ICM7226 Intersil Corporation, ICM7226 Datasheet - Page 15

• Manufacturer Part Number: ICM7226
• Description: 8-Digit Multi-Function Frequency Counter/Timer
• Manufacturer: Intersil Corporation

B IN
D1
D
D
74LS74
D4
V+
P
C
P
C
V+
V+
V+
D8
D2
Q
Q
D1
Q
Q
D8
3k
1N914
3
V+
P
F
R
10k
10k
3
D5
D6
D7
D8
0.1
D3
D2
D4
D1
F
8
FIGURE 21. 40MHz FREQUENCY, PERIOD COUNTER
RESET
8
39pF
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
D8
V
DD
ICM7226B
ICM7226A, ICM7226B
D7
D6
9-29
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
3k
D5
V
DP
DD
g
e
a
d
b
c
f
V
V
DD
DD
D4
HOLD
V
100k
DD
V
Q
Q
DD
39pF
2
P
C
D3
V
CK
V
100k
DD
D
DD
V
22M
74LS74
DD
D4
D1
D2
D3
D2
V
Q
10MHz
CRYSTAL
Q
V
D1
DD
39pF (TYP)
DD
2
C
P
D
CK1
V
IC
8
4
CK
DD
DP
D
P
C
D8
b
d
g
a
c
e
f
V
V
2
DD
DD
Q
Q
OVERFLOW
A IN
3k
V
DD
D
CK2
IC
C
P
V
V
2
DD
DD
Q
Q