PIC18F2450 Datasheet, PDF (17/320 Pages) Microchip Technology – 28/40/44-Pin, High-Performance, 12 MIPS, Enhanced Flash, USB Microcontrollers with nanoWatt Technology

PIC18F2450/4450
TABLE 1-2: PIC18F2450 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin Buffer
PDIP,
SOIC
QFN
Type
Type
Description
PORTC is a bidirectional I/O port.
RC0/T1OSO/T1CKI
RC0
T1OSO
T1CKI
11 8
I/O ST
O—
I
ST
Digital I/O.
Timer1 oscillator output.
Timer1external clock input.
RC1/T1OSI/UOE
RC1
T1OSI
UOE
12 9
I/O ST
Digital I/O.
I CMOS Timer1 oscillator input.
——
External USB transceiver OE output.
RC2/CCP1
RC2
CCP1
13 10
I/O ST
I/O ST
Digital I/O.
Capture 1 input/Compare 1 output/PWM 1 output.
RC4/D-/VM
RC4
D-
VM
15 12
I TTL
I/O —
I TTL
Digital input.
USB differential minus line (input/output).
External USB transceiver VM input.
RC5/D+/VP
RC5
D+
VP
16 13
I TTL
I/O —
O TTL
Digital input.
USB differential plus line (input/output).
External USB transceiver VP input.
RC6/TX/CK
RC6
TX
CK
17 14
I/O ST
O—
I/O ST
Digital I/O.
EUSART asynchronous transmit.
EUSART synchronous clock (see RX/DT).
RC7/RX/DT
RC7
RX
DT
18 15
I/O ST
I
ST
I/O ST
Digital I/O.
EUSART asynchronous receive.
EUSART synchronous data (see TX/CK).
RE3
— — — — See MCLR/VPP/RE3 pin.
VUSB
14 11 O — Internal USB 3.3V voltage regulator.
VSS
8, 19 5, 16 P
— Ground reference for logic and I/O pins.
VDD
20 17 P
— Positive supply for logic and I/O pins.
Legend: TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
O = Output
CMOS = CMOS compatible input or output
I
= Input
P
= Power
© 2006 Microchip Technology Inc.
Advance Information
DS39760A-page 15