Invention Grant
- Patent Title: Failure detection circuitry for address decoder for a data storage device
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Application No.: US16510168Application Date: 2019-07-12
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Publication No.: US10706934B2Publication Date: 2020-07-07
- Inventor: Hidehiro Fujiwara , Ching-Wei Wu
- Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW
- Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee Address: TW
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G11C16/08 ; G11C29/02 ; G11C8/10 ; G11C5/02 ; G11C5/06 ; G11C16/10 ; G11C16/34 ; G11C29/14 ; G11C29/00 ; G11C8/08 ; G11C8/20

Abstract:
A data storage device can detect for a failure in decoding of an x-bit row address and/or a y-bit column of an (x+y)-bit address. The data storage device decodes the x-bit row address and/or the y-bit column address to provide wordlines (WLs) and/or bitlines (BLs) to access one or more cells from among a memory array of the data storage device. The data storage device compares one or more subsets of the WLs and/or of the BLs to each other to detect for the failure. The data storage device determines the failure is present in the decoding of the x-bit row address and/or the y-bit column of the (x+y)-bit address when one or more WL and/or BL from among the one or more subsets of the WLs and/or the BLs differ.
Public/Granted literature
- US20190333584A1 FAILURE DETECTION CIRCUITRY FOR ADDRESS DECODER FOR A DATA STORAGE DEVICE Public/Granted day:2019-10-31
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