PIC18F25K20T-ISS Datasheet, PDF (17/456 Pages) Microchip Technology – 28/40/44-Pin Flash Microcontrollers with nanoWatt XLP Technology

PIC18F2XK20/4XK20
TABLE 1-2: PIC18F2XK20 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin Buffer
PDIP,
SOIC
QFN
Type
Type
Description
PORTA is a bidirectional I/O port.
RA0/AN0/C12IN0-
RA0
AN0
C12IN0-
2 27
I/O TTL Digital I/O
I Analog Analog input 0, ADC channel 0
I Analog Comparators C1 and C2 inverting input
RA1/AN1/C12IN1-
RA1
AN1
C12IN1-
3 28
I/O TTL Digital I/O
I Analog ADC input 1, ADC channel 1
I Analog Comparators C1 and C2 inverting input
RA2/AN2/VREF-/CVREF/
4
C2IN+
RA2
AN2
VREF-
CVREF
C2IN+
1
I/O TTL
I Analog
I Analog
O Analog
I Analog
Digital I/O
Analog input 2, ADC channel 2
A/D reference voltage (low) input
Comparator reference voltage output
Comparator C2 non-inverting input
RA3/AN3/VREF+/C1IN+
5
2
RA3
I/O TTL Digital I/O
AN3
I Analog Analog input 3, ADC channel 3
VREF+
I Analog A/D reference voltage (high) input
C1IN+
I Analog Comparator C1 non-inverting input
RA4/T0CKI/C1OUT
RA4
T0CKI
C1OUT
6
3
I/O ST
Digital I/O
I ST
Timer0 external clock input
O CMOS Comparator C1 output
RA5/AN4/SS/HLVDIN/
C2OUT
RA5
AN4
SS
HLVDIN
C2OUT
7
4
I/O TTL
I Analog
I TTL
I Analog
O CMOS
Digital I/O
Analog input 4, ADC channel 4
SPI slave select input
High/Low-Voltage Detect input
Comparator C2 output
RA6
See the OSC2/CLKOUT/RA6 pin
RA7
Legend: TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
O = Output
See the OSC1/CLKIN/RA7 pin
CMOS = CMOS compatible input or output
I
= Input
P
= Power
Note 1: Default assignment for CCP2 when Configuration bit CCP2MX is set.
2: Alternate assignment for CCP2 when Configuration bit CCP2MX is cleared.
 2010 Microchip Technology Inc.
DS41303G-page 17