MC14520B ON Semiconductor, MC14520B Datasheet - Page 5

• Manufacturer Part Number: MC14520B
• Description: (MC14518B / MC14520B) Dual Up Counters
• Manufacturer: ON Semiconductor

GENERATOR
PULSE
MC14518B
MC14520B
ENABLE
CLOCK
RESET
Q0
Q1
Q2
Q3
Q0
Q1
Q2
Q3
C
E
R
Figure 2. Switching Time Test Circuit and Waveforms
Q0
Q1
Q2
Q3
V
DD
V
1
1
1
SS
2
2
2
3
3
3
4
4
4
MC14518B, MC14520B
C
L
Figure 3. Timing Diagram
5
5
5
http://onsemi.com
6
6
6
C
L
7
7
7
8
8
8
C
5
9
9
9
L
10
10
0
11
11
1
C
L
12
12
2
13
13
3
CLOCK
20 ns
INPUT
14
14
4
15
15
Q
5
16
6
0
17
7
1
t
r
18
8
2
t
WH
9
3
t
PLH
0
4
t
PHL
t
WL
10%
20 ns
50%
90%
90%
t
f
50%
10%
V
V
DD
SS