
PIC18F2450/4450
2008 Microchip Technology Inc.
DS39760D-page 3
Pin Diagrams (Continued)
44-Pin QFN
10
11
2
3
6
1
18
19
20 21 22
12 13
14 15
38
8
7
44
43
42 41
40 39
16 17
29
30
31
32
33
23
24
25
26
27
28
36
34
35
9
37
RA3
/AN3
/V
RE
F
+
RA
2
/AN2
/V
RE
F-
RA1
/AN1
RA0
/AN0
MC
LR
/V
PP
/R
E
3
R
B
7/K
B
I3/
P
G
D
R
B
6/K
B
I2/
P
G
C
RB
5/
K
B
I1
/P
GM
NC
RC6
/T
X/CK
RC5
/D+/VP
RC4
/D-
/VM
RD3
RD2
RD1
RD0
V
US
B
RC2
/CCP1
RC1/T
1O
S
I/UOE
RC0/T
1O
S
O
/T
1
C
K
I
OSC2/CLKO/RA6
OSC1/CLKI
VSS
AVDD
RA5/AN4/HLVDIN
RA4/T0CKI/RCV
RC7/RX/DT
RD4
RD5
RD6
VSS
VDD
RB0/AN12/INT0
RB1/AN10/INT1
RB2/AN8/INT2/VMO
RB3
/AN9
/VP
O
RD7
5
4
AVSS
VDD
AVDD
PIC18F4450
R
B
4
/AN1
1/
KBI
0
RE0/AN5
RE1/AN6
RE2/AN7
40-Pin PDIP
RB7/KBI3/PGD
RB6/KBI2/PGC
RB5/KBI1/PGM
RB4/AN11/KBI0
RB3/AN9/VPO
RB2/AN8/INT2/VMO
RB1/AN10/INT1
RB0/AN12/INT0
VDD
VSS
RD7
RD6
RD5
RD4
RC7/RX/DT
RC6/TX/CK
RC5/D+/VP
RC4/D-/VM
RD3
RD2
MCLR/VPP/RE3
RA0/AN0
RA1/AN1
RA2/AN2/VREF-
RA3/AN3/VREF+
RA4/T0CKI/RCV
RA5/AN4/HLVDIN
RE0/AN5
RE1/AN6
RE2/AN7
VDD
VSS
OSC1/CLKI
OSC2/CLKO/RA6
RC0/T1OSO/T1CKI
RC1/T1OSI/UOE
RC2/CCP1
VUSB
RD0
RD1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
PIC1
8F4
4
50