Automatic programming and erasing device for electrically erasab

Details Automatic programming and erasing device for electrically erasab Automatic programming and erasing device for electrically erasab

1989-03-24

1991-07-30

Psitos, Aristotelis M.

Static information storage and retrieval

Hardware for storage elements

365218, 365201, 357 74, 174 50, 361391, 369 32, 369100, G11C 700, G11C 1300

Patent

active

050364880

ABSTRACT:
An automatic erasing and programming device for erasable programmable read-only memory chips includes a housing having a working surface with a plurality of receptacles for receiving the memory chips. A source of ultraviolet light is provide for erasing the memory chips by ultraviolet light irradiation. An ultraviolet light source for turning it on and off. A device for determining completion of erasure of all old data in the memory chips is connected to the light source control device for turning it off when all old data are erased. A programming device for programming the memory chips with new data is responsive to the erasure determining device for starting programming with the new data when the old data have been erased.

REFERENCES:
patent: 3984822 (1976-10-01), Simko et al.
patent: 4008945 (1977-02-01), Schere
patent: 4161039 (1979-07-01), Rossler
patent: 4326214 (1982-04-01), Trueblood
patent: 4479203 (1984-10-01), Kuo
patent: 4503524 (1985-03-01), McElroy
patent: 4578751 (1986-03-01), Erwin
patent: 4727221 (1988-02-01), Saitou et al.
Technical Digest, No. 62, Apr. 1981, Wester Electric, p. 21, "Ultraviolet Light EPROM", Eraser by G. J. Turner.
Newark Catalog No. 109, Newark Electronics, Jan. 14, 88, pp. 86-87.

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