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MCP3914 bảng dữ liệu(PDF) 17 Page - Microchip Technology

tên linh kiện MCP3914
Giải thích chi tiết về linh kiện  3V Eight-Channel Analog Front End
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DS20005216A-page 17
MCP3914
3.0
PIN DESCRIPTION
The description of the pins are listed in Table 3-1.
TABLE 3-1:
EIGHT CHANNEL MCP3914 PIN FUNCTION TABLE
MCP3914
UQFN
Symbol
Function
1
CH2+
Non-Inverting Analog Input Pin for Channel 2
2
CH2-
Inverting Analog Input Pin for Channel 2
3
CH3-
Inverting Analog Input Pin for Channel 3
4
CH3+
Non-Inverting Analog Input Pin for Channel 3
5
NC
No Connect
6
NC
No Connect
7
CH4+
Non-Inverting Analog Input Pin for Channel 4
8
CH4-
Inverting Analog Input Pin for Channel 4
9
CH5-
Inverting Analog Input Pin for Channel 5
10
CH5+
Non-Inverting Analog Input Pin for Channel 5
11
CH6+
Non-Inverting Analog Input Pin for Channel 6.
12
CH6-
Inverting Analog Input Pin for Channel 6
13
CH7-
Inverting Analog Input Pin for Channel 7
14
CH7+
Non-Inverting Analog Input Pin for Channel 7
15
REFIN+/OUT
Non-Inverting Voltage Reference Input and Internal Reference Output Pin
16
REFIN-
Inverting Voltage Reference Input Pin
17
AGND
Analog Ground Pin, Return Path for internal analog circuitry
18
AVDD
Analog Power Supply Pin
19
NC
No Connect
20
DVDD
Digital Power Supply Pin
21
DGND
Digital Ground Pin, Return Path for internal digital circuitry
22
DR
Data Ready Signal Output Pin
23
NC
No Connect
24
DGND
Digital Ground Pin, Return Path for internal digital circuitry
25
OSC1/CLKI
Oscillator Crystal Connection Pin or External Clock Input
26
OSC2
Oscillator Crystal Connection Pin
27
CS
Serial Interface Chip Select Pin
28
SCK
Serial Interface Clock Input Pin
29
SDO
Serial Interface Data Output Pin
30
SDI
Serial Interface Data Input Pin
31
RESET
Master Reset Logic Input Pin
32
DGND
Digital Ground Pin, Return Path for internal digital circuitry
33
DVDD
Digital Power Supply Pin
34
NC
No Connect
35
AVDD
Analog Power Supply Pin
36
AGND
Analog Ground Pin, Return Path for internal analog circuitry
37
CH0+
Non-Inverting Analog Input Pin for Channel 0
38
CH0-
Inverting Analog Input Pin for Channel 0
39
CH1-
Inverting Analog Input Pin for Channel 1
40
CH1+
Non-Inverting Analog Input Pin for Channel 1
41
EP
Exposed Thermal Pad. Must be connected to AGND or floating.



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