发明名称 Low power SRAM memory cell having a single bit line
摘要 A semiconductor memory cell having a word line, a bit line, a precharge line, an access transistor, and first and second cross-coupled inverters. The first inverter includes a first P-channel transistor and a first N-channel transistor, and the second inverter includes a second P-channel transistor and a second N-channel transistor. The access transistor selectively couples the bit line to an output of the first or second inverter, and one terminal of the first N-channel transistor is connected to the precharge line. In a preferred embodiment, a control circuit is provided that, during a writing operation, supplies data to be written to the memory cell to the bit line, supplies a pulse signal to the precharge line, and activates the word line. A method of writing data to a semiconductor memory cell that is coupled to a word line and single bit line is also provided. According to the method, the level of the bit line is set in accordance with data to be written, the memory cell is precharged so as to force the output of one of the inverters of the memory cell to a predetermined logic level, and the word line is activated to couple the bit line to the memory cell.
申请公布号 US6212094(B1) 申请公布日期 2001.04.03
申请号 US19980200075 申请日期 1998.11.25
申请人 STMICROELECTRONICS S.R.L. 发明人 RIMONDI DANILO
分类号 G11C11/412;(IPC1-7):G11C11/00 主分类号 G11C11/412
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