Datasheet
dsPIC33EPXXXGM3XX/6XX/7XX
DS70000689D-page 16 2013-2014 Microchip Technology Inc.
TABLE 1-1: PINOUT I/O DESCRIPTIONS
Pin Name
Pin
Type
Buffer
Type
PPS Description
AN0-AN49 I Analog No Analog Input Channels 0-49.
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.
IC1-IC8 I ST Yes Input Capture Inputs 1 through 8.
OCFA
OCFB
OC1-OC8
I
I
O
ST
ST
—
Yes
No
Yes
Output Compare Fault A input (for compare channels).
Output Compare Fault B input (for compare channels).
Output Compare 1 through 8.
INT0
INT1
INT2
INT3
INT4
I
I
I
I
I
ST
ST
ST
ST
ST
No
Yes
Yes
No
No
External Interrupt 0.
External Interrupt 1.
External Interrupt 2.
External Interrupt 3.
External Interrupt 4.
RA0-RA4, RA7-RA12,
RA14-RA15
I/O ST Yes PORTA is a bidirectional I/O port.
RB0-RB15 I/O ST Yes PORTB is a bidirectional I/O port.
RC0-RC13, RC15 I/O ST Yes PORTC is a bidirectional I/O port.
RD1-RD6, RD8,
RD12-RD15
I/O ST Yes PORTD is a bidirectional I/O port.
RE0-RE1, RE8-RE9,
RE12-RE15
I/O ST Yes PORTE is a bidirectional I/O port.
RF0-RF1, RF4-RF7,
RF9-RF10,
RF12-RF13
I/O ST No PORTF is a bidirectional I/O port.
RG0-RG3,
RG6-RG15
I/O ST Yes PORTG is a bidirectional I/O port.
T1CK
T2CK
T3CK
T4CK
T5CK
T6CK
T7CK
T8CK
T9CK
I
I
I
I
I
I
I
I
I
ST
ST
ST
ST
ST
ST
ST
ST
ST
No
Yes
No
No
No
No
No
No
No
Timer1 external clock input.
Timer2 external clock input.
Timer3 external clock input.
Timer4 external clock input.
Timer5 external clock input.
Timer6 external clock input.
Timer7 external clock input.
Timer8 external clock input.
Timer9 external clock input.
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 TTL = TTL input buffer
Note 1: This pin is not available on all devices. For more information, see the “Pin Diagrams” section for pin
availability.
2: AV
DD must be connected at all times.