MC74HCT74A_06 Datasheet, PDF (4/6 Pages) ON Semiconductor – Dual D Flip−Flop with Set and Reset with LSTTL Compatible Inputs

MC74HCT74A
SWITCHING WAVEFORMS
t_r
t_f
CLOCK
2.7 V
1.3 V
3V
0.3 V
GND
t_w
1/f_max
90%
Q OR Q _{1.3 V}
10%
t_PLH
t_TLH
t_PHL
t_THL
Figure 1.
SET OR
RESET
Q OR Q
Q OR Q
CLOCK
t_w
3V
1.3 V
GND
t_PHL
1.3 V
t_PLH
1.3 V
t_rec
3V
1.3 V
GND
Figure 2.
VALID
3V
DATA
1.3 V
GND
t_su
t_h
3V
CLOCK
1.3 V
GND
Figure 3.
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
C_L*
*Includes all probe and jig capacitance
Figure 5.
4, 10
SET
2, 12
DATA
1, 13
RESET
3, 11
CLOCK
Figure 4. Expanded Logic Diagram
5, 9
Q
6, 8
Q
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