| 摘要 |
PROBLEM TO BE SOLVED: To realize, without increasing current consumption, a semiconductor memory in which an output always retuns to Hi-Z(high impedance) and which operates normally even if a prohibited command is inputted. SOLUTION: A semiconductor memory having a common terminal performing input/output of data and outputting data synchronizing with a clock outpz is provided with clock generating circuits 34, 51 for output generating a clock in accordance with the output period of output data DQ and an output circuit 36 outputting data in accordance with a clock. The clock generating circuit for output conducts generation of a clock further for two periods after output of data is completed and then stops clock generation.
|
