Data protection circuit

Details Data protection circuit Data protection circuit

1994-03-23

1995-03-07

LaRoche, Eugene R.

Static information storage and retrieval

Addressing

365195, 36523008, 380 4, G11C 800

Patent

active

053964713

ABSTRACT:
A data protection circuit includes an address detection circuit latch circuit and replacing circuit. The address detection circuit,detects that an address signal for designating an address of a semiconductor memory has designated a specified address. The latch circuit latches a detection output of the address detection circuit. The replacing circuit replaces at least one bit of the address signal by readout data of the semiconductor memory in response to a latch output of the latch circuit.

REFERENCES:
patent: 4519036 (1985-05-01), Green
patent: 4521853 (1985-06-01), Guttag
patent: 4590552 (1986-05-01), Guttag et al.
patent: 4864542 (1989-09-01), Oshima et al.
patent: 5014191 (1991-05-01), Padgaonkar et al.
patent: 5155829 (1992-10-01), Koo
patent: 5264742 (1993-11-01), Sourgen

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