PIC18F66K80 FAMILY
DS39977F-page 34
2010-2012 Microchip Technology Inc.
PORTA is a bidirectional I/O port.
RA0/CVREF/AN0/
ULPWU
29
RA0
I/O
ST/
CMOS
General purpose I/O pin.
CVREF
O
Analog Comparator reference voltage output.
AN0
I
Analog Analog Input 0.
ULPWU
I
Analog Ultra Low-Power Wake-up input.
RA1/AN1/C1INC
30
RA1
I/O
ST/
CMOS
Digital I/O.
AN1
I
Analog Analog Input 1.
C1INC
I
Analog Comparator 1 Input C.
RA2/VREF-/AN2/C2INC
31
RA2
I/O
ST/
CMOS
Digital I/O.
VREF-
I
Analog A/D reference voltage (low) input.
AN2
I
Analog Analog Input 2.
C2INC
I
Analog Comparator 2 Input C.
RA3/VREF+/AN3
32
RA3
I/O
ST/
CMOS
Digital I/O.
VREF+
I
Analog A/D reference voltage (high) input.
AN3
I
Analog Analog Input 3.
RA5/AN4/HLVDIN/
T1CKI/SS
34
RA5
I/O
ST/
CMOS
Digital I/O.
AN4
I
Analog Analog Input 4.
HLVDIN
I
Analog High/Low-Voltage Detect input.
T1CKI
I
ST
Timer1 clock input.
SS
I
ST
SPI slave select input.
TABLE 1-6:
PIC18F6XK80 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin
Num
Pin
Type
Buffer
Type
Description
Legend:
I2C = I2C/SMBus input buffer
CMOS = CMOS compatible input or output
ST
= Schmitt Trigger input with CMOS levels
Analog = Analog input
I
= Input
O
= Output
P= Power