PIC18F2420/2520/4420/4520
Pin Diagrams (Cont.’d)
44-pin TQFP
RC6/TX/CK
RC5/SDO
RC4/SDI/SDA
RD3/PSP3
RD2/PSP2
RD1/PSP1
RD0/PSP0
RC3/SCK/SCL
RC2/CCP1/P1A
RC1/T1OSI/CCP2
(1)
NC
44
43
42
41
40
39
38
37
36
35
34
44-pin QFN
44
43
42
41
40
39
38
37
36
35
34
RC6/TX/CK
RC5/SDO
RC4/SDI/SDA
RD3/PSP3
RD2/PSP2
RD1/PSP1
RD0/PSP0
RC3/SCK/SCL
RC2/CCP1/P1A
RC1/T1OSI/CCP2
(1)
RC0/T1OSO/T13CKI
NC
NC
RB4/KBI0/AN11
RB5/KBI1/PGM
RB6/KBI2/PGC
RB7/KBI3/PGD
MCLR/V
PP
/RE3
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-/CV
REF
RA3/AN3/V
REF
+
12
13
14
15
16
17
18
19
20
21
22
RC7/RX/DT
RD4/PSP4
RD5/PSP5/P1B
RD6/PSP6/P1C
RD7/PSP7/P1D
V
SS
V
DD
RB0/INT0/FLT0/AN12
RB1/INT1/AN10
RB2/INT2/AN8
RB3/AN9/CCP2
(1)
1
2
3
4
5
6
7
8
9
10
11
PIC18F4420
PIC18F4520
33
32
31
30
29
28
27
26
25
24
23
NC
RC0/T1OSO/T13CKI
OSC2/CLKO/RA6
OSC1/CLKI/RA7
V
SS
V
DD
RE2/CS/AN7
RE1/WR/AN6
RE0/RD/AN5
RA5/AN4/SS/HLVDIN/C2OUT
RA4/T0CKI/C1OUT
Note 1:
RB3 is the alternate pin for CCP2 multiplexing.
©
2008 Microchip Technology Inc.
RB3/AN9/CCP2
(1)
NC
RB4/KBI0/AN11
RB5/KBI1/PGM
RB6/KBI2/PGC
RB7/KBI3/PGD
MCLR/V
PP
/RE3
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-/CV
REF
RA3/AN3/V
REF
+
12
13
14
15
16
17
18
19
20
21
22
RC7/RX/DT
RD4/PSP4
RD5/PSP5/P1B
RD6/PSP6/P1C
RD7/PSP7/P1D
V
SS
V
DD
V
DD
RB0/INT0/FLT0/AN12
RB1/INT1/AN10
RB2/INT2/AN8
1
2
3
4
5
6
7
8
9
10
11
PIC18F4420
PIC18F4520
33
32
31
30
29
28
27
26
25
24
23
OSC2/CLKO/RA6
OSC1/CLKI/RA7
V
SS
V
SS
V
DD
V
DD
RE2/CS/AN7
RE1/WR/AN6
RE0/RD/AN5
RA5/AN4/SS/HLVDIN/C2OUT
RA4/T0CKI/C1OUT
DS39631E-page 3
MICROCHIP [ MICROCHIP TECHNOLOGY ]
