Explain setup time and hold time, and why setup time is important.

Question

Accepted Answer

Setup time and hold time are timing constraints in digital circuits to ensure proper operation of flip-flops.

Setup time is the minimum amount of time data must be stable before the clock edge for it to be reliably sampled.
Hold time is the minimum amount of time data must be stable after the clock edge for it to be reliably sampled.
Setup time violations can lead to metastability issues in flip-flops.
Hold time violations can lead to data corruption in flip-flops.
Setup time is important to ensure that data is stable and valid before being latched by the flip-flop.
Hold time is important to ensure that data remains stable after being latched by the flip-flop.

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