9
Copyright © Matrix Multimedia Ltd.
PICmicro microcontroller pin out details
Broadly speaking, the ranges of PICmicro devices are
designed to be upwards compatible: the pin functions
on an 18-pin device are available on a 28-pin device and
a 40-pin device. This can be seen from the following
excerpt from the Microchip product selector card. The
following diagram shows the pin out of the various
PICmicro devices.
RA1/AN1
RA2/AN2/Vrefout
1
18
RA1/AN0
RA3/AN3/CMP1/Vrefin
2
17
OSC1/CLKIN/RA7
RA4/T0CKI/CMP2
3
16
OSC2/CLKOUT/RA6
Vpp/RA5/THV/MCLR
4
15
Vdd
Vss
5
14
RB7/T1OSI
RBO/INT
6
13
RB6/T1OSO/T1CKI
RB1/RX/DT
7
12
RB5
RB2/TX/CK
8
11
RB4/PGM
RB3/CCP1
9
10
18-pin PICmicro
Vss
Vdd
1
8
GP0/AN0
GP5/OSC1/CLKIN
2
7
GP1/AN1/Vref
GP4/OSC2/AN3/CLKOUT
3
6
GP2/T0CKI/AN2/INT
Vpp/GP3/MCLR
4
5
8-pin PICmicro
Note that GP0 maps to RB7
GP1 maps to RB6
GP2/AN2 maps to RA0/AN0
Vss
Vdd
1
14
RA0/CIN+/ICSPDAT
RA5/T1CKI/OSC1/CLKIN
2
13
RA1/CIN-/ICSPCLK
RA4/TIG/OSC2/CKLOUT
3
12
RA2/COUT/T0CKI/INT
RA3/MCLR/Vpp
4
11
Rc0
Rc5
5
10
Rc1
Rc4
6
9
Rc2
Rc3
7
8
14-pin PICmicro
Vss
Vdd
1
20
RA0/D+/PGD
RA5/OSC1/CLKIN
2
19
RA1/D-/PGC
RA4/AN3/OSC2/CLKOUT
3
18
VUSB
RA3/MCLR/Vpp
4
17
RC0/AN4/INTO/VREF+
RC5/CCP1/P1A
5
16
RC1/AN5/INT1/VREF-
RC4/P1B
6
15
RC2/AN6/INT2
RC3/AN7/P1C/PGM
7
14
RB4/AN10/SDI/SDA
RC6/AN8/T1OSCO
8
13
RB5/AN11/RX/DT
RC7/AN9/SDO/T1OSCO
9
12
20-pin PICmicro
RB6/SCK/SCL
RB7/TX/CK
10
11
RB7/PGO/KB13
MCLR
1
40
RB6/PGC/KB12
RA0/AN0
2
39
RB5/KBI1
RA1/AN1
3
38
RB4/KBI0
RA2/AN2/Vrl/Vref-
4
37
RB3/PGM/CCP2/CANRX
RA3/AN3/Vrh/Vref+
5
36
RB2/INT2/CANTX
RA4/T0CKI
6
35
RB1/INT1
RA5/AN4/SS/Lvdin
7
34
RB0/INT0
RE0/AN5/RD
8
33
Vdd
RE1/AN6/WR
9
32
40-pin PICmicro
Vss
RE3/AN7/CS
10
31
RD7/PSP7/PD
Avdd
11
30
RD6/PSP6/PC
Avss
12
29
RD5/PSP5/PB
OSC1/CLKI
13
28
RD4/PSP4/ECC/PA
OSC2/CLKO/RA6
14
27
RC7/RX/DT
RC0/T1OSO/T1CKI
15
26
RC6/TX/CK
RC1/T1OSVCCP2
16
25
RC5/SKO/D+
RC2/CCP1
17
24
RC4/SDI/SDA/D-
RC3/SCK/SCL
18
23
RD3/PSP3/C2IN
RD0/PSP0/C1IN+
19
22
RD2/PSP2/C2IN+
RD1/PSP1/C1IN-
20
21
RB7/PGO
Vpp/MCLR
1
28
RB6/PGC
RA0/AN0
2
27
RB5
RA1/AN1
3
26
RB4
RA2/AN2/Vrl/Vref-
4
25
RB3/PGM/CCP2
RA3/AN3/Vrh/Vref+
5
24
RB2/INT2
RA4/T0CKI
6
23
RB1/INT1
RA5/AN4/SS/Avdd/Lvdin
7
22
RB0/INT
Vss
8
21
Vdd
OSC1/CLKI
9
20
28-pin PICmicro
Vss
OSC2/CLKO/T1CKI
10
19
RC7/RX/DT
RC0/T1OSO/CCP2I
11
18
RC6/TX/CK
RC1/T1OS/CCP2I
12
17
RC5/SDO/D+
RC2/CCP1
13
16
RC4/SKI/SDA/D-
RC3/SKC/SCL
14
15