Importance

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Abstract

A static random access memory cell comprising a first inverter, a second inverter, a first transistor, a second transistor, and a third transistor. The first inverter is cross-coupled with the second inverter. The first transistor is connected with a write word line, a write bit line, and a first output node of the first inverter. The second transistor is connected with a complementary write bit line, the write word line, and a second output node of the second inverter. The third transistor is connected with a read bit line, a read word line, and the first input node of the first inverter to form a read port transistor, and a read port is formed. The read port transistor has a feature of asymmetric threshold voltage, and the read bit line swing can be expanded by the decrease of clamping current or the boosted read bit line.

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First Claim