Patent ID: 11935582
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. An electronic device, comprising:
a memory; and
a processor coupled to the memory, the processor being configured to perform a method for sense margin detection for a sense amplifier based on instructions stored in the memory, wherein the method comprises:
writing first data and second data respectively to a first memory cell and a second memory cell connected to a first bit line, the first memory cell and the second memory cell being respectively connected to a first word line and a second word line adjacent to each other, and the first bit line being connected to a first sense amplifier;
performing a reverse write operation on the first memory cell and the second memory cell, the reverse write operation comprising reversely writing the second data to the first memory cell and reversely writing the first data to the second memory cell;
performing write operations on memory cells connected to the second bit line, the first word line and the second word line, there being preset row precharge time between adjacent two of the write operations, the second bit line being connected to a second sense amplifier, both the second sense amplifier and the first sense amplifier being positioned in a same sense amplifier array; and
reading the second memory cell, and determining the preset row precharge time to be a margin value of row precharge time of the first sense amplifier when the first data is not correctly read.