D-Latch (Data Latch)
G D Ps Ns 0 X Q Q 1 0 X 0 1 1 X 1 1?0 D 1 D
D
Q
G
Q’
When G=1, Q follows D (transparent mode)
When G=0, retain old value
When G=1?0 (falling edge), latch D value
D is the Data input G is the Gate input
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