MC74HC74A Datasheet, PDF (5/8 Pages) ON Semiconductor – Dual D Flip-Flop with Set and Reset

MC74HC74A
SWITCHING WAVEFORMS
tf
tr
tw
VCC
CLOCK
90%
50%
VCC
SET OR
50%
RESET
GND
10%
GND
tPHL
tw
1/fmax
Q OR Q
50%
Q or Q
90%
50%
10%
tPLH
tTLH
tPHL
tTHL
Q OR Q
tPLH
50%
trec
Figure 1.
CLOCK
VCC
50%
GND
Figure 2.
DATA
CLOCK
VALID
50%
tsu
th
50%
Figure 3.
4, 10
SET
2, 12
DATA
1, 13
RESET
TEST POINT
VCC
OUTPUT
GND
DEVICE
UNDER
VCC
TEST
CL*
GND
*Includes all probe and jig capacitance
Figure 4.
EXPANDED LOGIC DIAGRAM
3, 11
CLOCK
5, 9
Q
6, 8
Q
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