984, Inventor: Akao Yasushi, Title: CMOS Data Processor.
Patent Abstract of Japanese Patent No. 62236212, publication date Oct. 16, 1987, Inventor: Oimura Katsuhiko, Title: Counter Device.

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