SR Flip-Flop

Has 2 inputs: SS and RR, and 2 outputs: QQ and Q\overline{Q}.

SRQQ’Description
00No ChangeNo ChangeHolds the previous state
0101Resets the output to 0
1010Sets the output to 1
11UndefinedUndefinedInvalid state

Characteristics

Excitation Table

Current State (Q)Next State (Q+)SR
000X
0110
1001
11X0
Written by September 13, 2026 1 min read
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