Microchip Technology DM330023-2 Data Sheet
© 2007-2012 Microchip Technology Inc.
DS70283K-page 11
dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304
TABLE 1-1:
PINOUT I/O DESCRIPTIONS
Pin Name
Pin
Type
Buffer
Type
PPS
Description
AN0-AN8
I
Analog
No
Analog input channels.
CLKI
CLKO
CLKO
I
O
ST/CMOS
—
No
No
No
External clock source input. Always associated with OSC1 pin function.
Oscillator crystal output. Connects to crystal or resonator in Crystal
Oscillator mode. Optionally functions as CLKO in RC and EC modes.
Always associated with OSC2 pin function.
Oscillator crystal output. Connects to crystal or resonator in Crystal
Oscillator mode. Optionally functions as CLKO in RC and EC modes.
Always associated with OSC2 pin function.
OSC1
OSC2
I
I/O
ST/CMOS
—
No
No
Oscillator crystal input. ST buffer when configured in RC mode; CMOS
otherwise.
Oscillator crystal output. Connects to crystal or resonator in Crystal
Oscillator mode. Optionally functions as CLKO in RC and EC modes.
otherwise.
Oscillator crystal output. Connects to crystal or resonator in Crystal
Oscillator mode. Optionally functions as CLKO in RC and EC modes.
SOSCI
SOSCO
SOSCO
I
O
ST/CMOS
—
No
No
No
32.768 kHz low-power oscillator crystal input; CMOS otherwise.
32.768 kHz low-power oscillator crystal output.
32.768 kHz low-power oscillator crystal output.
CN0-CN30
I
ST
No
Change notification inputs.
Can be software programmed for internal weak pull-ups on all inputs.
Can be software programmed for internal weak pull-ups on all inputs.
IC1-IC2
IC7-IC8
IC7-IC8
I
I
I
ST
ST
ST
Yes
Yes
Yes
Capture inputs 1/2.
Capture inputs 7/8.
Capture inputs 7/8.
OCFA
OC1-OC2
OC1-OC2
I
O
ST
—
Yes
Yes
Yes
Compare Fault A input (for Compare Channels 1 and 2).
Compare outputs 1 through 2.
Compare outputs 1 through 2.
INT0
INT1
INT2
INT1
INT2
I
I
I
I
I
ST
ST
ST
ST
ST
No
Yes
Yes
Yes
External interrupt 0.
External interrupt 1.
External interrupt 2.
External interrupt 1.
External interrupt 2.
RA0-RA4
RA7-RA10
RA7-RA10
I/O
ST
No
No
No
PORTA is a bidirectional I/O port.
RB0-RB15
I/O
ST
No
PORTB is a bidirectional I/O port.
RC0-RC9
I/O
ST
No
PORTC is a bidirectional I/O port.
T1CK
T2CK
T3CK
T2CK
T3CK
I
I
I
I
I
ST
ST
ST
ST
ST
No
Yes
Yes
Yes
Timer1 external clock input.
Timer2 external clock input.
Timer3 external clock input.
Timer2 external clock input.
Timer3 external clock input.
U1CTS
U1RTS
U1RX
U1TX
U1RTS
U1RX
U1TX
I
O
I
O
ST
—
ST
—
Yes
Yes
Yes
Yes
Yes
Yes
Yes
UART1 clear to send.
UART1 ready to send.
UART1 receive.
UART1 transmit.
UART1 ready to send.
UART1 receive.
UART1 transmit.
SCK1
SDI1
SDO1
SS1
SDI1
SDO1
SS1
I/O
I
O
I/O
ST
ST
ST
—
ST
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Synchronous serial clock input/output for SPI1.
SPI1 data in.
SPI1 data out.
SPI1 slave synchronization or frame pulse I/O.
SPI1 data in.
SPI1 data out.
SPI1 slave synchronization or frame pulse I/O.
SCL1
SDA1
ASCL1
ASDA1
SDA1
ASCL1
ASDA1
I/O
I/O
I/O
I/O
I/O
I/O
I/O
ST
ST
ST
ST
ST
ST
ST
No
No
No
No
No
No
No
Synchronous serial clock input/output for I2C1.
Synchronous serial data input/output for I2C1.
Alternate synchronous serial clock input/output for I2C1.
Alternate synchronous serial data input/output for I2C1.
Synchronous serial data input/output for I2C1.
Alternate synchronous serial clock input/output for I2C1.
Alternate synchronous serial data input/output for I2C1.
TMS
TCK
TDI
TDO
TCK
TDI
TDO
I
I
I
I
I
O
ST
ST
ST
ST
ST
—
No
No
No
No
No
No
No
JTAG Test mode select pin.
JTAG test clock input pin.
JTAG test data input pin.
JTAG test data output pin.
JTAG test clock input pin.
JTAG test data input pin.
JTAG test data output pin.
Legend: CMOS = CMOS compatible input or output;
Analog = Analog input;
P = Power
ST = Schmitt Trigger input with CMOS levels;
O = Output;
I = Input
PPS = Peripheral Pin Select