Method and circuit to enable wide supply voltage difference in multi-supply memory
    3.
    发明授权
    Method and circuit to enable wide supply voltage difference in multi-supply memory 有权
    多电源存储器中的电源电压差的方法和电路

    公开(公告)号:US09508405B2

    公开(公告)日:2016-11-29

    申请号:US14045589

    申请日:2013-10-03

    CPC classification number: G11C11/419 G11C5/14 G11C7/12

    Abstract: A method and apparatus for operating a memory device with wider difference in array and periphery voltage is presented. The memory device includes a bit line, a complementary bit line, a memory cell, a first pre-charge circuit, and a second pre-charge circuit. The memory cell, the first pre-charge circuit, and the second pre-charge circuit are coupled between the bit line and the complementary bit line. The first pre-charge circuit is configured to pre-charge the bit line and the complementary bit line to a first voltage level. The second pre-charge circuit is configured to pre-charge the bit line and the complementary bit line to a second voltage level that is different than the first voltage level. In some examples, two precharge circuits are configured to operate such that memory access is ensured to be static noise margin safe even under wider difference between two voltage levels.

    Abstract translation: 提出了一种用于操作阵列和外围电压差较大的存储器件的方法和装置。 存储器件包括位线,互补位线,存储单元,第一预充电电路和第二预充电电路。 存储单元,第一预充电电路和第二预充电电路耦合在位线和互补位线之间。 第一预充电电路被配置为将位线和互补位线预充电到第一电压电平。 第二预充电电路被配置为将位线和互补位线预充电到不同于第一电压电平的第二电压电平。 在一些示例中,两个预充电电路被配置为操作,使得即使在两个电压电平之间的较大差异下,也能确保存储器存取是静态噪声容限。

Patent Agency Ranking