
PIC18F2450/4450
DS39760D-page 4
2008 Microchip Technology Inc.
Pin Diagrams (Continued)
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
+
RA1
/AN1
MC
LR
/V
PP
/RE
3
RC6
/T
X/CK
RC0/T1OSO/T1CKI
OSC2/CLKO/RA6
OSC1/CLKI
VSS
VDD
RA5/AN4/HLVDIN
RA4/T0CKI/RCV
VSS
VDD
44-Pin TQFP
5
4
PIC18F4450
RC7/RX/DT
RD4
RD5
RD6
RD7
RB0/AN12/INT0
RB1/AN10/INT1
RB2/AN8/INT2/VMO
RB3/AN9/VPO
RC1
/T
1
O
S
I/UO
E
RC2
/CCP1
V
US
B
RD0
RD1
RD2
RD3
RC4
/D-
/VM
RC5
/D+/VP
RB
5/
K
B
I1
/P
GM
RB
6
/KBI
2/
PG
C
RB
7
/KBI
3/
PG
D
RA0
/AN0
RA2
/AN2
/V
RE
F-
Note 1: Special ICPORT features are available in select circumstances. For more information, see
RB4
/AN1
1/
KBI
0
RE0/AN5
RE1/AN6
RE2/AN7
NC/ICCK
(1
) /ICP
G
C
(1
)
NC/
ICDT
(1
) /I
C
P
G
D
(1
)
NC/ICRST(1)/ICVPP(1)
NC/I
C
P
O
R
T
S
(1
)