Rainbow Electronics MAXQ3120 - Manual (Page 32)

MAXQ3120
High-Precision ADC
Mixed-Signal Microcontroller
32 ____________________________________________________________________
Typical Operating Circuit
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
25 26 27 28 29 30 31 32 33 34 35 36 37 38 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
49
48
47
46
45
44
43
42
41
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
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