Datasheet
2011 Microchip Technology Inc. Preliminary DS39977C-page 9
PIC18F66K80 FAMILY
Pin Diagrams (Continued)
64-Pin QFN
(1)
/TQFP
RA1/AN1/C1INC
RB3/CANRX/CTED2/INT3
RA2/VREF-/AN2/C2INC
RA5/AN4/HLVDIN/T1CKI/SS
1
2
3
4
7
5
6
43
42
24
23
20
22
38
37
36
35
34
33
27
8
9
10
11
17
18
19
RA0/CVREF/AN0/ULPWU
MCLR
/RE3
RC0/SOSCO/SCLKI
RC1/SOSCI
RC2/T1G/CCP2
RC3/REFO/SCL/SCK
PIC18F6XK80
PIC18LF6XK80
RA3/VREF+/AN3
VSS
RB1/AN8/CTDIN/INT1
RB0/AN10/FLT0/INT0
RC4/SDA/SDI
RC5/SDO
RC6/CCP3
RB6/PGC/KBI2
RB5/T0CKI/T3CKI/CCP5/KBI1
RB4/AN9/CTPLS/KBI0
21
25
26
39
40
41
57
58
61
59
54
64
63
62
60
56
55
RC7/CCP4
RD4/ECCP1/P1A/PSP4
RD5/P1B/PSP5
RD6/P1C/PSP6
RD7/P1D/PSP7
AV
DD
RB2/CANTX/CTED1/INT2
OSC1/CLKIN/RA7
OSC2/CLKOUT/RA6
RE0/AN5/RD
RE1/AN6/C1OUT/WR
RE2/AN7/C2OUT/CS
RD0/C1INA/PSP0
RD1/C1INB/PSP1
RD3/C2INB/CTMUI/PSP3
RD2/C2INA/PSP2
RF0/MDMIN
12
13
14
15
16
29
28
32
30
31
48
47
44
45
46
52
53
49
51
50
RG0/RX1/DT1
RG1/CANTX2
V
DD
RG2/T3CKI
RG3/TX1/CK1
RG4/T0CKI
RF1
RE5/CANTX
V
DD
VSS
RE4/CANRX
VDDCORE/VCAP
RF2/MDCIN1
RF3
A
VDD
VDD
AVSS
VSS
RF4/MDCIN2
RF5
RF6/MDOUT
RF7
V
SS
VDD
RE6/RX2/DT2
RE7/TX2/CK2
RB7/PGD/T3G/KBI3
Note 1: For the QFN package, it is recommended that the bottom pad be connected to VSS.