PIC18F2331_07 Datasheet, PDF (22/400 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
TABLE 1-3: PIC18F4331/4431 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin Buffer
PDIP TQFP QFN ^{Type Type}
Description
PORTC is a bidirectional I/O port.
RC0/T1OSO/T1CKI 15 32 34
RC0
I/O ST
T1OSO
O—
T1CKI
I ST
Digital I/O.
Timer1 oscillator output.
Timer1 external clock input.
RC1/T1OSI/CCP2/
FLTA
RC1
T1OSI
CCP2
FLTA
16 35 35
I/O ST
I CMOS
I/O ST
I ST
Digital I/O.
Timer1 oscillator input.
Capture 2 input, Compare 2 output, PWM2 output.
Fault interrupt input pin.
RC2/CCP1/FLTB
RC2
CCP1
FLTB
17 36 36
I/O ST
I/O ST
I ST
Digital I/O.
Capture 1 input/Compare 1 output/PWM1 output.
Fault interrupt input pin.
RC3/T0CKI/T5CKI/
INT0
RC3
T0CKI⁽¹⁾
T5CKI⁽¹⁾
INT0
18 37 37
I/O ST
I ST
I ST
I ST
Digital I/O.
Timer0 alternate clock input.
Timer5 alternate clock input.
External interrupt 0.
RC4/INT1/SDI/SDA 23 42 42
RC4
I/O ST
INT1
SDI⁽¹⁾
SDA⁽¹⁾
I ST
I ST
I/O ST
Digital I/O.
External interrupt 1.
SPI data in.
I²C™ data I/O.
RC5/INT2/SCK/SCL 24 43 43
RC5
I/O ST
INT2
SCK⁽¹⁾
SCL⁽¹⁾
I ST
I/O ST
I/O ST
Digital I/O.
External interrupt 2.
Synchronous serial clock input/output for SPI mode.
Synchronous serial clock input/output for I²C mode.
RC6/TX/CK/SS
RC6
TX
CK
SS
25 44 44
I/O ST
O—
I/O ST
I ST
Digital I/O.
EUSART asynchronous transmit.
EUSART synchronous clock (see related RX/DT).
SPI slave select input.
RC7/RX/DT/SDO
RC7
RX
DT
SDO
26 1
1
I/O ST
I ST
I/O ST
O—
Digital I/O.
EUSART asynchronous receive.
EUSART synchronous data (see related TX/CK).
SPI data out.
Legend:
Note 1:
2:
3:
TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
O = Output
OD = Open-Drain (no diode to VDD)
CMOS = CMOS compatible input or output
I
= Input
P
= Power
RC3 is the alternate pin for T0CKI/T5CKI; RC4 is the alternate pin for SDI/SDA; RC5 is the alternate pin
for SCK/SCL.
RD4 is the alternate pin for FLTA.
RD5 is the alternate pin for PWM4.
DS39616C-page 20
Preliminary
© 2007 Microchip Technology Inc.