7
DUT
OUTPUT
R
L
(NOTE)
OUTPUT
LOAD
500Ω
C
L
50pF
NOTE: For AC Series Only: When V
CC
= 1.5V, R
L
= 1kΩ.
FIGURE 3. PROPAGATION DELAY TIMES
CD74AC CD74ACT
Input Level V
CC
3V
Input Switching Voltage, V
S
0.5 V
CC
1.5V
Output Switching Voltage, V
S
0.5 V
CC
0.5 V
CC
CD74AC251, CD74ACT251
