| 摘要 |
The present invention provides a non-synchronous semiconductor memory device configured as a pseudo-SRAM and capable of relaxing the limitation to address skew and improving the read rate. A data latch circuit 110 holds data having been read out of memory cells in a memory cell array 106 designated by a tow address included in an address ADD in a read mode. Upon transitions of column addresses A0, A1 included in the address, a multiplexer 111 sequentially and non-synchronously feeds out the data held in the data latch circuit 110 based on the column addresses A0, A1.
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