ATSAML21G18A pinout

Every pin of the ATSAML21G18A in its 1 package, with all its functions. Select a pin to see what it does.

ATSAML21G18AQFN-48 / TQFP-48TOP VIEW

QFN-48 / TQFP-48 pin table

PinPadFunctions
1PA00 PA00EIC/EXTINT[0]OSC32KCTRL/XIN32RSTC/EXTWAKE[0]SERCOM1/PAD[0]TCC2/WO[0]
2PA01 PA01EIC/EXTINT[1]OSC32KCTRL/XOUT32RSTC/EXTWAKE[1]SERCOM1/PAD[1]TCC2/WO[1]
3PA02 PA02ADC/AIN[0]DAC/VOUT[0]EIC/EXTINT[2]OPAMP/OANEG[0]PTC/Y[0]RSTC/EXTWAKE[2]
4PA03 PA03ADC/AIN[1]DAC/VREFPEIC/EXTINT[3]PTC/Y[1]RSTC/EXTWAKE[3]
5GNDANA Ground
6VDDANA Supply or reference
7PB08 PB08ADC/AIN[2]CCL/IN[8]EIC/EXTINT[8]OPAMP/OANEG[2]PTC/Y[14]SERCOM4/PAD[0]TC0/WO[0]
8PB09 PB09ADC/AIN[3]CCL/OUT[2]EIC/EXTINT[9]OPAMP/OAPOS[1]PTC/Y[15]SERCOM4/PAD[1]TC0/WO[1]
9PA04 PA04AC/AIN[0]ADC/AIN[4]ADC/VREFPCCL/IN[0]EIC/EXTINT[4]OPAMP/OAOUT[2]PTC/Y[2]RSTC/EXTWAKE[4]SERCOM0/PAD[0]TCC0/WO[0]
10PA05 PA05AC/AIN[1]ADC/AIN[5]CCL/IN[1]DAC/VOUT[1]EIC/EXTINT[5]OPAMP/OAPOS[2]PTC/Y[3]RSTC/EXTWAKE[5]SERCOM0/PAD[1]TCC0/WO[1]
11PA06 PA06AC/AIN[2]ADC/AIN[6]CCL/IN[2]EIC/EXTINT[6]OPAMP/OAPOS[0]PTC/Y[4]RSTC/EXTWAKE[6]SERCOM0/PAD[2]TCC1/WO[0]
12PA07 PA07AC/AIN[3]ADC/AIN[7]CCL/OUT[0]EIC/EXTINT[7]OPAMP/OAOUT[0]PTC/Y[5]RSTC/EXTWAKE[7]SERCOM0/PAD[3]TCC1/WO[1]
13PA08 PA08ADC/AIN[16]CCL/IN[3]EIC/NMIPTC/X[0]PTC/Y[6]RSTC/EXTWAKE[8]SERCOM0/PAD[0]SERCOM2/PAD[0]TCC0/WO[0]TCC1/WO[2]
14PA09 PA09ADC/AIN[17]CCL/IN[4]EIC/EXTINT[9]PTC/X[1]PTC/Y[7]RSTC/EXTWAKE[9]SERCOM0/PAD[1]SERCOM2/PAD[1]TCC0/WO[1]TCC1/WO[3]
15PA10 PA10ADC/AIN[18]CCL/IN[5]EIC/EXTINT[10]GCLK/IO[4]PTC/X[2]PTC/Y[8]RSTC/EXTWAKE[10]SERCOM0/PAD[2]SERCOM2/PAD[2]TCC0/WO[2]TCC1/WO[0]
16PA11 PA11ADC/AIN[19]CCL/OUT[1]EIC/EXTINT[11]GCLK/IO[5]PTC/X[3]PTC/Y[9]RSTC/EXTWAKE[11]SERCOM0/PAD[3]SERCOM2/PAD[3]TCC0/WO[3]TCC1/WO[1]
17VDDIO Supply or reference
18GNDIO Ground
19PB10 PB10CCL/IN[5]EIC/EXTINT[10]GCLK/IO[4]SERCOM4/PAD[2]TC1/WO[0]TCC0/WO[4]
20PB11 PB11CCL/OUT[1]EIC/EXTINT[11]GCLK/IO[5]SERCOM4/PAD[3]TC1/WO[1]TCC0/WO[5]
