Datasheet

PIC18F45J10 FAMILY
DS39682E-page 16 © 2009 Microchip Technology Inc.
TABLE 1-3: PIC18F44J10/45J10 PINOUT I/O DESCRIPTIONS
Pin Name
Pin Number
Pin
Type
Buffer
Type
Description
PDIP QFN TQFP
MCLR
MCLR
11818
IST
Master Clear (input) or programming voltage (input).
Master Clear (Reset) input. This pin is an active-low
Reset to the device.
OSC1/CLKI
OSC1
CLKI
13 32 30
I
I
—
CMOS
Oscillator crystal or external clock input.
Oscillator crystal input or external clock source input.
External clock source input. Always associated with
pin function OSC1. See related OSC2/CLKO pins.
OSC2/CLKO
OSC2
CLKO
14 33 31
O
O
—
—
Oscillator crystal or clock output.
Oscillator crystal output. Connects to crystal
or resonator in Crystal Oscillator mode.
In RC mode, OSC2 pin outputs CLKO which
has 1/4 the frequency of OSC1 and denotes
the instruction cycle rate.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output
ST = Schmitt Trigger input with CMOS levels I = Input
O = Output 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.