Datasheet

© 2011-2012 Microchip Technology Inc. Preliminary DS39997C-page 17
PIC24FJ16MC101/102 AND PIC24FJ32MC101/102/104
TABLE 1-1: PINOUT I/O DESCRIPTIONS
Pin Name
Pin
Type
Buffer
Type
PPS Description
AN0-AN10
(5)
AN11, AN12,
AN15
(4)
I Analog No Analog input channels.
CLKI
CLKO
I
O
ST/CMOS
—
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.
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.
SOSCI
SOSCO
I
O
ST/CMOS
—
No
No
32.768 kHz low-power oscillator crystal input; CMOS otherwise.
32.768 kHz low-power oscillator crystal output.
CN0-CN30
(5)
IST
ST
ST
ST
ST
ST
ST
No
No
No
No
No
No
No
Change notification inputs. Can be software programmed for internal weak
pull-ups on all inputs.
IC1-IC3 I ST Yes Capture inputs 1/2/3.
OCFA
OC1-OC2
I
O
ST
—
Yes
Yes
Compare Fault A input (for Compare Channels 1 and 2).
Compare outputs 1 through 2.
INT0
INT1
INT2
I
I
I
ST
ST
ST
No
Yes
Yes
External interrupt 0.
External interrupt 1.
External interrupt 2.
RA0-RA4
RA7-RA10
(4)
I/O ST No PORTA is a bidirectional I/O port.
RB0-RB15 I/O ST No PORTB is a bidirectional I/O port.
RC0-RC9
(4)
I/O ST No PORTC is a bidirectional I/O port.
T1CK
T2CK
T3CK
T4Ck
T4CK
I
I
I
I
I
ST
ST
ST
ST
ST
No
Yes
Yes
Yes
Yes
Timer1 external clock input.
Timer2 external clock input.
Timer3 external clock input.
Timer4 external clock input.
Timer5 external clock input.
U1CTS
U1RTS
U1RX
U1TX
I
O
I
O
ST
—
ST
—
Yes
Yes
Yes
Yes
UART1 clear to send.
UART1 ready to send.
UART1 receive.
UART1 transmit.
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
Note 1: An external pull-down resistor is required for the FLTA1
pin on PIC24FJ16MC101 (20-pin) devices.
2: The FLTB1 pin is available in PIC24FJ(16/32)MC102/104 devices only.
3: The PWM Fault pins are enabled during any reset event. Refer to Section 15.2 “PWM Faults” for more
information on the PWM faults.
4: This pin is available in PIC24FJ(16/32)MC104 devices only.
5: Not all pins are available on all devices. Refer to the specific device in the “Pin Diagrams” section for
availability.