MC14520B ON Semiconductor, MC14520B Datasheet - Page 2

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

X = Don’t Care
Clock
X
X
0
1
ENABLE
ENABLE
CLOCK
CLOCK
10
15
MC14518B, MC14520B
1
2
7
9
Enable
X
X
1
0
Q0
Q1
Q2
Q3
V
C
R
PIN ASSIGNMENT
E
BLOCK DIAGRAM
SS
http://onsemi.com
A
A
A
A
A
A
A
TRUTH TABLE
1
2
3
4
5
6
7
8
Reset
0
0
0
0
0
0
1
2
16
15
14
13
12
11
10
9
Increment Counter
Increment Counter
Q0 thru Q3 = 0
V
V
R
V
Q3
Q2
Q1
Q0
E
C
No Change
No Change
No Change
No Change
C
C
DD
SS
DD
B
B
B
Action
B
B
B
B
= PIN 16
= PIN 8
R
R
Q0
Q1
Q2
Q3
Q0
Q1
Q2
Q3
11
12
13
14
3
4
5
6