发明名称 Non-volatile semiconductor memory device and semiconductor memory device
摘要 For each memory block, a predecoder for predecoding an applied address signal, an address latch circuit for latching the output signal of the predecoder, and a decode circuit for decoding an output signal of the address latch circuit and performing a memory cell selecting operation in a corresponding memory block are provided. Propagation delay of latch predecode signals can be made smaller and the margin for the internal read timing can be enlarged. In addition, the internal state of the decoder and memory cell selection circuitry are rest to an initial state when a memory cell is selected and the internal data output circuitry is reset to an initial state in accordance with a state of internal data reading. Thus, a non-volatile semiconductor memory device that can decrease address skew and realize an operation with sufficient margin is provided.
申请公布号 US7286416(B2) 申请公布日期 2007.10.23
申请号 US20050194777 申请日期 2005.08.02
申请人 HITACHI ULSI SYSTEMS CO., LTD. 发明人 OOISHI TSUKASA;UCHIYAMA TOMOHIRO;MIYAZAKI SHINYA
分类号 G11C7/10 主分类号 G11C7/10
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