PIC18F87K22 Datasheet, PDF (15/548 Pages) Microchip Technology – 64/80-Pin, High-Performance, 1-Mbit Enhanced Flash Microcontrollers with 12-Bit A/D and nanoWatt XLP Technology

PIC18F87K22 FAMILY
TABLE 1-3: PIC18F6XK22 PINOUT I/O DESCRIPTIONS
Pin Name
Pin Number _{Pin Buffer}
QFN/TQFP ^{Type Type}
Description
MCLR/RG5
MCLR
RG5
7
I
ST
Master Clear (input) or programming voltage (input).
This pin is an active-low Reset to the device.
I
ST
General purpose, input only pin.
OSC1/CLKI/RA7
OSC1
CLKI
RA7
39
Oscillator crystal or external clock input.
I CMOS Oscillator crystal input.
I CMOS External clock source input. Always associated
with pin function, OSC1. (See related OSC1/CLKI,
OSC2/CLKO pins.)
I/O TTL
General purpose I/O pin.
OSC2/CLKO/RA6
OSC2
CLKO
RA6
40
Oscillator crystal or clock output.
O
—
Oscillator crystal output. Connects to crystal or
resonator in Crystal Oscillator mode.
O
—
In certain oscillator modes, OSC2 pin outputs CLKO,
which has 1/4 the frequency of OSC1 and denotes the
instruction cycle rate.
I/O TTL
General purpose I/O pin.
Legend:
TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
I = Input
P = Power
I²C = I²C™/SMBus
CMOS
Analog
O
OD
= CMOS compatible input or output
= Analog input
= Output
= Open-Drain (no P diode to VDD)
Note 1:
2:
3:
Default assignment for ECCP2 when the CCP2MX Configuration bit is set.
Alternate assignment for ECCP2 when the CCP2MX Configuration bit is cleared.
Not available on PIC18F65K22 and PIC18F85K22 devices.
 2010 Microchip Technology Inc.
Preliminary
DS39960B-page 15