2012 Microchip Technology Inc. Advance Information DS30025A-page 5
PIC18(L)F2X/45K50
TABLE 1: PIC18(L)F2X/45K50 PIN SUMMARY
I/O
28-PIn PDIP/SOIC/SSOP
28-Pin QFN
40-Pin PDIP
40-Pin UQFN
44-Pin TQFP
Analog
Comparator
CTMU
SR Latch
Reference
USB
(E)CCP
EUSART
MSSP
Timers
Interrupts
Pull-up
Basic
ICD
RA0 2 27 2 17 19 AN0 C12IN0-
RA1 3 28 3 18 20 AN1 C12IN1- CTCMP
RA2 4 1 4 19 21 AN2 C2IN+ VREF-
DACOUT
RA3 5 2 5 20 22 AN3 C1IN+ VREF+
RA4 6 3 6 21 23 C1OUT SRQ T0CKI
RA5 7 4 7 22 24 AN4 C2OUT
SRNQ
LVDIN
SS
RA6 10 7 14 29 31 OSC2
CLKO
RA7 9 6 13 28 30 OSC1
CLKI
RB0 21 18 33 8 8 AN12 SRI FLT0 SDI
SDA
INT0 Y
RB1 22 19 34 9 9 AN10 C12IN3- P1C
(5)
SCK
SCL
INT1 Y
RB2 23 20 35 10 10 AN8 CTED1 P1B
(5)
INT2 Y
RB3 24 21 36 11 11 AN9 C12IN2- CTED2 CCP2
(1)
SDO Y
RB4 25 22 37 12 14 AN11 P1D
(5)
IOCB4 Y
RB5 26 23 38 13 15 AN13 T1G
T3CKI
(2)
IOCB5 Y
RB6 27 24 39 14 16 IOCB6 Y PGC
RB7 28 25 40 15 17 IOCB7 Y PGD
Note 1: Alternate CCP2 pin location based on Configuration bit.
2: Alternate T3CKI pin location based on Configuration bits.
3: Pins are enabled when ICPRT = 1, otherwise, they are disabled.
4: Location on 40/44-Pin parts (PIC18(L)F45K50). Function not on this pin on 28-Pin parts (PIC18(L)F2XK50).
5: Location on 28-Pin parts (PIC18(L)F2XK50). Function not on this pin on 40/44-Pin parts (PIC18(L)F45K50).
6: Alternate SDO pin location based on Configuration bits.
7: RE3, RC4 and RC5 can be used for digital input only (no output functionality).
