Microcomputer having reduced power consumption through impedance

Details Microcomputer having reduced power consumption through impedance Microcomputer having reduced power consumption through impedance

1995-11-30

1997-05-20

Ray, Gopal C.

Boots, shoes, and leggings

364707, 3642731, 3642732, 3642733, 364DIG1, 395558, G06F 126, G06F 132

Patent

active

056320400

ABSTRACT:
A microcomputer comprising a clock circuit which selects a pulse signal as a system clock of the microcomputer from among a plurality of pulse signals and a power source impedance controlling circuit which controls an impedance between a power input terminal and the units of the microcomputer based on the frequency of the pulse signal selected by the clock circuit to provide the electric power to the units of the microcomputer. The power source impedance controlling circuit controls the impedance such that the power source impedance is made lower as the frequency of the selected pulse signal is higher.

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patent: 5021679 (1991-06-01), Fairbanks et al.
patent: 5153535 (1992-10-01), Fairbanks et al.
patent: 5184025 (1993-02-01), McCurry et al.
patent: 5426755 (1995-06-01), Yokouchi et al.
patent: 5442314 (1995-08-01), Hara
patent: 5461266 (1995-10-01), Koreeda et al.
patent: 5469561 (1995-11-01), Takeda

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