USB
DEBUGGER
SAMD21G17D
SW0
LED0
PS LED
NC
NC
ID
ID
CDC
RX
CDCRX
SEMCOM1
PAD0
TX
PA22
CDC
TX
CDCTX
SERCOM1
PAD1
RX
PB22
DBG1
DBG1
PA30
DBG2
DBG2
PB11
PA08
PA08
SERCOM3
PAD0
TX
TCC2
WO0
X4
PA09
PA09
SERCOM3
PAD1
RX
TCC2
WO1
X5
PA12
PA12
SERCOM2
PAD0
SDA
TC4
WO0
PA13
PA13
SERCOM2
PAD1
SCL
TCC2
WO0
PA16
PA16
SERCOM0
PAD0
MOSI
ADC
AIN[16]
TCC0
WO0
X0
PA19
PA19
SERCOM0
PAD3
MISO
ADC
AIN[19]
TCC1
WO1
X3
PA17
PA17
SERCOM0
PAD1
SCK
ADC
AIN[17]
TCC0
WO1
X1
PA18
PA18
SERCOM0
PAD2
SS
ADC
AIN[18]
TCC1
WO0
X2
GND
GND
PA20
PA20
SERCOM5
PAD0
TX
TC4
WO0
X10
PA21
PA21
SERCOM5
PAD1
RX
TC4
WO1
X11
SOF_1kHz
PB02
PB02
SERCOM3
PAD2
TC5
WO0
USB
D+
PB03
PB03
SERCOM3
PAD3
TC5
WO1
USB
D-
PA10
PA10
TC6
WO0
ADC
AIN[10]
SERCOM5
PAD0
Y8
PA11
PA1
1
TC6
WO1
ADC
AIN[11]
SERCOM5
PAD1
Y9
PA00
PA00
SERCOM4
PAD2
TC3
WO0
PA01
PA01
SERCOM4
PAD3
TC3
WO1
GND
GND
VBUS
VBUS
VOFF
VOFF
DBG3
DBG3
RESET
DBG0
DBG0
SWDIO
GND
GND
VTG
VTG
PA07
PA07
ADC
AIN[7]
TCC3
WO5
SERCOM0
PAD3
Y5
PA06
PA06
ADC
AIN[6]
TCC3
WO4
SERCOM0
PAD2
Y4
PA05
PA05
ADC
AIN[5]
TC0
WO1
SERCOM0
PAD1
TCC3
WO3
Y3
PA04
PA04
ADC
AIN[4]
TC0
WO0
SERCOM0
PAD0
TCC3
WO2
Y2
PB09
PB09
ADC
AIN[3]
SERCOM4
PAD1
TC4
WO0
TCC3
WO7
Y15
PB08
PB08
ADC
AIN[2]
SERCOM4
PAD0
TC4
WO0
TCC3
WO6
Y14
PA03
PA03
ADC
AIN[1]
TCC3
WO1
Y1
PA02
PA02
ADC
AIN[0]
DAC0
TCC3
WO0
Y0
GND
GND
PA28
PA28
PA27
PA27
TCC3
WO6
PB23
PB23
SERCOM5
PAD3
TC7
WO1
PA23
PA23
SERCOM5
PAD2
TC7
WO0
PA25
PA25
TC7
WO1
SERCOM3
PAD3
X9
PA24
PA24
TC7
WO0
SERCOM3
PAD2
X8
PA15
PA15
SERCOM1
PAD3
TC3
WO1
X7
PA14
PA14
SERCOM1
PAD2
TC3
WO0
X6
GND
GND
DEBUGGER
SAMD21G17D
Analog
Debug
I2C
SPI
UART
Peripheral
Port
PWM
Power
Ground
Touch
USB
Shared
pin
SAMD21G17D
Curiosity Nano
SAM D21
Hardware
©
2020 Microchip Technology Inc.
User Guide
DS70005409C-page 12
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