Fast sense amplifier with bit-line pre-charging
    23.
    发明授权
    Fast sense amplifier with bit-line pre-charging 有权
    具有位线预充电的快速放大器

    公开(公告)号:US09576653B1

    公开(公告)日:2017-02-21

    申请号:US15150478

    申请日:2016-05-10

    Inventor: Chung-Cheng Chou

    Abstract: A bit-line of a resistive memory cell includes a reference branch including a reference resistor having a predetermined value and a cell branch including an adjustable memory resistor having a variable value. The reference branch generates a reference current based on the predetermined value of the reference resistor and the cell branch generates a cell branch current based on a selected value of the adjustable memory resistor. A sense amplifier has a first input coupled to the reference branch and a second input coupled to the cell branch. A first pre-charge transistor is coupled to a first pre-charge voltage and the cell branch. The first pre-charge transistor is configured to pre-charge the cell branch to the first pre-charge voltage prior to a read operation.

    Abstract translation: 电阻性存储单元的位线包括具有预定值的参考电阻器的参考分支和包括具有可变值的可调节存储器电阻器的单元分支。 参考分支基于参考电阻器的预定值产生参考电流,并且单元分支基于可调节存储电阻器的选定值产生单元分支电流。 读出放大器具有耦合到参考分支的第一输入和耦合到单元分支的第二输入。 第一预充电晶体管耦合到第一预充电电压和电池分支。 第一预充电晶体管被配置为在读取操作之前将单元分支预充电到第一预充电电压。

    Operating Resistive Memory Cell
    25.
    发明申请
    Operating Resistive Memory Cell 有权
    工作电阻式存储单元

    公开(公告)号:US20150206583A1

    公开(公告)日:2015-07-23

    申请号:US14161193

    申请日:2014-01-22

    Abstract: A circuit that includes a current source and a current comparator is disclosed. The current source is connected to a resistive memory cell to generate a driving current thereto. The current comparator has a sensing node connected to the current source and the resistive memory cell to sense an injection current injected to the current comparator through the sensing node, wherein when a resistive state of the resistive memory cell switches such that the current comparator determines that an amount of the injection current increases to exceed or decreases to reach threshold value, the current comparator turns off the current source.

    Abstract translation: 公开了一种包括电流源和电流比较器的电路。 电流源连接到电阻存储器单元以产生驱动电流。 电流比较器具有连接到电流源和电阻存储器单元的感测节点,以感测通过感测节点注入到电流比较器的注入电流,其中当电阻性存储器单元的电阻状态切换使得电流比较器确定 注入电流的量增加到超过或者减小到达阈值时,电流比较器关闭电流源。

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