Static information storage and retrieval – Read/write circuit – Signals
Patent
1991-02-08
1994-07-05
Dixon, Joseph L.
Static information storage and retrieval
Read/write circuit
Signals
365200, 36523003, 36523006, 36518905, G11C 700, G11C 800, G11C 2900
Patent
active
053273800
ABSTRACT:
A circuit is provided for replacing a defective signal path (94) of a plurality of like signal paths with a redundant signal path (95, 96). A redundant decoder (72) is programmable to respond to a plurality of predetermined addressing signals (RFn) that normally operate to address the defective signal path (94, ROWL1R and ROWLIL). The redundant decoder is operable to generate a disable signal (RREN) in response to the predetermined addressing signals (RFn) and also is operable to select a redundant signal path (95, 96) in response thereto. A decoding circuit (70, 74) normally decodes selected ones of a plurality of addressing signals (RFn) and selects at least one of a plurality of signal paths in response thereto. The decoding circuit (70, 74) is coupled to the redundant decoder (72) for receiving the disable signal (RREN) therefrom. In response to receiving this disable signal (RREN) the decoding circuit (70, 74) will not decode the preselected addressing signals (RFn).
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patent: 4829480 (1989-05-01), Seo
Kersh, III David V.
Norwood Roger D.
Dixon Joseph L.
Donaldson Richard L.
Kesterson James C.
Neerings Ronald O.
Texas Instruments Incorporated
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