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    • 5. 发明授权
    • Multi-state sense amplifier
    • 多状态读出放大器
    • US07486546B2
    • 2009-02-03
    • US11806636
    • 2007-06-01
    • Min-Chuan WangChih-Sheng LinChia-Pao ChangKeng-Li Su
    • Min-Chuan WangChih-Sheng LinChia-Pao ChangKeng-Li Su
    • G11C11/00
    • G11C7/062G11C7/06G11C11/1673G11C11/5607G11C2207/063G11C2211/5634G11C2211/5645
    • The invention provides a multi-state sense amplifier, coupled to at least one memory cell with changeable resistance and a plurality of reference cells. The first current mirror circuit, coupled to the output terminal of the memory cell, generates a second memory cell current at a first node according to a first memory cell current through the memory cell. The second current mirror circuit, coupled to the output terminal of the reference cells, generates a plurality of second reference currents at a plurality of second nodes according to a plurality of first reference currents through the reference cells. The load circuit, coupled to the first node, the second nodes, and a ground, provides equal loads for the second memory cell current and the second reference currents to respectively generate a memory cell voltage at the first node and a plurality of reference voltages at the second nodes.
    • 本发明提供一种多状态读出放大器,耦合到具有可变电阻的至少一个存储单元和多个参考单元。 耦合到存储器单元的输出端的第一电流镜电路根据通过存储单元的第一存储单元电流在第一节点产生第二存储单元电流。 耦合到参考单元的输出端的第二电流镜电路根据通过参考单元的多个第一参考电流在多个第二节点处产生多个第二参考电流。 耦合到第一节点,第二节点和地的负载电路为第二存储器单元电流和第二参考电流提供相等的负载,以分别在第一节点处产生存储单元电压和多个参考电压 第二个节点。
    • 6. 发明申请
    • Multi-state sense amplifier
    • 多状态读出放大器
    • US20080007992A1
    • 2008-01-10
    • US11806636
    • 2007-06-01
    • Min-Chuan WangChih-Sheng LinChia-Pao ChangKeng-Li Su
    • Min-Chuan WangChih-Sheng LinChia-Pao ChangKeng-Li Su
    • G11C11/02G11C7/06
    • G11C7/062G11C7/06G11C11/1673G11C11/5607G11C2207/063G11C2211/5634G11C2211/5645
    • The invention provides a multi-state sense amplifier, coupled to at least one memory cell with changeable resistance and a plurality of reference cells. The first current mirror circuit, coupled to the output terminal of the memory cell, generates a second memory cell current at a first node according to a first memory cell current through the memory cell. The second current mirror circuit, coupled to the output terminal of the reference cells, generates a plurality of second reference currents at a plurality of second nodes according to a plurality of first reference currents through the reference cells. The load circuit, coupled to the first node, the second nodes, and a ground, provides equal loads for the second memory cell current and the second reference currents to respectively generate a memory cell voltage at the first node and a plurality of reference voltages at the second nodes.
    • 本发明提供一种多状态读出放大器,耦合到具有可变电阻的至少一个存储单元和多个参考单元。 耦合到存储器单元的输出端的第一电流镜电路根据通过存储单元的第一存储单元电流在第一节点产生第二存储单元电流。 耦合到参考单元的输出端的第二电流镜电路根据通过参考单元的多个第一参考电流在多个第二节点处产生多个第二参考电流。 耦合到第一节点,第二节点和接地的负载电路为第二存储器单元电流和第二参考电流提供相等的负载,以分别在第一节点处产生存储器单元电压和多个参考电压 第二个节点。