component
ATSAMD21G17D-AUT
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "atsamd21g17d-aut",
"title": "ATSAMD21G17D-AUT",
"brief": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"single chip microcomputer-microcontroller",
"atsamd21g17d-aut",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATSAMD21G17D-AUT",
"manufacturer": "Microchip Tech",
"package": "TQFP-48(7x7)",
"pin_count": 48,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/695f6e22d978946544b23f2c02d8cdba.pdf",
"parts": {
"symbol": "atsamd21g17d-aut.kicad_sym",
"footprint": "atsamd21g17d-aut.kicad_mod",
"model_3d": "atsamd21g17d-aut-hero.glb",
"model_3d_plain": "atsamd21g17d-aut-etched.glb",
"model_3d_step": "atsamd21g17d-aut-etched.step",
"model_3d_step_plain": "atsamd21g17d-aut.step",
"lbr": "atsamd21g17d-aut.lbr"
},
"distributor_links": {
"lcsc": "C2053430",
"digikey": "ATSAMD21G17D-AUTTR-ND",
"mouser": "556-ATSAMD21G17D-AUT"
},
"distributor_check": {
"checked_at": "2026-10-30T23:16:48Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATSAMD21G17D-AUTTR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "556-ATSAMD21G17D-AUT",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PA00",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with alternate functions EXTINT[0], SERCOM1/PAD[0] and TCC2/WO[0], and XIN32 (32 kHz crystal input) when XOSC32K is used."
},
{
"number": "2",
"name": "PA01",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with alternate functions EXTINT[1], SERCOM1/PAD[1] and TCC2/WO[1], and XOUT32 (32 kHz crystal output) when XOSC32K is used."
},
{
"number": "3",
"name": "PA02",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with analog functions AIN[0] and Y[0] and DAC output VOUT, which require peripheral function B to disable digital control of the pin, plus EXTINT[2] and TCC3/WO[0]."
},
{
"number": "4",
"name": "PA03",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with analog functions AIN[1] and Y[1], ADC/DAC external reference VREFA, plus EXTINT[3] and TCC3/WO[1]; analog functions require peripheral function B."
},
{
"number": "5",
"name": "GNDANA",
"type": "power_in",
"description": "Ground for the analog power domain (VDDANA)."
},
{
"number": "6",
"name": "VDDANA",
"type": "power_in",
"description": "Analog supply voltage, 1.62 V to 3.63 V, to be decoupled with 100 nF and 10 µF capacitors close to the device."
},
{
"number": "7",
"name": "PB08",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with alternate functions EXTINT[8], AIN[2], Y[14], SERCOM4/PAD[0], TC4/WO[0] and TCC3/WO[6]."
},
{
"number": "8",
"name": "PB09",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with alternate functions EXTINT[9], AIN[3], Y[15], SERCOM4/PAD[1], TC4/WO[1] and TCC3/WO[7]."
},
{
"number": "9",
"name": "PA04",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with analog functions AIN[4], AIN[0] and Y[2], ADC external reference VREFB, plus EXTINT[4], SERCOM0/PAD[0], TCC0/WO[0] and TCC3/WO[2]."
},
{
"number": "10",
"name": "PA05",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with analog functions AIN[5], AIN[1] and Y[3], plus EXTINT[5], SERCOM0/PAD[1], TCC0/WO[1] and TCC3/WO[3]."
},
{
"number": "11",
"name": "PA06",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with analog functions AIN[6], AIN[2] and Y[4], plus EXTINT[6], SERCOM0/PAD[2], TCC1/WO[0] and TCC3/WO[4]."
},
{
"number": "12",
"name": "PA07",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with analog functions AIN[7], AIN[3] and Y[5], plus EXTINT[7], SERCOM0/PAD[3], TCC1/WO[1] and TCC3/WO[5]."
},
{
"number": "13",
"name": "PA08",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions NMI, AIN[16], X[0], SERCOM0/PAD[0], SERCOM2/PAD[0], TCC0/WO[0] and TCC1/WO[2]; supports SERCOM I2C Hs mode."
},
{
"number": "14",
"name": "PA09",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[9], AIN[17], X[1], SERCOM0/PAD[1], SERCOM2/PAD[1], TCC0/WO[1] and TCC1/WO[3]; supports SERCOM I2C Hs mode."
},
{
"number": "15",
"name": "PA10",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[10], AIN[18], X[2], SERCOM0/PAD[2], SERCOM2/PAD[2], TCC1/WO[0], TCC0/WO[2] and GCLK_IO[4]."
},
{
"number": "16",
"name": "PA11",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[11], AIN[19], X[3], SERCOM0/PAD[3], SERCOM2/PAD[3], TCC1/WO[1], TCC0/WO[3] and GCLK_IO[5]."
