PIC18F6520-I Datasheet, PDF (16/380 Pages) Micrel Semiconductor – 64/80-Pin High-Performance, 256 Kbit to 1 Mbit Enhanced Flash Microcontrollers with A/D

PIC18F6520/8520/6620/8620/6720/8720
TABLE 1-2: PIC18FXX20 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin
PIC18F6X20 PIC18F8X20 ^Type
Buffer
Type
Description
PORTC is a bidirectional I/O port.
RC0/T1OSO/T13CKI
30
RC0
T1OSO
T13CKI
36
I/O
ST
O
—
I
ST
Digital I/O.
Timer1 oscillator output.
Timer1/Timer3 external clock input.
RC1/T1OSI/CCP2
29
RC1
T1OSI
CCP2⁽²⁾
35
I/O
ST
Digital I/O.
I
CMOS
Timer1 oscillator input.
I/O
ST
Capture2 input/Compare2 output/
PWM2 output.
RC2/CCP1
RC2
CCP1
33
43
I/O
ST
Digital I/O.
I/O
ST
Capture1 input/Compare1 output/
PWM1 output.
RC3/SCK/SCL
RC3
SCK
SCL
34
44
I/O
ST
Digital I/O.
I/O
ST
Synchronous serial clock input/output
for SPI mode.
I/O
ST
Synchronous serial clock input/output
for I²C mode.
RC4/SDI/SDA
RC4
SDI
SDA
35
45
I/O
ST
Digital I/O.
I
ST
I/O
ST
SPI data in.
I²C data I/O.
RC5/SDO
RC5
SDO
36
46
I/O
ST
Digital I/O.
O
—
SPI data out.
RC6/TX1/CK1
RC6
TX1
CK1
31
37
I/O
ST
Digital I/O.
O
—
USART 1 asynchronous transmit.
I/O
ST
USART 1 synchronous clock
(see RX1/DT1).
RC7/RX1/DT1
RC7
RX1
DT1
32
38
I/O
ST
Digital I/O.
I
ST
USART 1 asynchronous receive.
I/O
ST
USART 1 synchronous data
(see TX1/CK1).
Legend:
TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
I = Input
P = Power
CMOS = CMOS compatible input or output
Analog = Analog input
O
= Output
OD = Open-Drain (no P diode to VDD)
Note 1: Alternate assignment for CCP2 when CCP2MX is not selected (all operating modes except
Microcontroller).
2: Default assignment when CCP2MX is set.
3: External memory interface functions are only available on PIC18F8X20 devices.
4: CCP2 is multiplexed with this pin by default when configured in Microcontroller mode. Otherwise, it is
multiplexed with either RB3 or RC1.
5: PORTH and PORTJ are only available on PIC18F8X20 (80-pin) devices.
6: AVDD must be connected to a positive supply and AVSS must be connected to a ground reference for
proper operation of the part in user or ICSP modes. See parameter D001A for details.
DS39609B-page 14
 2004 Microchip Technology Inc.