ICM7216A Datasheet, PDF (17/17 Pages) Intersil Corporation – 8-Digit, Multi-Function, Frequency Counters/Timers

ICM7216A, ICM7216B, ICM7216D
INPUT A
11C90
CK1
CK2 QA OC
V_DD
3kΩ
10kΩ
V_DD
FUNCTION SWITCH
OPEN: FREQ.
CLOSED: PERIOD
0.1µF
RESET
10kΩ
1
CONT D1
2
13
CD4016
4
CONT ^D8
3
5
74LS00
3kΩ
V_DD
100pF
V_DD
HOLD
V_DD
V_DD
10kΩ
100kΩ
39pF
39pF
TYP
2N2222
10kΩ
10kΩ
1
V⁺
2
3
DP
4
e
5
g
6
a
7
8
d
9
b
10
c
11
f
12
13
14
8
a
b
c
d
e
f
g
D8
28
27
26
25
24
23
22
ICM7216A
21
20
19
18
17
16
15
22MΩ
D3
10MHz
CRYSTAL
D1
8
D2
D3
D4
D5
4
V_DD
D6
D7
RANGE
D8
D1
D2
4
2N2222
DP
D1
D2
1kΩ
1kΩ
V_SS V_SS
1kΩ
10kΩ
COMMON CATHODE LED DISPLAY
D3
D4
D3
D4
2N2222
40Ω
DP
D8
D7
D6
D5
D4
D3
D2
D1
8
LED
OVERFLOW
INDICATOR
FIGURE 21. 100MHz FREQUENCY, 2MHz PERIOD COUNTER
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Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate
and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which
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