Datasheet

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Pin
(1)
I/O Pin Supply A B
(2)(3)
C D E F G H
SAMD21E SAMD21G SAMD21J EIC REF ADC AC PTC DAC SERCOM
(2)(3)
SERCOM-ALT TC
(4)
/TCC
TCC COM AC/
GCLK
26 PB13 VDDIO EXTINT[13] X[13] SERCOM4/
PAD[1]
TC4/WO[1] TCC0/
WO[7]
GCLK_IO[7]
27 PB14 VDDIO EXTINT[14] X[14] SERCOM4/
PAD[2]
TC5/WO[0] GCLK_IO[0]
28 PB15 VDDIO EXTINT[15] X[15] SERCOM4/
PAD[3]
TC5/WO[1] GCLK_IO[1]
21 29 PA12 VDDIO EXTINT[12] SERCOM2/
PAD[0]
SERCOM4/
PAD[0]
TCC2/WO[0] TCC0/
WO[6]
AC/CMP[0]
22 30 PA13 VDDIO EXTINT[13] SERCOM2/
PAD[1]
SERCOM4/
PAD[1]
TCC2/WO[1] TCC0/
WO[7]
AC/CMP[1]
15 23 31 PA14 VDDIO EXTINT[14] SERCOM2/
PAD[2]
SERCOM4/
PAD[2]
TC3/WO[0] TCC0/
WO[4]
GCLK_IO[0]
16 24 32 PA15 VDDIO EXTINT[15] SERCOM2/
PAD[3]
SERCOM4/
PAD[3]
TC3/WO[1] TCC0/
WO[5]
GCLK_IO[1]
17 25 35 PA16 VDDIO EXTINT[0] X[4] SERCOM1/
PAD[0]
SERCOM3/
PAD[0]
TCC2/WO[0] TCC0/WO[6] GCLK_IO[2]
18 26 36 PA17 VDDIO EXTINT[1] X[5] SERCOM1/
PAD[1]
SERCOM3/
PAD[1]
TCC2/WO[1] TCC0/WO[7] GCLK_IO[3]
19 27 37 PA18 VDDIO EXTINT[2] X[6] SERCOM1/
PAD[2]
SERCOM3/
PAD[2]
TC3/WO[0] TCC0/
WO[2]
AC/CMP[0]
20 28 38 PA19 VDDIO EXTINT[3] X[7] SERCOM1/
PAD[3]
SERCOM3/
PAD[3]
TC3/WO[1] TCC0/
WO[3]
I2S/SD[0] AC/CMP[1]
39 PB16 VDDIO EXTINT[0] SERCOM5/
PAD[0]
TC6/WO[0] TCC0/
WO[4]
I2S/SD[1] GCLK_IO[2]
40 PB17 VDDIO EXTINT[1] SERCOM5/
PAD[1]
TC6/WO[1] TCC0/
WO[5]
I2S/
MCK[0]
GCLK_IO[3]
29 41 PA20 VDDIO EXTINT[4] X[8] SERCOM5/
PAD[2]
SERCOM3/
PAD[2]
TC7/WO[0] TCC0/
WO[6]
I2S/
SCK[0]
GCLK_IO[4]
30 42 PA21 VDDIO EXTINT[5] X[9] SERCOM5/
PAD[3]
SERCOM3/
PAD[3]
TC7/WO[1] TCC0/
WO[7]
I2S/FS[0] GCLK_IO[5]
21 31 43 PA22 VDDIO EXTINT[6] X[10] SERCOM3/
PAD[0]
SERCOM5/
PAD[0]
TC4/WO[0] TCC0/
WO[4]
GCLK_IO[6]
22 32 44 PA23 VDDIO EXTINT[7] X[11] SERCOM3/
PAD[1]
SERCOM5/
PAD[1]
TC4/WO[1] TCC0/
WO[5]
USB/SOF
1kHz
GCLK_IO[7]
23 33 45 PA24
(6)
VDDIO EXTINT[12] SERCOM3/
PAD[2]
SERCOM5/
PAD[2]
TC5/WO[0] TCC1/
WO[2]
USB/DM
24 34 46 PA25
(6)
VDDIO EXTINT[13] SERCOM3/
PAD[3]
SERCOM5/
PAD[3]
TC5/WO[1] TCC1/
WO[3]
USB/DP
37 49 PB22 VDDIO EXTINT[6] SERCOM5/
PAD[2]
TC7/WO[0] TCC3/
WO[0]
GCLK_IO[0]
38 50 PB23 VDDIO EXTINT[7] SERCOM5/
PAD[3]
TC7/WO[1] TCC3/
WO[1]
GCLK_IO[1]
25 39 51 PA27 VDDIO EXTINT[15] TCC3/
WO[6]
GCLK_IO[0]
27 41 53 PA28 VDDIO EXTINT[8] TCC3/
WO[7]
GCLK_IO[0]
31 45 57 PA30 VDDIO EXTINT[10] SERCOM1/
PAD[2]
TCC1/WO[0] TCC3/
WO[4]
SWCLK GCLK_IO[0]
32 46 58 PA31 VDDIO EXTINT[11] SERCOM1/
PAD[3]
TCC1/WO[1] TCC3/
WO[5]
SWDIO
(5)
59 PB30 VDDIO EXTINT[14] SERCOM5/
PAD[0]
TCC0/WO[0] TCC1/
WO[2]
60 PB31 VDDIO EXTINT[15] SERCOM5/
PAD[1]
TCC0/WO[1] TCC1/
WO[3]
61 PB00 VDDANA EXTINT[0] AIN[8] Y[6] SERCOM5/
PAD[2]
TC7/WO[0]
62 PB01 VDDANA EXTINT[1] AIN[9] Y[7] SERCOM5/
PAD[3]
TC7/WO[1]
47 63 PB02 VDDANA EXTINT[2] AIN[10] Y[8] SERCOM5/
PAD[0]
TC6/WO[0] TCC3/
WO[2]
SAM D21 Family
I/O Multiplexing and Considerations
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 29