In an active-high circuit, both inputs are tied to ground (0) by default, and the latch is triggered by a high (1) signal on either of the inputs. There are two basic types of circuits used for latches. Therefore a latch can be used as a memory device, and can store one bit of data. A latch maintains its current state indefinitely until a different input signal is received at one of the inputs. ![]() ![]() A latch is a form of sequential circuit that has two stable logic states, high or low.
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