Hi,
Could you let me know delay time from A to Qa?
Thanks.
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David Park said:You mean when A is high, If CLK->rising edge then Q->high
Yes, exactly. A and B can change their levels, but you will not see this at Q. Only with a rising edge of CLK, Q will become high when A and B are high or low when A or B or both are low. Of course we are only talking about Qa, the others will be whatever their preceding Qx was. And CLR has to be high, of course.
Dennis