Datasheet

PIC18F47J13 FAMILY
DS39974A-page 16 Preliminary  2010 Microchip Technology Inc.
TABLE 1-3: PIC18F2XJ13 PINOUT I/O DESCRIPTIONS
Pin Name
Pin Number
Pin
Type
Buffer
Type
Description
28-SPDIP/
SSOP/
SOIC
28-QFN
MCLR
1
(2)
26
(2)
I ST Master Clear (Reset) input. This pin is an
active-low Reset to the device.
OSC1/CLKI/RA7
OSC1
CLKI
RA7
(1)
96
I
I
I/O
ST
CMOS
TTL/DIG
Oscillator crystal or external clock input.
Oscillator crystal input or external clock source
input. ST buffer when configured in RC mode;
CMOS otherwise. Main oscillator input
connection.
External clock source input; always associated
with pin function, OSC1 (see related
OSC1/CLKI pins).
Digital I/O.
OSC2/CLKO/RA6
OSC2
CLKO
RA6
(1)
10 7
O
O
I/O
—
DIG
TTL/DIG
Oscillator crystal or clock output.
Oscillator crystal output. Connects to crystal or
resonator in Crystal Oscillator mode.
Main oscillator feedback output connection.
In RC mode, OSC2 pin outputs CLKO, which
has 1/4 the frequency of OSC1 and denotes
the instruction cycle rate.
Digital I/O.
Legend: TTL = TTL compatible input CMOS = CMOS compatible input or output
ST = Schmitt Trigger input with CMOS levels Analog = Analog input
I = Input O = Output
P = Power OD = Open-Drain (no P diode to V
DD)
DIG = Digital output I
2
C™ = Open-Drain, I
2
C specific
Note 1: RA7 and RA6 will be disabled if OSC1 and OSC2 are used for the clock function.
2: 5.5V tolerant.