},
{
"number": "17",
"name": "VDDIO",
"type": "power_in",
"description": "Digital supply voltage, 1.62 V to 3.63 V, decoupled with 100 nF and 10 µF capacitors close to the device."
},
{
"number": "18",
"name": "GND",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "19",
"name": "PB10",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[10], SERCOM4/PAD[2], TC5/WO[0], TCC0/WO[4], I2S/MCK[1] and GCLK_IO[4]."
},
{
"number": "20",
"name": "PB11",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[11], SERCOM4/PAD[3], TC5/WO[1], TCC0/WO[5], I2S/SCK[1] and GCLK_IO[5]."
},
{
"number": "21",
"name": "PA12",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[12], SERCOM2/PAD[0], SERCOM4/PAD[0], TCC2/WO[0], TCC0/WO[6] and AC/CMP[0]; supports SERCOM I2C Hs mode."
},
{
"number": "22",
"name": "PA13",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[13], SERCOM2/PAD[1], SERCOM4/PAD[1], TCC2/WO[1], TCC0/WO[7] and AC/CMP[1]; supports SERCOM I2C Hs mode."
},
{
"number": "23",
"name": "PA14",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[14], SERCOM2/PAD[2], SERCOM4/PAD[2], TC3/WO[0], TCC0/WO[4] and GCLK_IO[0], and XIN (crystal/external clock input) when XOSC is used."
},
{
"number": "24",
"name": "PA15",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[15], SERCOM2/PAD[3], SERCOM4/PAD[3], TC3/WO[1], TCC0/WO[5] and GCLK_IO[1], and XOUT (crystal output) when XOSC is used."
},
{
"number": "25",
"name": "PA16",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[0], X[4], SERCOM1/PAD[0], SERCOM3/PAD[0], TCC2/WO[0], TCC0/WO[6] and GCLK_IO[2]; supports SERCOM I2C Hs mode."
},
{
"number": "26",
"name": "PA17",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[1], X[5], SERCOM1/PAD[1], SERCOM3/PAD[1], TCC2/WO[1], TCC0/WO[7] and GCLK_IO[3]; supports SERCOM I2C Hs mode."
},
{
"number": "27",
"name": "PA18",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[2], X[6], SERCOM1/PAD[2], SERCOM3/PAD[2], TC3/WO[0], TCC0/WO[2] and AC/CMP[0]."
},
{
"number": "28",
"name": "PA19",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[3], X[7], SERCOM1/PAD[3], SERCOM3/PAD[3], TC3/WO[1], TCC0/WO[3] and AC/CMP[1]."
},
{
"number": "29",
"name": "PA20",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[4], X[8], SERCOM5/PAD[2], SERCOM3/PAD[2], TCC0/WO[6], I2S/SCK[0] and GCLK_IO[4]."
},
{
"number": "30",
"name": "PA21",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[5], X[9], SERCOM5/PAD[3], SERCOM3/PAD[3], TCC0/WO[7], I2S/FS[0] and GCLK_IO[5]."
},
{
"number": "31",
"name": "PA22",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[6], X[10], SERCOM3/PAD[0], SERCOM5/PAD[0], TC4/WO[0], TCC0/WO[4] and GCLK_IO[6]; supports SERCOM I2C Hs mode."
},
{
"number": "32",
"name": "PA23",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[7], X[11], SERCOM3/PAD[1], SERCOM5/PAD[1], TC4/WO[1], TCC0/WO[5], USB SOF 1kHz and GCLK_IO[7]; supports SERCOM I2C Hs mode."
},
{
"number": "33",
"name": "PA24",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[12], SERCOM3/PAD[2], SERCOM5/PAD[2], TC5/WO[0], TCC1/WO[2] and USB DM; if the pin is unconnected, a pull-up via input GPIO mode is recommended to avoid up to 1 mA of extra consumption."
},
{
"number": "34",
"name": "PA25",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[13], SERCOM3/PAD[3], SERCOM5/PAD[3], TC5/WO[1], TCC1/WO[3] and USB DP; if the pin is unconnected, a pull-up via input GPIO mode is recommended to avoid up to 1 mA of extra consumption."
},
{
"number": "35",
"name": "GND",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "36",
"name": "VDDIO",
"type": "power_in",
"description": "Digital supply voltage, 1.62 V to 3.63 V, decoupled with 100 nF and 10 µF capacitors close to the device."
},
{
"number": "37",
"name": "PB22",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[6], SERCOM5/PAD[2], TCC3/WO[0] and GCLK_IO[0]."
},
{
"number": "38",
"name": "PB23",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[7], SERCOM5/PAD[3], TCC3/WO[1] and GCLK_IO[1]."
