CD4043BC Datasheet, PDF (2/6 Pages) Fairchild Semiconductor – Quad 3-STATE NOR R/S Latches . Quad 3-STATE NAND R/S Latches

Block Diagrams
CD4043BC
CD4044BC
Truth Tables
CD4043BC
S
R
E
Q
X
X
0
OC
0
0
1
NC
1
0
1
1
0
1
1
0
1
1
1
∆
OC = 3-STATE
NC = No change
X = Don’t care
∆ = Dominated by S = 1 input
∆∆ = Dominated by R = 0 input
CD4044BC
S
R
E
Q
X
X
0
OC
1
1
1
NC
0
1
1
1
1
0
1
0
0
0
1
∆∆
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