Leakage compensation read method for memory device

    公开(公告)号:US10475510B2

    公开(公告)日:2019-11-12

    申请号:US15850280

    申请日:2017-12-21

    Abstract: A memory device including an array of memory cells including bit lines, and biasing circuitry cells. A sense amplifier has a data line input connected to a data line, and a reference input. The controllable reference current source can be connected to the reference input of the sense amplifier. Control circuits on the device are configured to cause execution of a read operation, where the read operation includes a first phase in which the array is biased to induce leakage current on the selected bit line, and a second phase in which the array is biased to read a selected memory cell on the selected bit line. A circuit on the device is configured to sample the leakage current in the first phase, and to control the controllable reference current source during the second phase, as a function of the sampled leakage current.

    Circuit for voltage detection and protection and operating method thereof
    67.
    发明授权
    Circuit for voltage detection and protection and operating method thereof 有权
    电压检测和保护电路及其操作方法

    公开(公告)号:US09490624B2

    公开(公告)日:2016-11-08

    申请号:US14472520

    申请日:2014-08-29

    CPC classification number: H02H3/202 G11C5/143 H02H3/20 H02H3/22 H02H3/243 H02H7/22

    Abstract: A circuit for voltage detection and protection comprises a first block, a first voltage detector, a second block and a second voltage detector. The first block receives a first voltage supply. The first voltage detector detects the first voltage supply and generates a first detecting signal when detecting the first voltage supply level is out of the first operating voltage range. The second block receives a second voltage supply. The second voltage detector detects the second voltage supply and generates a second detecting signal when detecting the second voltage supply level is out of the second operating voltage range. The first block performs a protection operation on the circuit when monitoring at least one of the first and second detecting signals.

    Abstract translation: 用于电压检测和保护的电路包括第一块,第一电压检测器,第二块和第二电压检测器。 第一块接收第一个电压源。 第一电压检测器检测第一电压源,并且当检测到第一电压供应电平在第一工作电压范围之外时产生第一检测信号。 第二块接收第二电压源。 第二电压检测器检测第二电压源,并且当检测到第二电压供应电平在第二工作电压范围之外时产生第二检测信号。 当监视第一和第二检测信号中的至少一个时,第一块在电路上执行保护操作。

    Programming method, reading method and operating system for memory
    69.
    发明授权
    Programming method, reading method and operating system for memory 有权
    存储器的编程方法,读取方法和操作系统

    公开(公告)号:US09286158B2

    公开(公告)日:2016-03-15

    申请号:US14173873

    申请日:2014-02-06

    CPC classification number: G06F11/1072 G06F11/1012 H03M13/1575 H03M13/19

    Abstract: A programming method, a reading method and an operating system for a memory are provided. The programming method includes the following steps. A data is provided. A parity generation is performed to obtain an error-correcting code (ECC). The memory is programmed to record the data and the error-correcting code. The data is transformed before performing the parity generation, such that a hamming distance between two codes corresponding to two adjacent threshold voltage states in the data to be performed the parity generation is 1.

    Abstract translation: 提供了一种用于存储器的编程方法,读取方法和操作系统。 编程方法包括以下步骤。 提供数据。 执行奇偶校验生成以获得纠错码(ECC)。 存储器被编程为记录数据和纠错码。 在执行奇偶校验生成之前变换数据,使得对应于待执行奇偶产生的数据中的两个相邻阈值电压状态的两个代码之间的汉明距离为1。

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