Microchip Technology Humidity Sensor PICtail User Manual page 25

+5V
C
1
0.1 μF
RA3
TP5
V
SEN
R
2
10 kΩ
1
RC1
HS1101LF
Humidity
C
2
0.1 μF
MCP6291
1
FIGURE A-1: Board – Schematic.
© 2005 Microchip Technology Inc.
1
V
DD
2
RA5/T1CKI/OSC1/CLKIN
3
RA4/AN3/T1G/OSC2/CLKOUT
4
RA3/MCLR/V
PP
5
RC5/CCP1/P1A
6
RC4/C2OUT/P1B
7
RC3/AN7/P1C
8
RC6/AN8/SS
9
RC7/AN9/SDO
10
RB7/TX/CK
TP4
V
CM
R
6.65 MΩ
R
3
10kΩ
Csen
R
66.5 kΩ
2
R
66.5 kΩ
+5VA
+5VA
5
U
2
4
-
3
+
2
Schematic and Layouts
U1
PIC16F690/P
RA0/AN0/C1IN+/ICSPDAT/ULPWU
RA1/AN1/C12IN-/V /ICSPCLK
REF
RA2/AN2/T0CLKI/INT/C1OUT
RC0/AN4/C2IN+
RC1/AN5/C12IN-
RC2/AN6/P1D
RB4/AN10/SDI/SDA
RB5/AN11/RX/DT
RB6/SCK/SCL
+5VA
JP1
1
INT
0.1pF/
R
A2
OPEN
JP2
2
INT
1.0pF/
JP3
3
INT
R
10pF/
A3
OPEN
R
1
CM
20 kΩ
R C
2
CM CM
20 kΩ 0.1μF
NOTE: All Resistors are 1%
20
V
SS
19
RA0
18
RA1
17
16
15
RC1
14
RC2
13
12
11
TP 3
V
INT
R
4
10 kΩ
R
A1
0Ω
RC2
DS51594A-page 21