MC74HC4020A Datasheet, PDF (5/8 Pages) ON Semiconductor – 14-Stage Binary Ripple Counter

MC74HC4020A
SWITCHING WAVEFORMS (continued)
Qn
50%
tPLH
VCC
GND
tPHL
Qn+1
50%
Figure 3.
DEVICE
UNDER
TEST
TEST
POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 4. Test Circuit
Q1
Q4
Q5
Q12
Q13
Q14
9
7
5
1
2
3
Clock ¹⁰
Reset ¹¹
CQ
CQ
CQ
CQ
CQ
CQ
CQ
R
CQ
R
CQ
CQ
Q6 = Pin 4
Q7 = Pin 6
Q8 = Pin 13
Q9 = Pin 12
Q10 = Pin 14
Q11 = Pin 15
Figure 5. Expanded Logic Diagram
CQ
C
VCC = Pin 16
GND = Pin 8
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