MC14518B Motorola, MC14518B Datasheet - Page 4

• Manufacturer Part Number: MC14518B
• Description: (MC14518B / MC14520B) DUAL UP COUNTERS
• Manufacturer: Motorola

MC14518B MC14520B
412
GENERATOR
PULSE
MC14518B
MC14520B
ENABLE
CLOCK
RESET
C
E
R
Figure 2. Switching Time Test Circuit and Waveforms
Q0
Q1
Q2
Q3
Q0
Q1
Q2
Q3
Q0
Q1
Q2
Q3
V DD
V SS
1
1
1
C L
2
2
2
Figure 3. Timing Diagram
3
3
3
4
4
4
C L
5
5
5
6
6
6
C L
7
7
7
8
8
8
9
9
9
C L
10
10
0
11
11
1
CLOCK
20 ns
INPUT
12
12
2
Q
13
13
3
14
14
4
15
15
5
t r
16
6
0
MOTOROLA CMOS LOGIC DATA
t WH
17
7
1
t PLH
18
8
2
9
3
t PHL
0
4
t WL
10%
20 ns
50%
90%
90%
t f
50%
10%
V DD
V SS