PIC18F47J53 Datasheet, PDF (22/586 Pages) Microchip Technology – 28/44-Pin, High-Performance USB Microcontrollers with nanoWatt XLP Technology

PIC18F47J53 FAMILY
TABLE 1-4: PIC18F4XJ53 PINOUT I/O DESCRIPTIONS
Pin Name
Pin Number
Pin
44- 44- _Type
QFN TQFP
Buffer
Type
Description
MCLR
18⁽³⁾ 18
I
ST Master Clear (Reset) input; this is an active-low
Reset to the device.
OSC1/CLKI/RA7
OSC1
CLKI
RA7⁽¹⁾
32 30
Oscillator crystal or external clock input.
I
ST
Oscillator crystal input or external clock source
input. ST buffer when configured in RC mode;
otherwise CMOS. Main oscillator input
connection.
I CMOS External clock source input; always associated
with pin function OSC1 (see related OSC1/CLKI
pins).
I/O TTL/DIG Digital I/O.
OSC2/CLKO/RA6
OSC2
CLKO
RA6⁽¹⁾
33 31
Oscillator crystal or clock output.
O
—
Oscillator crystal output. Connects to crystal or
resonator in Crystal Oscillator mode.
O
—
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.
I/O TTL/DIG Digital I/O.
Legend:
Note 1:
2:
3:
TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
I = Input
P = Power
DIG = Digital output
CMOS
Analog
O
OD
I²C™
= CMOS compatible input or output
= Analog input
= Output
= Open-Drain (no P diode to VDD)
= Open-Drain, I²C specific
RA7 and RA6 will be disabled if OSC1 and OSC2 are used for the clock function.
Available only on 44-pin devices (PIC18F46J53, PIC18F47J53, PIC18LF46J53 and PIC18LF47J53).
5.5V tolerant.
DS39964B-page 22
Preliminary
 2010 Microchip Technology Inc.