18F8680 datasheet(17/496 Pages) MICROCHIP

17 / 496 page

 2004 Microchip Technology Inc.

DS30491C-page 15

PIC18F6585/8585/6680/8680

PORTC is a bidirectional I/O port.

RC0/T1OSO/T13CKI

RC0

T1OSO

T13CKI

I/O

—

Digital I/O.

Timer1 oscillator output.

Timer1/Timer3 external clock input.

RC1/T1OSI/CCP2

RC1

T1OSI

CCP2(1, 4)

I/O

CMOS

Digital I/O.

Timer1 oscillator input.

CCP2 Capture input/Compare output/

PWM 2 output.

RC2/CCP1/P1A

RC2

CCP1

P1A

I/O

Digital I/O.

CCP1 Capture input/Compare output.

CCP1 PWM output A.

RC3/SCK/SCL

RC3

SCK

SCL

I/O

Digital I/O.

Synchronous serial clock input/output

for SPI mode.

Synchronous serial clock input/output

for I2C mode.

RC4/SDI/SDA

RC4

SDI

SDA

I/O

Digital I/O.

SPI data in.

I2C data I/O.

RC5/SDO

RC5

SDO

I/O

—

Digital I/O.

SPI data out.

RC6/TX/CK

RC6

I/O

—

Digital I/O.

USART asynchronous transmit.

USART synchronous clock

(see RX/DT).

RC7/RX/DT

RC7

I/O

Digital I/O.

USART 1 asynchronous receive.

USART 1 synchronous data

(see TX/CK).

TABLE 1-2:

PIC18F6585/8585/6680/8680 PINOUT I/O DESCRIPTIONS (CONTINUED)

Pin Name

Pin Number

Type

Buffer

Type

Description

PIC18F6X8X PIC18F8X8X

TQFP PLCC

TQFP

Legend: TTL

= TTL compatible input

CMOS

= CMOS compatible input or output

= Schmitt Trigger input with CMOS levels

Analog = Analog input

= Input

= Output

= Power

= Open-Drain (no P diode to VDD)

Note 1:

Alternate assignment for CCP2 in all operating modes except Microcontroller – applies to PIC18F8X8X only.

Default assignment when CCP2MX is set.

External memory interface functions are only available on PIC18F8X8X devices.

CCP2 is multiplexed with this pin by default when configured in Microcontroller mode; otherwise, it is

multiplexed with either RB3 or RC1.

PORTH and PORTJ are only available on PIC18F8X8X (80-pin) devices.

PSP is available in Microcontroller mode only.

On PIC18F8X8X devices, these pins can be multiplexed with RH7/RH6 by changing the ECCPMX

configuration bit.

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