ICL8052/ICL71C03 데이터 시트보기 (PDF) - Intersil
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ICL8052/ICL71C03 Datasheet PDF : 19 Pages
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ICL8052/ICL71C03, ICL8068/ICL71C03
Functional Block Diagram
10kΩ
90kΩ
100kΩ 0.22µF
+15V -15V
-BUF IN BUF OUT -INT IN INT OUT
10kΩ
10µF
REF
OUT
87
6
INT.
3 REF.
300pF
1kΩ 5
1 10
9
11
14
BUFFER
INTEG.
COMP.
-
-
A1
A2
-
+
+
A3
ICL8052/8068
+
-1.2V
+BUF IN 13 +INT IN 12
2
10µF (TYP)
COMP
1µF (TYP) OUT
REF
CAP 1
REF
CAP 2
AZ OUT
AZ IN COMP IN
REF
8
7
ANALOG
INPUT
4
5
10kΩ
10
0.1µF
1
9
2
6
16
SW3
17
5
ZERO
CROSSING
DETECTOR
ANALOG
11
GND
ICL71C03
1
15
6
4
RUN/
+5V
-15V
HOLD
SEVEN-
SEGMENT
DECODER
D5
3 19
MSD
D4
D3
D2
24
25
26
MULTIPLEXER
D1
27
LSD
20 B1
21 B2
22 B3
23 B4
LATCH LATCH LATCH LATCH LATCH
COUNTERS
CONTROL LOGIC
12
2
14
13
18
28
CLOCK 4 1/2 DIGIT/ OVER UNDER STROBE BUSY
IN 3 1/2 DIGIT RANGE RANGE
FIGURE 1.
3-35
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