Static information storage and retrieval – Read/write circuit – Differential sensing
Patent
1998-11-24
1999-11-16
Nguyen, Tan T.
Static information storage and retrieval
Read/write circuit
Differential sensing
36518902, 365200, G11C 700
Patent
active
059869569
ABSTRACT:
A repair control circuit for decreasing the driving current, fuse-cutting time and chip size by disabling a main sense amplifier without having to blow a fuse to reduce the driving current, the repair control circuit including: a column coding controller for outputting a column coding signal, a block repair controller for outputting a block repair signal, an input/output repair control signal for receiving the column coding signal and the clock repair signal and outputting a main sense amplifier disable signal, an input/output repair control signal, an input/output enable signal and a repair sense amplifier enable signal; a main sense amplifier for receiving data from a data bus and amplifying the same in accordance with a control of the main sense amplifier disable signal and the sense amplifier enable signal; a repair sense amplifier for receiving data, which is to be repaired, from the data bus and amplifying the same in accordance with a control of the input/output repair control signal, the repair sense amplifier enable signal and the sense amplifier enable signal from the input/output repair controller; and a multiplexer for selectively outputting the amplified data from the main sense amplifier and the repair sense amplifier.
REFERENCES:
patent: 5438546 (1995-08-01), Ishac et al.
patent: 5455798 (1995-10-01), McClure
patent: 5497347 (1996-03-01), Feng
LG Semicon Co. Ltd.
Nguyen Tan T.
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