21PA12 PA12AC/CMP[0]EIC/EXTINT[12]RSTC/EXTWAKE[12]SERCOM2/PAD[0]SERCOM4/PAD[0]TCC0/WO[6]TCC2/WO[0]
22PA13 PA13AC/CMP[1]EIC/EXTINT[13]RSTC/EXTWAKE[13]SERCOM2/PAD[1]SERCOM4/PAD[1]TCC0/WO[7]TCC2/WO[1]
23PA14 PA14EIC/EXTINT[14]GCLK/IO[0]OSCCTRL/XINRSTC/EXTWAKE[14]SERCOM2/PAD[2]SERCOM4/PAD[2]TC4/WO[0]TCC0/WO[4]
24PA15 PA15EIC/EXTINT[15]GCLK/IO[1]OSCCTRL/XOUTRSTC/EXTWAKE[15]SERCOM2/PAD[3]SERCOM4/PAD[3]TC4/WO[1]TCC0/WO[5]
25PA16 PA16CCL/IN[0]EIC/EXTINT[0]GCLK/IO[2]PTC/X[4]SERCOM1/PAD[0]SERCOM3/PAD[0]TCC0/WO[0]TCC0/WO[6]TCC2/WO[0]
26PA17 PA17CCL/IN[1]EIC/EXTINT[1]GCLK/IO[3]PTC/X[5]SERCOM1/PAD[1]SERCOM3/PAD[1]TCC0/WO[1]TCC0/WO[7]TCC2/WO[1]
27PA18 PA18AC/CMP[0]CCL/IN[2]EIC/EXTINT[2]PTC/X[6]SERCOM1/PAD[2]SERCOM3/PAD[2]TC4/WO[0]TCC0/WO[2]
28PA19 PA19AC/CMP[1]CCL/OUT[0]EIC/EXTINT[3]PTC/X[7]SERCOM1/PAD[3]SERCOM3/PAD[3]TC4/WO[1]TCC0/WO[3]
29PA20 PA20EIC/EXTINT[4]GCLK/IO[4]PTC/X[8]SERCOM3/PAD[2]SERCOM5/PAD[2]TCC0/WO[6]
30PA21 PA21EIC/EXTINT[5]GCLK/IO[5]PTC/X[9]SERCOM3/PAD[3]SERCOM5/PAD[3]TCC0/WO[7]
31PA22 PA22CCL/IN[6]EIC/EXTINT[6]GCLK/IO[6]PTC/X[10]SERCOM3/PAD[0]SERCOM5/PAD[0]TC0/WO[0]TCC0/WO[4]
32PA23 PA23CCL/IN[7]EIC/EXTINT[7]GCLK/IO[7]PTC/X[11]SERCOM3/PAD[1]SERCOM5/PAD[1]TC0/WO[1]TCC0/WO[5]USB/SOF_1KHZ
33PA24 PA24CCL/IN[8]EIC/EXTINT[12]SERCOM3/PAD[2]SERCOM5/PAD[2]TC1/WO[0]TCC1/WO[2]USB/DM
34PA25 PA25CCL/OUT[2]EIC/EXTINT[13]SERCOM3/PAD[3]SERCOM5/PAD[3]TC1/WO[1]TCC1/WO[3]USB/DP
35GNDIO Ground
36VDDIO Supply or reference
37PB22 PB22CCL/IN[0]EIC/EXTINT[6]GCLK/IO[0]SERCOM5/PAD[2]
38PB23 PB23CCL/OUT[0]EIC/EXTINT[7]GCLK/IO[1]SERCOM5/PAD[3]
39PA27 PA27EIC/EXTINT[15]GCLK/IO[0]SERCOM3/PAD[0]
40RESET_N PM/RESET_N
41VDDCORE Supply or reference
42GNDIO Ground
43VSW No function listed
44VDDIN Supply or reference
45PA30 PA30CCL/IN[3]EIC/EXTINT[10]GCLK/IO[0]SERCOM1/PAD[2]TCC1/WO[0]
46PA31 PA31CCL/OUT[1]EIC/EXTINT[11]SERCOM1/PAD[3]TCC1/WO[1]
47PB02 PB02ADC/AIN[10]CCL/OUT[0]EIC/EXTINT[2]SERCOM5/PAD[0]SUPC/OUT[1]
48PB03 PB03ADC/AIN[11]EIC/EXTINT[3]SERCOM5/PAD[1]SUPC/VBAT