
PIC18F2450/4450
DS39760D-page 2
2008 Microchip Technology Inc.
Pin Diagrams
28-Pin QFN
10
11
2
3
4
5
6
1
8
7
9
12
13
14
15
16
17
18
19
20
23
24
25
26
27
28
22
21
MCLR/VPP/RE3
RA0/AN0
RA1/AN1
RA2/AN2/VREF-
RA3/AN3/VREF+
RA4/T0CKI/RCV
RA5/AN4/HLVDIN
VSS
OSC1/CLKI
OSC2/CLKO/RA6
RC0/T1OSO/T1CKI
RC1/T1OSI/UOE
RC2/CCP1
VUSB
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
RC7/RX/DT
RC6/TX/CK
RC5/D+/VP
RC4/D-/VM
28-Pin SPDIP, SOIC
PI
C
18F2
4
50
10 11
2
3
6
1
18
19
20
21
22
12 13 14
15
8
7
16
17
23
24
25
26
27
28
9
PIC18F2450
RC0
/T
1
O
SO/T
1C
KI
5
4
RB7
/KBI
3/
PG
D
RB6
/KBI
2/
PG
C
RB5
/KBI
1/
PG
M
RB4
/AN1
1/
KBI
0
RB3/AN9/VPO
RB2/AN8/INT2/VMO
RB1/AN10/INT1
RB0/AN12/INT0
VDD
VSS
RC7/RX/DT
RC6
/T
X/C
K
RC5
/D+/
VP
RC4
/D-
/VM
MC
LR
/V
PP
/RE
3
RA0
/AN0
RA1
/AN1
RA2/AN2/VREF-
RA3/AN3/VREF+
RA4/T0CKI/RCV
RA5/AN4/HLVDIN
VSS
OSC1/CLKI
OSC2/CLKO/RA6
R
C
1/T
1O
S
I/U
OE
RC2
/CCP1
V
US
B