circuito electronico

1. 5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
50Hz
BATT1
16x2 Text LCD
R/W
RS
+1.2V Reference Voltage
16x2 text LCD interface
VREF=1.2294V @27C
R test 985Ohms
Copyright (C) 2011 by Wichit Sirichote, wichit.sirichote@gmail.com
<Doc> 1
4-CHANNEL Pt100 THERMOMETER
Custom
1 1Saturday, August 06, 2011
Title
Size Document Number Rev
Date: Sheet of
PGD D7
MUXC
D4
D7
RD1
LCD_E
IO
PGD
PGC
VinSigma-Delta
MOSI
MUXA
RS
VREF
VDD
CS*
D4
RD1
RS
VREF
MISO
MUXA
MUXC
MCLR
LCD_E
MUXB
RD2
RD2
SCLK
D3
RD0
D2
RD0
PGC D6
VinSigma-Delta
D6
D5
D5
D0
VBATT
RW
MCLR
VSS
SCK
DC+
RW
MUXB
D1
VREF
CH1
CH2
CH3
CH4
CH1
CH2
CH3
CH4
VBATT
+3.3V
+3.3V
+3.3V
+5V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+5V
+5V
+5V
PVN1
PIC18F46K20,45K20 - PDIP 40 pins
26
27
28
29
30
12
1133
34
35
36
38
39
40
1
2
3
4
5
6
7
8
9
10
32
31
13
14
15
16
17
19
18
20
21
22
23
24
25
37
RC7/RX/DT
RD4
RD5
RD6
RD7
VSS
AVDDRB0/INT0/AN12
RB1/INT1
RB2/INT2/AN10
RB3/AN9
RB5/PGM
RB6/PGC
RB7/PGD
MCLR/VPP/RE3
RA0/AN0
RA1/AN1
RA2/AN2/VREF-
RA3/AN3/VREF+
RA4/T0CKI
RA5/AN4
RE0/AN5
RE1/AN6
RE2/AN7
VDD
VSS
OSC1
OSC2
RC0/T1OSO/T13CKI
RC1/T1OSI
RC2
RD0
RC3/SCK
RD1
RD2
RD3
RC4/SDI
RC5/SDO
RC6/TXD
RB4/AN11
D1
1N4148
R1
10k
U4
LM117A/TO
3
1
4VIN
ADJ
VOUT/TAB
+ C9
220uF
U5 LM117A/TO
3
1
4
VIN
ADJ
VOUT/TAB
+ C10
22uF
C3 33pF
R6 100
U3
CD4051BCMX SO-8
13
14
15
12
1
5
2
4
6
11
10
9
3
16
8
7
X0
X1
X2
X3
X4
X5
X6
X7
INH
A
B
C
X
VDD
VSS
VEE
C12
100nF
+
-
U1A
LM358
3
2
1
84
R4
100k
JR1
CONN RECT 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
R3 100
C4
0.1uF
D3
1N4007
12
R10
Pt100
+ C8
10uF
+
C7 22uF
C13
100nF
+ C11
22uF
C1
100nF
U2
LTC2420 20-bit delta-sigma ADC
1
2
3
4
8
7
6
5
VDC
VREF
VIN
GND
F0
SCK
SDO
CS
R12
20k
R5
10K
1 3
2
R2
4.7k
R13
10k
+ C5
4.7uF
C6
100nF
C2
33pF
J3
CON6
1
2
3
4
5
6
TP1
TEST POINT
1
R7 1k 1%
S2
J1
PIC ISP
1
2
3
4
5
R8 1k 1%
R9 1k 1%
S3
J2
CON2
1
2
Y1
32768Hz
R11 1k 1%
S1
D2
LM385-1.2/SO
48