component
ATSAMD21J17D-AU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, TQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "atsamd21j17d-au",
"title": "ATSAMD21J17D-AU",
"brief": "Microchip Tech Pre-ordered MCUs, TQFP-64(10x10). 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",
"embedded processors & controllers",
"atsamd21j17d-au",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATSAMD21J17D-AU",
"manufacturer": "Microchip Tech",
"package": "TQFP-64(10x10)",
"pin_count": 64,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/64c43a05f1f3a3e3f441cd9b2ec4f6c3.pdf",
"parts": {
"symbol": "atsamd21j17d-au.kicad_sym",
"footprint": "atsamd21j17d-au.kicad_mod",
"model_3d": "atsamd21j17d-au-hero.glb",
"model_3d_plain": "atsamd21j17d-au-etched.glb",
"model_3d_step": "atsamd21j17d-au-etched.step",
"model_3d_step_plain": "atsamd21j17d-au.step",
"lbr": "atsamd21j17d-au.lbr"
},
"distributor_links": {
"lcsc": "C1338633",
"digikey": "ATSAMD21J17D-AU-ND",
"mouser": "556-ATSAMD21J17D-AU"
},
"distributor_check": {
"checked_at": "2026-10-26T19:00:16Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATSAMD21J17D-AU-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "556-ATSAMD21J17D-AU",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PA00",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[0], SERCOM1/PAD[0], TCC2/WO[0]; XIN32 pin of the 32kHz crystal oscillator."
},
{
"number": "2",
"name": "PA01",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[1], SERCOM1/PAD[1], TCC2/WO[1]; XOUT32 pin of the 32kHz crystal oscillator."
},
{
"number": "3",
"name": "PA02",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[2], ADC AIN[0], PTC Y[0], DAC VOUT, TCC3/WO[0]."
},
{
"number": "4",
"name": "PA03",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[3], ADC/DAC VREFA, ADC AIN[1], PTC Y[1], TCC3/WO[1]."
},
{
"number": "5",
"name": "PB04",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[4], ADC AIN[12], PTC Y[10]."
},
{
"number": "6",
"name": "PB05",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[5], ADC AIN[13], PTC Y[11]."
},
{
"number": "7",
"name": "GNDANA",
"type": "power_in",
"description": "Ground for the analog power domain."
},
{
"number": "8",
"name": "VDDANA",
"type": "power_in",
"description": "Analog supply voltage, 1.62V-3.63V, with 100nF and 10uF decoupling recommended."
},
{
"number": "9",
"name": "PB06",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[6], ADC AIN[14], PTC Y[12]."
},
{
"number": "10",
"name": "PB07",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[7], ADC AIN[15], PTC Y[13]."
},
{
"number": "11",
"name": "PB08",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[8], ADC AIN[2], PTC Y[14], SERCOM4/PAD[0], TC4/WO[0], TCC3/WO[6]."
},
{
"number": "12",
"name": "PB09",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[9], ADC AIN[3], PTC Y[15], SERCOM4/PAD[1], TC4/WO[1], TCC3/WO[7]."
},
{
"number": "13",
"name": "PA04",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[4], ADC/VREFB, ADC AIN[4], AC AIN[0], PTC Y[2], SERCOM0/PAD[0], TCC0/WO[0], TCC3/WO[2]."
},
{
"number": "14",
"name": "PA05",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[5], ADC AIN[5], AC AIN[1], PTC Y[3], SERCOM0/PAD[1], TCC0/WO[1], TCC3/WO[3]."
},
{
"number": "15",
"name": "PA06",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[6], ADC AIN[6], AC AIN[2], PTC Y[4], SERCOM0/PAD[2], TCC1/WO[0], TCC3/WO[4]."
},
{
"number": "16",
"name": "PA07",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[7], ADC AIN[7], AC AIN[3], PTC Y[5], SERCOM0/PAD[3], TCC1/WO[1], TCC3/WO[5], I2S/SD[0]."
},
{
"number": "17",
"name": "PA08",
"type": "bidirectional",
"description": "GPIO on VDDIO with NMI, ADC AIN[16], PTC X[0], SERCOM0/PAD[0], SERCOM2/PAD[0], TCC0/WO[0], TCC1/WO[2], I2S/SD[1]."
},
{
"number": "18",
"name": "PA09",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[9], ADC AIN[17], PTC X[1], SERCOM0/PAD[1], SERCOM2/PAD[1], TCC0/WO[1], TCC1/WO[3], I2S/MCK[0]."
},
{
"number": "19",
"name": "PA10",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[10], ADC AIN[18], PTC X[2], SERCOM0/PAD[2], SERCOM2/PAD[2], TCC1/WO[0], TCC0/WO[2], I2S/SCK[0], GCLK_IO[4]."
},
{
"number": "20",
"name": "PA11",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[11], ADC AIN[19], PTC X[3], SERCOM0/PAD[3], SERCOM2/PAD[3], TCC1/WO[1], TCC0/WO[3], I2S/FS[0], GCLK_IO[5]."
