What is Setup time?
The minimum time before the active clock edge during which a flip-flop's data input must be stable. Paths that cannot meet it limit the maximum operating frequency.
Field: Logic circuits
Setup time in the explanations
For a flip-flop to capture correctly, data must be stable for a certain time before the clock edge—the setup time.
Which correctly describes the setup time of a flip-flop?The clock period must be at least the clock-to-Q delay plus the path's logic delay plus setup time plus margins such as skew, so the slowest path (the critical path) sets the maximum frequency; a 1 ns total allows at most 1 GHz.
In a synchronous circuit, what determines the maximum clock…
Questions that mention Setup time (2)
Related terms
Flip-flop Hold time Metastability Pipelining Clock skew Combinational circuit De Morgan's theorem Decoder Full adder Glitch