Invention Grant
- Patent Title: Latch circuit and memory device including the same
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Application No.: US17198659Application Date: 2021-03-11
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Publication No.: US11532375B2Publication Date: 2022-12-20
- Inventor: Woo Hyun Paik
- Applicant: SK hynix Inc.
- Applicant Address: KR Gyeonggi-do
- Assignee: SK hynix Inc.
- Current Assignee: SK hynix Inc.
- Current Assignee Address: KR Gyeonggi-do
- Agency: IP & T Group LLP
- Priority: KR10-2020-0110103 20200831
- Main IPC: G11C11/40
- IPC: G11C11/40 ; G11C29/44 ; G11C29/42 ; G11C29/20 ; G11C11/406 ; G11C29/00 ; G11C29/10

Abstract:
A memory device includes a latch circuit suitable for storing an input address as a first latch address in response to a first latch signal, and storing an address, selected between the input address and the first latch address, as a second latch address in response to a second latch signal, a test determining circuit suitable for determining whether a memory cell fail occurs, based on test data, and generating a detection signal corresponding to the determination result, in response to a test mode signal, and a control signal generation circuit suitable for comparing the input address to the first and second latch addresses in response to the detection signal, and selectively enabling the first and second latch signals according to the comparison result.
Public/Granted literature
- US20220068428A1 LATCH CIRCUIT AND MEMORY DEVICE INCLUDING THE SAME Public/Granted day:2022-03-03
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