| 摘要 |
PROBLEM TO BE SOLVED: To shorten an access time when a memory is accessed by an address output circuit. SOLUTION: This circuit has not such constitution that an address signal given by a host device is latched and this latched contents are decoded, but has such constitution that an address signal is decoded directly before latching and a decoded result is latched. That is, a given address signal is decoded directly by a decoding circuit D, and a memory cell is activated in accordance with this decoded result. This decoded result is latched in a latch circuit K with timing with which a chip selecting signal is shifted to a valid state, and the memory cell is activated by address signals AD0-AD3 being this latched contents.
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