},
{
"number": "21",
"name": "VDDIO",
"type": "power_in",
"description": "Digital I/O supply voltage, 1.62V-3.63V, with 100nF and 10uF decoupling recommended."
},
{
"number": "22",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "23",
"name": "PB10",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[10], SERCOM4/PAD[2], TC5/WO[0], TCC0/WO[4], I2S/MCK[1], GCLK_IO[4]."
},
{
"number": "24",
"name": "PB11",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[11], SERCOM4/PAD[3], TC5/WO[1], TCC0/WO[5], I2S/SCK[1], GCLK_IO[5]."
},
{
"number": "25",
"name": "PB12",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[12], PTC X[12], SERCOM4/PAD[0], TC4/WO[0], TCC0/WO[6], I2S/FS[1], GCLK_IO[6]; supports I2C Hs mode."
},
{
"number": "26",
"name": "PB13",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[13], PTC X[13], SERCOM4/PAD[1], TC4/WO[1], TCC0/WO[7], GCLK_IO[7]; supports I2C Hs mode."
},
{
"number": "27",
"name": "PB14",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[14], PTC X[14], SERCOM4/PAD[2], TC5/WO[0], GCLK_IO[0]."
},
{
"number": "28",
"name": "PB15",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[15], PTC X[15], SERCOM4/PAD[3], TC5/WO[1], GCLK_IO[1]."
},
{
"number": "29",
"name": "PA12",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[12], SERCOM2/PAD[0], SERCOM4/PAD[0], TCC2/WO[0], TCC0/WO[6], AC/CMP[0]; supports I2C Hs mode."
},
{
"number": "30",
"name": "PA13",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[13], SERCOM2/PAD[1], SERCOM4/PAD[1], TCC2/WO[1], TCC0/WO[7], AC/CMP[1]; supports I2C Hs mode."
},
{
"number": "31",
"name": "PA14",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[14], SERCOM2/PAD[2], SERCOM4/PAD[2], TC3/WO[0], TCC0/WO[4], GCLK_IO[0]; XIN of the crystal oscillator."
},
{
"number": "32",
"name": "PA15",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[15], SERCOM2/PAD[3], SERCOM4/PAD[3], TC3/WO[1], TCC0/WO[5], GCLK_IO[1]; XOUT of the crystal oscillator."
},
{
"number": "33",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "34",
"name": "VDDIO",
"type": "power_in",
"description": "Digital I/O supply voltage, 1.62V-3.63V, with 100nF and 10uF decoupling recommended."
},
{
"number": "35",
"name": "PA16",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[0], PTC X[4], SERCOM1/PAD[0], SERCOM3/PAD[0], TCC2/WO[0], TCC0/WO[6], GCLK_IO[2]; supports I2C Hs mode."
},
{
"number": "36",
"name": "PA17",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[1], PTC X[5], SERCOM1/PAD[1], SERCOM3/PAD[1], TCC2/WO[1], TCC0/WO[7], GCLK_IO[3]; supports I2C Hs mode."
},
{
"number": "37",
"name": "PA18",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[2], PTC X[6], SERCOM1/PAD[2], SERCOM3/PAD[2], TC3/WO[0], TCC0/WO[2], AC/CMP[0]."
},
{
"number": "38",
"name": "PA19",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[3], PTC X[7], SERCOM1/PAD[3], SERCOM3/PAD[3], TC3/WO[1], TCC0/WO[3], I2S/SD[0], AC/CMP[1]."
},
{
"number": "39",
"name": "PB16",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[0], SERCOM5/PAD[0], TC6/WO[0], TCC0/WO[4], I2S/SD[1], GCLK_IO[2]; supports I2C Hs mode."
},
{
"number": "40",
"name": "PB17",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[1], SERCOM5/PAD[1], TC6/WO[1], TCC0/WO[5], I2S/MCK[0], GCLK_IO[3]; supports I2C Hs mode."
},
{
"number": "41",
"name": "PA20",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[4], PTC X[8], SERCOM5/PAD[2], SERCOM3/PAD[2], TC7/WO[0], TCC0/WO[6], I2S/SCK[0], GCLK_IO[4]."
},
{
"number": "42",
"name": "PA21",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[5], PTC X[9], SERCOM5/PAD[3], SERCOM3/PAD[3], TC7/WO[1], TCC0/WO[7], I2S/FS[0], GCLK_IO[5]."
},
{
"number": "43",
"name": "PA22",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[6], PTC X[10], SERCOM3/PAD[0], SERCOM5/PAD[0], TC4/WO[0], TCC0/WO[4], GCLK_IO[6]; supports I2C Hs mode."
},
{
"number": "44",
"name": "PA23",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[7], PTC X[11], SERCOM3/PAD[1], SERCOM5/PAD[1], TC4/WO[1], TCC0/WO[5], USB SOF 1kHz, GCLK_IO[7]; supports I2C Hs mode."
