Microcomputer with built-in EPROM and test mode

Details Microcomputer with built-in EPROM and test mode Microcomputer with built-in EPROM and test mode

1987-12-15

1990-02-27

Hecker, Stuart N.

Excavating

365201, 365 94, G11C 700, G11C 1700, G11C 2900

Patent

active

049051911

ABSTRACT:
A single-chip microcomputer comprising a microprocessor which executes information processing in accordance with a predetermined program, and an EPROM which stores the program therein, the EPROM including word line selection means having a plurality of word lines coupled thereto, one of the word lines being brought into a selected state on the basis of a plurality of address signals, and control means for bringing a dummy word line different from the plurality of word lines into a selected state and all of the plurality of word lines into unselected states.

REFERENCES:
patent: 4703453 (1987-10-01), Shinoda et al.
patent: 4719599 (1988-01-01), Natsui et al.
patent: 4731760 (1988-03-01), Maini
"Hitachi Microcomputer System ZTAT Microcomputer HD63701X0 Users Manual", Hitachi 68-1-135 (Translation and Original Japanese Version Enclosed).

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