| 摘要 |
<p>PURPOSE:To reduce an occupancy area as small as possible by uniting two orthogonal memories. CONSTITUTION:When a decode signal in which a first memory cell 1 of some memory cell block column is selected, is inputted to a second word line selecting means, a word line for reading is selected. Then, data is read out from a first memory cell of each pair of memory of a memory cell block selected by the selected word line to a corresponding data read-out bit line. Parallel serial conversion is performed by reading out data from the first memory cell of each pair of memory cell of a residual memory cell block column in the same way. Since a first word line selecting means, a data input bit line, and second word lines for writing WA1, WB1 are not used during this read-out operation, data can be written in a second memory cell 3 in a memory cell block of a row using these lines and the like. Thereby, parallel serial conversion can be performed without interruption, and a occupancy area can be reduced.</p> |
