SYNCHRONIZATION CIRCUIT, SEMICONDUCTOR MEMORY DEVICE, AND SYNCHRONIZATION METHOD FOR SYNCHRONIZING WITH SMALL CIRCUIT SCALE
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United States of America Patent
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Issued Date -
Apr 13, 2023
app pub date -
Sep 27, 2022
filing date -
Oct 7, 2021
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Abstract
A synchronization circuit, a semiconductor storage device, and a synchronization method provided herein, which are capable of performing synchronization on a small circuit scale, includes: a first delay circuit delaying a input synchronization signal by a first predetermined time to generate a first delay synchronization signal; a second delay circuit delaying the first delay synchronization signal by a second predetermined time to generate a second delay synchronization signal; a first synchronization circuit outputting a first output data generated by synchronizing the input data with the input synchronization signal; a second synchronization circuit outputting a second output data generated by synchronizing the input data with the first delay synchronization signal; and a resynchronization circuit resynchronizing the input data with the second delay synchronization signal to update the first output data to the first synchronization circuit when the first output data is inconsistent with the second output data.
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