PIC18F2480_09 Datasheet, PDF (15/490 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology

PIC18F2480/2580/4480/4580
TABLE 1-2: PIC18F2480/2580 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin Buffer
SPDIP,
SOIC
QFN
Type
Type
Description
RA0/AN0
RA0
AN0
RA1/AN1
RA1
AN1
RA2/AN2/VREF-
RA2
AN2
VREF-
RA3/AN3/VREF+
RA3
AN3
VREF+
RA4/T0CKI
RA4
T0CKI
RA5/AN4/SS/
HLVDIN
RA5
AN4
SS
HLVDIN
RA6
PORTA is a bidirectional I/O port.
2
27
I/O TTL
Digital I/O.
I Analog Analog Input 0.
3
28
I/O TTL
Digital I/O.
I Analog Analog Input 1.
4
1
I/O TTL
Digital I/O.
I Analog Analog Input 2.
I Analog A/D reference voltage (low) input.
5
2
I/O TTL
Digital I/O.
I Analog Analog Input 3.
I Analog A/D reference voltage (high) input.
6
3
I/O TTL
Digital I/O.
I
ST
Timer0 external clock input.
7
4
I/O TTL
I Analog
I
TTL
I Analog
Digital I/O.
Analog Input 4.
SPI slave select input.
High/Low-Voltage Detect input.
See the OSC2/CLKO/RA6 pin.
RA7
See the OSC1/CLKI/RA7 pin.
Legend:
TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
O = Output
I²C = I²C™/SMBus input buffer
CMOS = CMOS compatible input or output
I
= Input
P
= Power
© 2009 Microchip Technology Inc.
DS39637D-page 15