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PIC18F87K90 Datasheet, PDF (26/566 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt XLP Technology
PIC18F87K90 FAMILY
TABLE 1-4: PIC18F8XK90 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number Pin Buffer
TQFP Type Type
Description
PORTC is a bidirectional I/O port.
RC0/SOSCO/SCKLI
RC0
SOSCO
SCKLI
36
I/O ST
Digital I/O.
O
—
SOSC oscillator output.
I
ST
Digital SOSC input.
RC1/SOSCI/ECCP2/
SEG32/P2A
RC1
SOSCI
ECCP2(1)
SEG32
P2A
35
I/O ST
I CMOS
I/O ST
O Analog
O
—
Digital I/O.
SOSC oscillator input.
Capture 2 input/Compare 2 output/PWM2 output.
SEG32 output for LCD.
Enhanced PWM 2 Output A.
RC2/ECCP1/P1A/SEG13
43
RC2
ECCP1
P1A
SEG13
I/O ST
I/O ST
O
—
O Analog
Digital I/O.
Capture 1 input/Compare 1 output/PWM1 output.
Enhanced PWM 1 Output A.
SEG13 output for LCD.
RC3/SCK1/SCL1/SEG17
44
RC3
SCK1
SCL1
SEG17
I/O ST
I/O ST
I/O ST
O Analog
Digital I/O.
Synchronous serial clock input/output for SPI mode.
Synchronous serial clock input/output for I2C™ mode.
SEG17 output for LCD.
RC4/SDI1/SDA1/SEG16
45
RC4
I/O ST
Digital I/O.
SDI1
SDA1
I
ST
I/O ST
SPI data in.
I2C data I/O.
SEG16
O Analog SEG16 output for LCD.
RC5/SDO1/SEG12
RC5
SDO1
SEG12
46
I/O ST
Digital I/O.
O
—
SPI data out.
O Analog SEG12 output for LCD.
RC6/TX1/CK1/SEG27
RC6
TX1
CK1
SEG27
37
I/O ST
Digital I/O.
O
—
EUSART asynchronous transmit.
I/O ST
EUSART synchronous clock (see related RX1/DT1).
O Analog SEG27 output for LCD.
RC7/RX1/DT1/SEG28
RC7
RX1
DT1
SEG28
38
I/O ST
Digital I/O.
I
ST
EUSART asynchronous receive.
I/O ST
EUSART synchronous data (see related TX1/CK1).
O Analog SEG28 output for LCD.
Legend:
TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
I = Input
P = Power
I2C™ = I2C/SMBus
CMOS
Analog
O
OD
= CMOS compatible input or output
= Analog input
= Output
= Open-Drain (no P diode to VDD)
Note 1:
2:
3:
4:
Default assignment for ECCP2 when the CCP2MX Configuration bit is set.
Alternate assignment for ECCP2 when the CCP2MX Configuration bit is cleared.
Not available on PIC18F65K90 and PIC18F85K90 devices.
The CCP6, CCP7, CCP8 and CCP9 pin placement depends on the ECCPMX Configuration bit setting.
DS39957B-page 26
Preliminary
 2010 Microchip Technology Inc.