MC14043B, MC14044B
THREE–STATE ENABLE/DISABLE DELAYS
Set, Reset, Enable, and Switch Conditions for 3–State Tests
MC14043B MC14044B
Test Enable S1
S2
Q
S
R
S
R
tPZH
tPZL
tPHZ
tPLZ
Open Closed A VDD VSS VSS VDD
Closed Open
B
VSS VDD VDD VSS
Open Closed A VDD VSS VSS VDD
Closed Open
B
VSS VDD VDD VSS
TO
OUTPUT
UNDER
TEST
VDD
ENABLE
50%
VSS
tPZH
VDD
90%
QA
10%
tPHZ
VOL
tPZL
tPLZ
VOH
QB
10%
VSS
VDD
S1
1k
CL
50 pF
S2
VSS
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