Partial memory selection using a programmable decoder

Details Partial memory selection using a programmable decoder Partial memory selection using a programmable decoder

1982-12-27

1986-12-30

Shaw, Gareth D.

Static information storage and retrieval

Read only systems

Fusible

365189, 365230, G11C 1700, G11C 1300

Patent

active

046334297

ABSTRACT:
A technique for providing a partial memory of one half of the possible storage bits comprised of any two quadrants is implemented by decoupling the one of four decoder used for normal operation and providing a programmable decoder which is capable of being programmed to select one of any two quadrants. If only one quadrant is to form the partial memory, the programmable decoder can be programmed to select only one latch. In another embodiment, a decoder is provided which can also be programmed to select one of any three quadrants.

REFERENCES:
patent: 3872450 (1975-03-01), Reynolds
patent: 4101974 (1978-07-01), Immer et al.
patent: 4365319 (1982-12-01), Takemae
patent: 4392211 (1983-07-01), Nakano et al.
patent: 4441167 (1984-04-01), Principi
patent: 4477739 (1984-10-01), Proebsting et al.
patent: 4488266 (1984-12-01), Spence
patent: 4532607 (1985-07-01), Uchida
patent: 4539658 (1985-09-01), Shimohigashi et al.
patent: 4542485 (1985-09-01), Iwahashi et al.

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