Invention Grant
- Patent Title: Timing detection circuit, semiconductor device, and memory system having delay elements in matrix
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Application No.: US17168692Application Date: 2021-02-05
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Publication No.: US11550507B2Publication Date: 2023-01-10
- Inventor: Yohei Yasuda
- Applicant: Kioxia Corporation
- Applicant Address: JP Tokyo
- Assignee: Kioxia Corporation
- Current Assignee: Kioxia Corporation
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JPJP2020-135909 20200811
- Main IPC: G06F3/06
- IPC: G06F3/06

Abstract:
A timing detection circuit includes: a delay circuit in which a plurality of cascade connected delay elements are arranged in a matrix; a plurality of odd-numbered row column lines provided in each column for each set by dividing odd-numbered rows into a plurality of sets; a plurality of even-numbered row column lines provided in each column for each set by dividing even-numbered rows into a plurality of sets; a first logical operation circuit performs a logical operation on levels of the odd-numbered row column lines and outputs a first operation result to a second latch; a second logical operation circuit performs a logical operation on levels of the plurality of even-numbered row column lines and outputs a second operation result to a third latch; and a control circuit given the first operation result and controls charging of the odd-numbered and even-numbered row column lines based on the second clock.
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