PIC18F26K80-I Datasheet, PDF (18/622 Pages) Microchip Technology – 28/40/44/64-Pin, Enhanced Flash Microcontrollers with ECAN™ and nanoWatt XLP Technology

PIC18F66K80 FAMILY
TABLE 1-4: PIC18F2XK80 I/O DESCRIPTIONS
Pin Name
Pin Number
SSOP/ ^{Pin Buffer}
QFN SPDIP ^{Type Type}
/SOIC
Description
MCLR/RE3
26
1
MCLR
I
ST Master Clear (input) or programming voltage (input). This
pin is an active-low Reset to the device.
RE3
I
ST General purpose, input only pin.
OSC1/CLKIN/RA7
6
9
OSC1
I
ST Oscillator crystal input.
CLKIN
I CMOS External clock source input. Always associated with pin
function, OSC1. (See related OSC1/CLKI, OSC2/CLKO
pins.)
RA7
I/O ST/ General purpose I/O pin.
CMOS
OSC2/CLKOUT/RA6
7
10
OSC2
O
— Oscillator crystal output.
Connects to crystal or resonator in Crystal Oscillator mode.
CLKOUT
O
— In certain oscillator modes, OSC2 pin outputs CLKO, which
has 1/4 the frequency of OSC1 and denotes the instruction
cycle rate.
RA6
Legend:
I/O ST/ General purpose I/O pin.
CMOS
CMOS = CMOS compatible input or output
I²C™ = I²C/SMBus input buffer
ST = Schmitt Trigger input with CMOS levels
Analog = Analog input
I
= Input
O
= Output
P
= Power
DS39977F-page 18
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