| 摘要 |
<p>PURPOSE:To reduce remarkably the power consumption of a queued memory circuit by providing a means for generating and stopping memory timing of a random access memory elememt. CONSTITUTION:A clock generator 103 has a reference clock generating source of XTAL, etc., generates a clock and drives a timing generator through a gate 104. One input of the gate 104 is a signal STOP which comes from a CPU 110, and when this STOP is ''1'', the gate 104 is not opened, therefore, the timing generator cannot generate timing of RAS, CAS, WE, etc. Also, at that time, a refresh operation is also stopped. In case when a memory element of a memory circuit 130 is a DRAM especially, the largest power is consumed at the time of the refresh operation, therefore, a stop of the refresh operation is useful for reducing the power consumptiom.</p> |
