Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takahiko Ishizu0
Shuhei Nagatsuka0
Date of Patent
March 7, 2017
0Patent Application Number
150837760
Date Filed
March 29, 2016
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A column driver includes an amplifier circuit for amplifying data of a read bit line and a latch circuit for retaining the amplified data. The latch circuit includes a pair of nodes Q and QB for retaining complementary data. Data is read from a memory cell in each write target row to a read bit line, and amplified by the amplifier circuit. The amplified data is written to the node Q (or QB) of the latch circuit. In a write target column, write data is input to the latch circuit through the node Q (or QB) to update data of the latch circuit. Then, in each column, data of the latch circuit is written to a write bit line, and the data of the write bit line is written to the memory cell.
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