公开(公告)号：US20230023614A1

公开(公告)日：2023-01-26

申请号：US17385313

申请日：2021-07-26

Applicant: Xilinx, Inc.

Inventor： Michael Tsivyan ,  Shidong Zhou ,  Karthy Rajasekharan ,  Weiguang Lu ,  Jing Jing Chen ,  Mehul Vashi

IPC: G11C11/419 ,  G11C11/418 ,  H01L27/11

Abstract: First and second sensing circuits are coupled to first and second data lines, respectively, and sense levels of current leakage or a memory cell state on the first and second data lines. First and second keeper circuits are coupled to the first and second data lines, respectively, and drive the first and second data lines by a voltage supply through biased transistors. First and second leakage latches are coupled to receive and latch state of signals output from the first and second sensing circuits, respectively. A control circuit is coupled to the first leakage latch, second leakage latch, and outputs of the first and second sensing circuits. The control circuit is configured to select either the signal output from the first sensing circuit or the signal output from the second sensing circuit in response to states of the first and second leakage latches.

公开(公告)号：US12148464B2

公开(公告)日：2024-11-19

申请号：US17385313

申请日：2021-07-26

Applicant: Xilinx, Inc.

Inventor： Michael Tsivyan ,  Shidong Zhou ,  Karthy Rajasekharan ,  Weiguang Lu ,  Jing Jing Chen ,  Mehul Vashi

IPC: G11C11/419 ,  G11C11/418 ,  H10B10/00

Abstract: First and second sensing circuits are coupled to first and second data lines, respectively, and sense levels of current leakage or a memory cell state on the first and second data lines. First and second keeper circuits are coupled to the first and second data lines, respectively, and drive the first and second data lines by a voltage supply through biased transistors. First and second leakage latches are coupled to receive and latch state of signals output from the first and second sensing circuits, respectively. A control circuit is coupled to the first leakage latch, second leakage latch, and outputs of the first and second sensing circuits. The control circuit is configured to select either the signal output from the first sensing circuit or the signal output from the second sensing circuit in response to states of the first and second leakage latches.