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FS9721B Datasheet(PDF) 4 Page - Fortune Semiconductor Corp.

Part # FS9721B
Description  2,400 counts auto range DMM IC,
PDF  35 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  FORTUNE [Fortune Semiconductor Corp.]
Direct Link  https://www.ic-fortune.com/eng/index.asp
Logo FORTUNE - Fortune Semiconductor Corp.

FS9721B Datasheet(HTML) 4 Page - Fortune Semiconductor Corp.

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FS9721B
Rev. 1.7
4/35
4
Application
Auto-Measurement Palm Mode Digital Multi-Function Meter.
Auto-Measurement Card Digital Multi-Function Meter.
Auto-Measurement Pen Digital Multi-Function Meter.
Auto-Measurement Clinch Meter (Hook Meter, Clamp Meter, etc.)
Number Panel Meter.
5
Block Diagram
BATTERY
CRYSTAL
AC-to-DC
Converter
DMM
Signal
Conditioning
Network
External
Regulation
Voltage Double
Voltage Regulator
Low Battery Detector
&
Bandgap Reference
Oscillator
&
Clock Generator
Rotary Switch
and
Push Button
Microprocessor
LCD Driver
LCD Display
Function,Range
Routers,Opamps,
Comparators
&
Ohm Source
Network
Input
Diagram 1
Block Diagram
6
Pin Diagram
31
SELECT
32
RANGE
33
REL
34
HOLD
35
HZ/DUTY
36
CAP
37
MEA4
38
MEA3
39
MEA2
40
MEA1
41
LCDC1
42
LCDC2
43
TSTA
44
VSS
45
NC
46
AGND
47
NC
48
VDD
49
NC
50
NC
81
COM2
82
COM3
83
COM4
84
ENTX
85
BEEPER
86
BLOUT
87
RST
88
NC
89
REFI
90
REFO
91
FTA
92
NC
93
FTB
94
FTC
95
TSTC
96
OP1N
97
NC
98
OP1O
99
NC
100
OP2P
FS9721B
FS9721B
FS9721B
FS9721B
Diagram 2
100 PIN Package



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