PIC18F2682 Datasheet, PDF (19/484 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology

PIC18F2682/2685/4682/4685
TABLE 1-3: PIC18F4682/4685 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin Buffer
PDIP QFN TQFP ^{Type Type}
Description
PORTA is a bidirectional I/O port.
RA0/AN0/CVREF
RA0
AN0
CVREF
2 19 19
I/O TTL Digital I/O.
I Analog Analog input 0.
O Analog Analog comparator reference output.
RA1/AN1
RA1
AN1
3 20 20
I/O TTL Digital I/O.
I Analog Analog input 1.
RA2/AN2/VREF-
RA2
AN2
VREF-
4 21 21
I/O TTL Digital I/O.
I Analog Analog input 2.
I Analog A/D reference voltage (low) input.
RA3/AN3/VREF+
RA3
AN3
VREF+
5 22 22
I/O TTL Digital I/O.
I Analog Analog input 3.
I Analog A/D reference voltage (high) input.
RA4/T0CKI
RA4
T0CKI
6 23 23
I/O TTL Digital I/O.
I
ST
Timer0 external clock input.
RA5/AN4/SS/HLVDIN 7 24 24
RA5
I/O TTL Digital I/O.
AN4
I Analog Analog input 4.
SS
I TTL SPI slave select input.
HLVDIN
I Analog High/Low-Voltage Detect input.
RA6
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
CMOS = CMOS compatible input or output
I
= Input
P
= Power
© 2007 Microchip Technology Inc.
Preliminary
DS39761B-page 17