},
{
"number": "45",
"name": "PA24",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[12], SERCOM3/PAD[2], SERCOM5/PAD[2], TC5/WO[0], TCC1/WO[2], USB DM; enable a pull-up in GPIO input mode if left unconnected."
},
{
"number": "46",
"name": "PA25",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[13], SERCOM3/PAD[3], SERCOM5/PAD[3], TC5/WO[1], TCC1/WO[3], USB DP; enable a pull-up in GPIO input mode if left unconnected."
},
{
"number": "47",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "48",
"name": "VDDIO",
"type": "power_in",
"description": "Digital I/O supply voltage, 1.62V-3.63V, with 100nF and 10uF decoupling recommended."
},
{
"number": "49",
"name": "PB22",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[6], SERCOM5/PAD[2], TC7/WO[0], TCC3/WO[0], GCLK_IO[0]."
},
{
"number": "50",
"name": "PB23",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[7], SERCOM5/PAD[3], TC7/WO[1], TCC3/WO[1], GCLK_IO[1]."
},
{
"number": "51",
"name": "PA27",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[15], TCC3/WO[6], GCLK_IO[0]."
},
{
"number": "52",
"name": "RESET",
"type": "input",
"description": "Active-low external reset input with internal pull-up; low-level threshold below 0.33*VDDIO (VDDIO 1.6V-2.0V) or 0.36*VDDIO (VDDIO 2.7V-3.6V)."
},
{
"number": "53",
"name": "PA28",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[8], TCC3/WO[7], GCLK_IO[0]."
},
{
"number": "54",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "55",
"name": "VDDCORE",
"type": "power_out",
"description": "Regulated core supply output, 1.6V to 1.8V, requiring external 1uF decoupling capacitor."
},
{
"number": "56",
"name": "VDDIN",
"type": "power_in",
"description": "Input supply for the internal voltage regulator, 1.62V-3.63V."
},
{
"number": "57",
"name": "PA30",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[10], SERCOM1/PAD[2], TCC1/WO[0], TCC3/WO[4], GCLK_IO[0]; SWCLK for serial wire debug."
},
{
"number": "58",
"name": "PA31",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[11], SERCOM1/PAD[3], TCC1/WO[1], TCC3/WO[5]; SWDIO, active only in the presence of a debugger."
},
{
"number": "59",
"name": "PB30",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[14], SERCOM5/PAD[0], TCC0/WO[0], TCC1/WO[2]; supports I2C Hs mode."
},
{
"number": "60",
"name": "PB31",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[15], SERCOM5/PAD[1], TCC0/WO[1], TCC1/WO[3]; supports I2C Hs mode."
},
{
"number": "61",
"name": "PB00",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[0], ADC AIN[8], PTC Y[6], SERCOM5/PAD[2], TC7/WO[0]."
},
{
"number": "62",
"name": "PB01",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[1], ADC AIN[9], PTC Y[7], SERCOM5/PAD[3], TC7/WO[1]."
},
{
"number": "63",
"name": "PB02",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[2], ADC AIN[10], PTC Y[8], SERCOM5/PAD[0], TC6/WO[0], TCC3/WO[2]."
},
{
"number": "64",
"name": "PB03",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[3], ADC AIN[11], PTC Y[9], SERCOM5/PAD[1], TC6/WO[1], TCC3/WO[3]."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet text does not state the package for the 'J' ordering code in this extract. TQFP64 pin ; Pin types are inferred: RESET is typed input, VDDCORE power_out as a regulator output, and all GPIO ; The XIN/XOUT pin mapping (PA14/PA15) and XIN32/XOUT32 (PA00/PA01) come from Table 7-3, not the pinou"
],
"pages_sent": 121,
"cost_usd": 0.9611,
"at": "2026-10-26T18:59:53"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/64c43a05f1f3a3e3f441cd9b2ec4f6c3.pdf",
"pages": 1115,
"sha256": "3bdc7b5b2d256025",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 64,
"described": 64,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "atsamd21j17d-au.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
12,
12,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "60567e81b0770b6c519104183a7a05ba52dddc11146b5fbe21434fbb5801696c",
"checked": "2026-10-26",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atsamd21j17d-au-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
12,
12,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "0de4085d59c8028f044c2574dc292d2908ea48b043f9605a52d6bedf131d1481",
"checked": "2026-10-26",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "TQFP-64(10x10)",
"Category": "Embedded Processors & Controllers",
"Pins": "64"
},
"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,
"datasheet_sha256": "3bdc7b5b2d25602519b7b0ab5e680844c5f0bea9721a5a85fa0888a73c2bf889"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "3bdc7b5b2d25602519b7b0ab5e680844c5f0bea9721a5a85fa0888a73c2bf889",
"rows": [
{
"name": "Operating supply voltage (VDD, SAM D21)",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 1.62,
"typ": null,
"max": 3.63,
"conditions": "VDDIO, VDDIN and VDDANA must be the same voltage",
"source_page": 36,
"source": "datasheet"
},
{
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