Flash memory and a microcomputer

Details Flash memory and a microcomputer Flash memory and a microcomputer

1994-07-13

1995-08-22

Popek, Joseph A.

Static information storage and retrieval

Powering

365185, 36518909, 365900, G11C 1300

Patent

active

054446643

ABSTRACT:
A microcomputer mounted on a single semiconductor chip includes a central processing unit and a nonvolatile flash memory which allows the information to be processed by the central processing unit to be re-programmed by electrical erasing and programming operations. The microcomputer is provided with a normal power supply voltage terminal and a programming power supply voltage terminal and also incorporates a power supply voltage level detection device and an internal voltage boost circuit to decide the re-programming mode for the flash memory according to the level of the voltage supplied and to select between the boost voltage and the external high voltage in performing the erasing and programming of data.

REFERENCES:
patent: 5172342 (1992-12-01), Gochi

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