Patent ID: 11942150
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. A resistive random-access memory (RRAM) circuit comprising:
an RRAM device configured to output a cell current responsive to a bit line voltage; and
a current limiter comprising:
an input terminal coupled to the RRAM device;
first and second parallel current paths configured to conduct the cell current between the input terminal and a reference voltage node;
an amplifier configured to generate a first signal responsive to a voltage level at the input terminal and a reference voltage level; and
a delay element configured to generate a second signal responsive to the first signal,
wherein
the first current path comprises a first switching device configured to selectively conduct a first portion of the cell current responsive to the first signal, and
the second current path comprises a second switching device configured to selectively conduct a second portion of the cell current responsive to the second signal.