This circuit is a flip-flop, or latch, which stores one bit of memory. When you click the set input, it goes low, and the Q output goes high, even after the set input goes high again. When you click the reset input, it goes low, and this brings the Q output down to low. If set and reset are both high, then the output stays the same as it was at the last set or reset.
This page is a utility for simulating sr триггер online with specified initial values.







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