Importance

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Abstract

A mode setting circuit for a semiconductor memory device reduces power consumption and layout area by utilizing a complimentary pair of transistors to sense the state of a fuse. The fuse and complimentary pair of transistors are coupled in series between a power supply and ground. The gates of the transistors are coupled together to receive an input signal. An output signal is generated at a node between the pair of transistors. A latch is coupled to the node to latch the output signal. When the fuse is intact, the circuit generates the output signal responsive to the input signal. When the fuse is blown, the circuit maintains the output signal in a steady state.

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First Claim