PIC18F2450 MICROCHIP [Microchip Technology], PIC18F2450 Datasheet - Page 18

• Manufacturer Part Number: PIC18F2450
• Description: 28/40/44-Pin, High-Performance, 12 MIPS, Enhanced Flash, USB Microcontrollers with nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F2450/4450
TABLE 1-3:
DS39760A-page 16
MCLR/Vpp/RE3
OSC1/CLKI
OSC2/CLKO/RA6
Legend: TTL = TTL compatible input
Note 1:
MCLR
V
RE3
OSC1
CLKI
OSC2
CLKO
RA6
PP
Pin Name
ST
O
These pins are No Connect unless the ICPRT Configuration bit is set. For NC/ICPORTS, the pin is No
Connect unless ICPRT is set and the DEBUG Configuration bit is cleared.
= Schmitt Trigger input with CMOS levels
= Output
PIC18F4450 PINOUT I/O DESCRIPTIONS
PDIP
13
14
1
Pin Number
QFN TQFP
18
32
33
18
30
31
Advance Information
Type
Pin
I/O
O
O
P
I
I
I
I
Analog
Analog
Buffer
Type
TTL
ST
ST
—
—
CMOS = CMOS compatible input or output
I
P
Master Clear (input) or programming voltage (input).
Oscillator crystal or external clock input.
Oscillator crystal or clock output.
Master Clear (Reset) input. This pin is an
active-low Reset to the device.
Programming voltage input.
Digital input.
Oscillator crystal input or external clock source input.
External clock source input. Always associated with
pin function OSC1. (See OSC2/CLKO pin.)
Oscillator crystal output. Connects to crystal or
resonator in Crystal Oscillator mode.
In select modes, OSC2 pin outputs CLKO which has
1/4 the frequency of OSC1 and denotes the instruction
cycle rate.
General purpose I/O pin.
= Input
= Power
Description
© 2006 Microchip Technology Inc.