Sequential logic relies on memory elements like flip-flops and latches to store data across clock cycles. Unlike pure combinational logic, these circuits use feedback loops to maintain a state, making them the foundational building blocks for state machines, counters, and computer memory. Their behavior is synchronized by a central clock signal.
Heard on the job
You can't implement a counter with just gates, you need sequential logic to hold the current value.
Do not mix it up with
- Combinational logic: Combinational logic outputs depend instantly on current inputs, while sequential logic relies on a clock and previous states.