},
{
"number": "39",
"name": "PA27",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[15], TCC3/WO[6] and GCLK_IO[0]."
},
{
"number": "40",
"name": "RESET",
"type": "input",
"description": "External active-low reset input with an internal pull-up; the low-level threshold is below 0.36 × VDDIO at 2.7 V to 3.6 V and below 0.33 × VDDIO at 1.6 V to 2.0 V."
},
{
"number": "41",
"name": "PA28",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[8], TCC3/WO[7] and GCLK_IO[0]."
},
{
"number": "42",
"name": "GND",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "43",
"name": "VDDCORE",
"type": "power_out",
"description": "Core supply output of the internal voltage regulator, 1.6 V to 1.8 V, with a 1 µF decoupling capacitor close to the pin."
},
{
"number": "44",
"name": "VDDIN",
"type": "power_in",
"description": "Input supply to the internal voltage regulator that generates VDDCORE; the device supports a single supply of 1.62 V to 3.63 V."
},
{
"number": "45",
"name": "PA30",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[10], SERCOM1/PAD[2], TCC1/WO[0], TCC3/WO[4] and GCLK_IO[0], and SWCLK (Serial Wire Debug clock)."
},
{
"number": "46",
"name": "PA31",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain with alternate functions EXTINT[11], SERCOM1/PAD[3], TCC1/WO[1] and TCC3/WO[5], and SWDIO (Serial Wire Debug data, activated only when a debugger is present)."
},
{
"number": "47",
"name": "PB02",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with analog functions AIN[10] and Y[8], plus EXTINT[2], SERCOM5/PAD[0] and TCC3/WO[2]."
},
{
"number": "48",
"name": "PB03",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA domain with analog functions AIN[11] and Y[9], plus EXTINT[3], SERCOM5/PAD[1] and TCC3/WO[3]."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Package/variant: MPN ATSAMD21G17D-AUT decodes to G = 48 pins, 17 = 128 KB Flash, D = silicon revisio; Pin 30 name: the page 22 pin list shows a blank label at pin 30 with PA21 printed above it in the te; TC6/TC7 alternates were omitted. Note 4 on page 32 states TC6 and TC7 are not supported on SAM D21 E",
"3/48 pins cited to the wrong page (name found elsewhere): ['17:VDDIO@p1079', '36:VDDIO@p1079', '40:RESET@p1082']"
],
"pages_sent": 121,
"cost_usd": 0.63,
"at": "2026-10-30T23:16:37"
},
"datasheet": {
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"pages": 1115,
"sha256": "f8ee53b6c6fc1efe",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 48,
"described": 48,
"cites_pages": true,
"refuses_to_fabricate": true
}
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "14ca7676e4932e92f0eca0c6d56ce3018cd28a2531204a70ab7bbacb3eeb3cf5",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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{
"file": "atsamd21g17d-aut-etched.step",
"role": "eda",
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"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "TQFP-48(7x7)",
"Category": "Single Chip Microcomputer/Microcontroller",
"Pins": "48"
},
"appearance": {
"contacts": {
"quote": "including indium tin oxide (ITO) sensor grids. The PTC requires one pin per X-line and one pin per Y-line. In the self-capacitance mode, the PTC requires only one pin (Y-line) for each touch sensor.",
"page": 860,
"doc": "ds.pdf",
"plating": "tin"
},
"version": 1,
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"kind": "recommended_operating",
"unit": "V",
"min": 1.62,
"typ": null,
"max": 3.63,
"conditions": "SAM D21 operating voltage (feature list); same voltage on VDDIN, VDDIO and VDDANA",
"source_page": 2,
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{
"name": "VDDIO supply voltage",
"symbol": "VDDIO",
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"conditions": "Powers I/O lines, OSC8M and XOSC",
"source_page": 36,
"source": "datasheet"
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{
"name": "VDDIN supply voltage",
"symbol": "VDDIN",
"kind": "recommended_operating",
"unit": "V",
"min": 1.62,
"typ": null,
"max": 3.63,
"conditions": "Powers I/O lines and the internal regulator",
"source_page": 36,
"source": "datasheet"
},
{
"name": "VDDANA supply voltage",
"symbol": "VDDANA",
"kind": "recommended_operating",
"unit": "V",
"min": 1.62,
"typ": null,
"max": 3.63,
"conditions": "Powers I/O lines, ADC, AC, DAC, PTC, OSCULP32K, OSC32K, XOSC32K",
"source_page": 36,
"source": "datasheet"
},
{
"name": "Operating temperature range (grade U, -40 to 85 °C)",
"symbol": "",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "Package grade U ordering code (-40 - 85°C Matte Sn plating)",
"source_page": 17,
"source": "datasheet"
}
]
}
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"email": "[email protected]"
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