PIC18F2331/2431/4331/4431
Pin Diagrams (Continued)
44-Pin QFN
(2)
44
43
42
41
40
39
38
37
36
35
34
RC6/TX/CK/SS
RC5/INT2/SCK
(1)
/SCL
(1)
RC4/INT1/SDI
(1)
/SDA
(1)
RD3/SCK/SCL
RD2/SDI/SDA
RD1/SDO
RD0/T0CKI/T5CKI
RC3/T0CKI
(1)
/T5CKI
(1)
/INT0
RC2/CCP1/FLTB
RC1/T1OSI/CCP2/FLTA
RC0/T1OSO/T1CKI
Note 1:
2:
3:
4:
RC3 is the alternate pin for T0CKI/T5CKI; RC4 is the alternate pin for SDI/SDA; RC5 is the alternate pin
for SCK/SCL.
For the QFN package, it is recommended that the bottom pad be connected to V
SS
.
RD4 is the alternate pin for FLTA.
RD5 is the alternate pin for PWM4.
2010 Microchip Technology Inc.
RB3/PWM3
NC
RB4/KBI0/PWM5
RB5/KBI1/PWM4/PGM
(2)
RB6/KBI2/PGC
RB7/KBI3/PGD
MCLR/V
PP
/RE3
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-/CAP1/INDX
RA3/AN3/V
REF
+/CAP2/QEA
12
13
14
15
16
17
18
19
20
21
22
RC7/RX/DT/SDO
RD4/FLTA
(3)
RD5/PWM4
(4)
RD6/PWM6
RD7/PWM7
V
SS
V
DD
AV
DD
RB0/PWM0
RB1/PWM1
RB2/PWM2
1
2
3
4
5
6
7
8
9
10
11
PIC18F4331
PIC18F4431
33
32
31
30
29
28
27
26
25
24
23
OSC2/CLKO/RA6
OSC1/CLKI/RA7
V
SS
AV
SS
AV
DD
V
DD
RE2/AN8
RE1/AN7
RE0/AN6
RA5/AN5/LVDIN
RA4/AN4/CAP3/QEB
DS39616D-page 7
MICROCHIP [ MICROCHIP TECHNOLOGY ]
