Typical operating circuit – Rainbow Electronics MAXQ3120 User Manual
Page 32
MAXQ3120
High-Precision ADC
Mixed-Signal Microcontroller
32
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Typical Operating Circuit
80
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67
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65
25
26
27
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30
31
32
33
34
35
36
37
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39
40
P1.4/SEG15
P1.3/SEG16
P1.2/SEG17
P1.1/SEG18
P1.0/SEG19
DGND
DV
DD
N.C.
N.C.
P0.7/T2B
P0.6/T2A
64
P0.0/SQW
RESET
32KOUT
32KIN
DV
DD
DGND
P3.7/RXD1
P3.6/TXD1
P3.5
P3.4
P3.3/TCK
V
BAT
AGND
V
REF
N.C.
N.C.
AN1+
AN1-
AN0+
AN0-
AV
DD
DGND
P3.2/TMS
P3.1/TDI
P1.5/SEG14
LCD DISPLAY
P1.6/SEG13
P1.7/SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
V
LCD
V
LCD1
V
LCD2
V
ADJ
SEG3
SEG2
SEG1
DGND
HFXIN
HFXOUT
8MHz
DV
DD
SEG0
COM3
63
62
61
60
59
58
57
56
55
54
53
52
51
50
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9
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24
P0.5/INT2/T1
P0.4/INT1/T0
P0.3/INT0/T0G
P0.2/TXD0
P0.1/RXD0
COM2
COM1
COM0
P2.0/SEG20
P2.1/SEG21
P2.2/SEG22
P2.3/SEG23
P2.4/SEG24
P2.5/SEG25
P2.6/SEG26
N.C.
N.C.
DGND
DV
DD
P2.7/SEG27
P3.0/TDO
MAXQ3120
INFRARED
Tx/Rx
32.768kHz
RS-485
Tx/Rx
VOLTAGE-
DIVIDER
AC LINE
OUT
SERIAL
EEPROM
CURRENT
SHUNT
AC
NEUTRAL
OUT
AC LINE
IN
AC
NEUTRAL
IN