PIC18F2331 Datasheet, PDF (4/396 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
Pin Diagrams
28-Pin SDIP, SOIC
MCLR/VPP/RE3
RA0/AN0
RA1/AN1
RA2/AN2/VREF-/CAP1/INDX
RA3/AN3/VREF+/CAP2/QEA
RA4/AN4/CAP3/QEB
AVDD
AVSS
OSC1/CLKI/RA7
OSC2/CLKO/RA6
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2/FLTA
RC2/CCP1/FLTB
RC3/T0CKI/T5CKI/INT0
•1
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
Note 1: Low-voltage programming must be enabled.
RB7/KBI3/PGD
RB6/KBI2/PGC
RB5/KBI1/PWM4/PGM⁽¹⁾
RB4/KBI0/PWM5
RB3/PWM3
RB2/PWM2
RB1/PWM1
RB0/PWM0
VDD
VSS
RC7/RX/DT/SDO
RC6/TX/CK/SS
RC5/INT2/SCK/SCL
RC4/INT1/SDI/SDA
40-Pin PDIP
MCLR/VPP/RE3
1
RA0/AN0
2
RA1/AN1
3
RA2/AN2/VREF-/CAP1/INDX
4
RA3/AN3/VREF+/CAP2/QEA
5
RA4/AN4/CAP3/QEB
6
RA5/AN5/LVDIN
7
RE0/AN6
8
RE1/AN7
9
RE2/AN8
10
AVDD
11
AVSS
12
OSC1/CLKI/RA7
13
OSC2/CLKO/RA6
14
RC0/T1OSO/T1CKI
15
RC1/T1OSI/CCP2/FLTA
16
RC2/CCP1/FLTB
17
RC3/T0CKI⁽¹⁾/T5CKI⁽¹⁾/INT0
18
RD0/T0CKI/T5CKI
19
RD1/SDO
20
40
RB7/KBI3/PGD
39
RB6/KBI2/PGC
38
RB5/KBI1/PWM4/PGM⁽²⁾
37
RB4/KBI0/PWM5
36
RB3/PWM3
35
RB2/PWM2
34
RB1/PWM1
33
RB0/PWM0
32
VDD
31
VSS
30
RD7/PWM7
29
RD6/PWM6
28
RD5/PWM4⁽⁴⁾
27
RD4/FLTA⁽³⁾
26
RC7/RX/DT/SDO⁽¹⁾
25
RC6/TX/CK/SS
24
RC5/INT2/SCK⁽¹⁾/SCL⁽¹⁾
23
RC4/INT1/SDI⁽¹⁾/SDA⁽¹⁾
22
RD3/SCK/SCL
21
RD2/SDI/SDA
Note 1: RC3 is the alternate pin for T0CKI/T5CKI; RC4 is the alternate pin for SDI/SDA; RC5 is the alternate pin
for SCK/SCL.
2: Low-voltage programming must be enabled.
3: RD4 is the alternate pin for FLTA.
4: RD5 is the alternate pin for PWM4.
DS39616B-page 2
Preliminary
 2003 Microchip Technology Inc.