Clock Edge Time Three-Row Scan - Electronic Circuits XII: Clocks, Latches, and Timing Closure Step by Step

Edge time is the selected index multiplied by the clock period. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

Edge one at two-second period lands at two seconds

With period 2 seconds, selected edge 1 occurs at 2 seconds.

1\cdot2\ \text{s}=2\ \text{s}

Edge four at the same period lands at eight seconds

With period 2 seconds, selected edge 4 occurs at 8 seconds.

4\cdot2\ \text{s}=8\ \text{s}

A larger period and later edge land at fifteen seconds

With period 3 seconds, selected edge 5 occurs at 15 seconds.

5\cdot3\ \text{s}=15\ \text{s}