MC74HC393A_14 Datasheet, PDF (5/8 Pages) ON Semiconductor – Dual 4-Stage Binary Ripple Counter

MC74HC393A
SWITCHING WAVEFORMS
CLOCK
Q
t_f
t_r
90%
50%
10%
t_w
1/f_max
t_PLH
t_PHL
90%
50%
10%
t_TLH
t_THL
Figure 1.
V_CC
t_w
RESET
50%
V_CC
GND
GND
t_PHL
Q
CLOCK
50%
t_rec
V_CC
50%
GND
DEVICE
UNDER
TEST
TEST
POINT
OUTPUT
C_L*
Figure 2.
*Includes all probe and jig capacitance
Figure 3. Test Circuit
EXPANDED LOGIC DIAGRAM
CLOCK ^{1, 13}
CQ
DQ
3, 11 _Q1
CQ
DQ
4, 10 _Q2
CQ
DQ
CQ
DQ
5, 9 _Q3
6, 8 _Q4
RESET ^{2, 12}
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