Patent ID: 11887658
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 3:
4. The data writing method of claim 3, wherein the memory further comprises a plurality of reference bit lines and a plurality of sense amplifiers, each reference bit line is in one-to-one correspondence with each bit line, each sense amplifier is in one-to-one correspondence with each bit line and is connected between a corresponding bit line and a corresponding reference bit line, and reading the old data from the target column to the corresponding bit lines comprises:
reading the old data from the target column;
transmitting the old data to the corresponding bit lines, and transmitting a reference voltage to the corresponding reference bit lines; and
controlling sense amplifiers to amplify voltage differences between connected bit lines and connected reference bit lines, to amplify data on the bit lines and the reference bit lines.