FS9922-DMM4-DS-11 查看數據表（PDF） - Unspecified

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FS9922-DMM4-DS-11

Integrated Circuits of 6,000 Counts Auto-ranging Digital Multimeter with Bar Graph

Unspecified 

FS9922-DMM4

13 SGND

14 SA

15 DT

I ADC Negative input of analog ground

I/O

80 SELECT

ADC Input of Current measurement /mV

I High impedance input /Input of 81〜83 NC

O

Temperature & hFE Measurement

Diode measurement Voltage Divide

I

84 RST

I

Resistance connection point

Measurement Function

Select

No use

CPU Reset

ADC Positive Input of Resistance

16 SMV

Measurement

I

85 PWDT I

/Diode measurement Voltage Divide

No use

17 CRES1

18 RL

19 RCAP1

20 RCAP2

21 ONEK

22 TENK

23 HUNK

24 ONEM

25 TENM

26〜28 NC

point

I

Connection point of filter capacitor in

resistance measurement

86

XOUT1 O

Oscillator Connection

Negative input of referenced voltage in

I

87 XIN1 I

resistance measurement

Oscillator Connection

point

O

Capacitor Measurement Connection

Point

O

Capacitor Measurement Connection

Point

I 1.001kΩResistance connection point

88 MEA4

89 MEA3

90 MEA2

I 10.01kΩ Resistance connection point

91 MEA1

I 101.01kΩResistance connection point

92 TXD

I

1.111MΩResistance

Voltage

connection

point

93

MEA5

I 10.000MΩResistance connection point

94 TXEN

No Connection

95 INT

I/O

Measurement Function

Select

I/O Measurement Function

Select

I/O Measurement Function

Select

I/O Measurement Function

Select

I/O RS232 Output

I/O Measurement Function

Select

I/O Operation→L,

Sleep→H

I/O External Interrupt Input

29 VB

I Analog Circuit Bias Current Input

96 VSS

I

Negative Power Supply

30 AGND I/O Analog Signal Ground

97 NC

No Connection

31〜62 SEG32 〜

SEG1

O

LCD Segment 32〜1

63〜66 COM4 〜

COM1

O

LCD Common Driver Output 4 1

98 OP1N I

100 OP2O O

Buffer OPAMP Reverse

Input

Rectifying

Output

OPAMP

67 RLCD

I/O LCD Bias Voltage Input

Note：I—Input；O—Output；I/O—Input / Output.

Rev. 1.1

8/39

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