Microcomputer, microcomputer containing apparatus, and IC card

Details Microcomputer, microcomputer containing apparatus, and IC card Microcomputer, microcomputer containing apparatus, and IC card

1994-12-22

1997-07-01

Beausoliel, Jr., Robert W.

39518221, 39518401, 39518508, G06F 1100

Patent

active

056447027

ABSTRACT:
A microcomputer includes a CPU, a RAM for storing data, an oscillation circuit and a battery. The CPU has a first threshold for a power supply voltage for ensuring normal operation. The oscillation circuit supplies an oscillation signal to the CPU and also has a second threshold for a power supply voltage for ensuring normal operation. The second threshold is higher than the first threshold.

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C. H. Roth, Jr., Fundamentals of logic design, West Publishing Co., St. Paul, Minnesota, 1979, pp. 555-558, SA Fig. A-14.
Computer Dictionary, Microsoft Press.

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