SPIKING NEURAL NETWORK DEVICE, NONVOLATILE MEMORY DEVICE, AND OPERATION METHOD THEREOF

    公开(公告)号:US20230215498A1

    公开(公告)日:2023-07-06

    申请号:US17959356

    申请日:2022-10-04

    IPC分类号: G11C16/04 G11C16/08 G11C16/24

    摘要: A spiking neural network device comprises at least one NAND cell string including a first NAND cell string that includes a string select transistor and a plurality of nonvolatile memory cells between a bit line and a ground select line, a string control circuit configured to generate a string selection signal to turn on the string select transistor in response to an input spike, a word line decoder configured to generate a word line selection signal for selecting a word line of a plurality of word lines for each of the plurality of nonvolatile memory cells in response to the input spike, a plurality of sensing circuits connected to the bit line, respectively corresponding to the plurality of word lines, each sensing circuit configured to generate an output spike according to a current transmitted through the bit line when a corresponding word line is selected, a plurality of switch transistors, each configured to connect one of the plurality of sensing circuits to the bit line according to a switch selection signal, and a switch decoder configured to generate a switch selection signal in synchronization with the word line selection signal for a selected word line.