Semiconductor read only memory

Details Semiconductor read only memory Semiconductor read only memory

1978-01-25

1980-12-16

Hecker, Stuart N.

Static information storage and retrieval

Read only systems

Semiconductive

340166R, G11C 1706

Patent

active

042401518

ABSTRACT:
In a circuit arrangement wherein a memory matrix and an address decoder are constructed of read only memories (ROMs), a semiconductor read only memory is characterized in that at least the address decoder ROM in which the number of output lines to be selected is smaller than that of output lines not be selected is made of a longitudinal system in which a plurality of MISFETs are connected in series between respective output lines arranged in a column and a reference voltage terminal, the MISFETs forming a desired pattern in a row, and that current is permitted to flow through only a load MISFET connected with a selected one of the address select lines.

REFERENCES:
patent: 3866186 (1975-02-01), Suzuki
patent: 3934233 (1976-01-01), Fisher et al.
patent: 4016430 (1977-04-01), Kanezuka
patent: 4023122 (1977-05-01), Oura
patent: 4069427 (1978-01-01), Masuda
Wilder et al., Multiple Selective Write Alterable Read-Only Storage, IBM Tech. Disc. Bul., vol. 17, No. 9, 2/75, pp. 2594-2595.

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