发明名称 METHOD AND APPARATUS TO PREVENT HIGH VOLTAGE SUPPLY DEGRADATION FOR HIGH-VOLTAGE LATCHES OF A NON-VOLATILE MEMORY
摘要 An improved cross-coupled CMOS high-voltage latch (100) that is used for storing data bits to be written to memory cells of a non-volatile memory is provided with a switching circuit (116) that, during writing of data bits into the memory cells of the latch, provides a high series impedance between one leg of the latch and ground to limit leakage current. A large number of latches are connected in parallel and their accumulated leakage currents are limited by the switching circuit (116) to prevent overload of a high-voltage generator, such as a charge pump circuit, for the high- voltage latch (100), so that data can be properly written in the memory cells of the non-volatile memory.
申请公布号 WO2008008613(A2) 申请公布日期 2008.01.17
申请号 WO2007US71941 申请日期 2007.06.22
申请人 ATMEL CORPORATION 发明人 SON, JINSHU
分类号 G11C7/10 主分类号 G11C7/10
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