component
ATSAMD21E17A-AU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397
{
"schema_version": 1,
"type": "component",
"slug": "atsamd21e17a-au",
"title": "ATSAMD21E17A-AU",
"brief": "Microchip Tech Pre-ordered MCUs, TQFP-32(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",
"embedded processors & controllers",
"atsamd21e17a-au",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATSAMD21E17A-AU",
"manufacturer": "Microchip Tech",
"package": "TQFP-32(7x7)",
"pin_count": 32,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d78983d93ec3b6ab33a93da2392c6734.pdf",
"parts": {
"symbol": "atsamd21e17a-au.kicad_sym",
"footprint": "atsamd21e17a-au.kicad_mod",
"model_3d": "atsamd21e17a-au-hero.glb",
"model_3d_plain": "atsamd21e17a-au-etched.glb",
"model_3d_step": "atsamd21e17a-au-etched.step",
"model_3d_step_plain": "atsamd21e17a-au.step",
"lbr": "atsamd21e17a-au.lbr"
},
"distributor_links": {
"lcsc": "C1337408",
"digikey": "ATSAMD21E17A-AU-ND",
"mouser": "556-ATSAMD21E17A-AU"
},
"distributor_check": {
"checked_at": "2026-10-30T22:44:20Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATSAMD21E17A-AU-ND",
"status": "found"
},
"mouser": {
"pn": "556-ATSAMD21E17A-AU",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PA00",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA analog supply domain, also EXTINT[0] and the XIN32 32 kHz crystal input when XOSC32K is enabled."
},
{
"number": "2",
"name": "PA01",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA analog supply domain, also EXTINT[1] and the XOUT32 32 kHz crystal output when XOSC32K is enabled."
},
{
"number": "3",
"name": "PA02",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA analog supply domain, also EXTINT[2], analog input AIN[0], PTC input Y[0] and DAC output VOUT."
},
{
"number": "4",
"name": "PA03",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA analog supply domain, also EXTINT[3], the external analog reference VREFA, analog input AIN[1] and PTC input Y[1]."
},
{
"number": "5",
"name": "PA04",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA analog supply domain, also EXTINT[4], the external analog reference VREFB, and analog input AIN[4]."
},
{
"number": "6",
"name": "PA05",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA analog supply domain, also EXTINT[5] and analog input AIN[5]."
},
{
"number": "7",
"name": "PA06",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA analog supply domain, also EXTINT[6] and analog input AIN[6]."
},
{
"number": "8",
"name": "PA07",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDANA analog supply domain, also EXTINT[7] and analog input AIN[7]."
},
{
"number": "9",
"name": "VDDANA",
"type": "power_in",
"description": "Analog supply voltage, specified at 1.62V to 3.63V with decoupling of 100nF and 10µF."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground for the digital domain."
},
{
"number": "11",
"name": "PA08",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also the NMI non-maskable interrupt input, analog input AIN[16] and SERCOM0/PAD[0] with I2C high-speed capability."
},
{
"number": "12",
"name": "PA09",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[9], analog input AIN[17] and SERCOM0/PAD[1] with I2C high-speed capability."
},
{
"number": "13",
"name": "PA10",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[10], analog input AIN[18] and SERCOM0/PAD[2]."
},
{
"number": "14",
"name": "PA11",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[11], analog input AIN[19] and SERCOM0/PAD[3]."
},
{
"number": "15",
"name": "PA14",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[14] and the XIN crystal input when XOSC is enabled."
},
{
"number": "16",
"name": "PA15",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[15] and the XOUT crystal output when XOSC is enabled."
},
{
"number": "17",
"name": "PA16",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[0], SERCOM1/PAD[0] and SERCOM3/PAD[0]."
},
{
"number": "18",
"name": "PA17",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[1], SERCOM1/PAD[1] and SERCOM3/PAD[1]."
},
{
"number": "19",
"name": "PA18",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[2], SERCOM1/PAD[2] and analog comparator output AC/CMP[0]."
},
{
"number": "20",
"name": "PA19",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[3], SERCOM1/PAD[3] and analog comparator output AC/CMP[1]."
},
{
"number": "21",
"name": "PA22",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[6], SERCOM3/PAD[0] and SERCOM5/PAD[0], with I2C high-speed capability."
},
{
"number": "22",
"name": "PA23",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[7], SERCOM3/PAD[1] and the 1 kHz USB start-of-frame output SOF 1kHz."
},
{
"number": "23",
"name": "PA24",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[12] and the USB D- data line DM; a pull-up is recommended if the pin is unconnected to avoid extra power consumption below 1 mA."
},
{
"number": "24",
"name": "PA25",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[13] and the USB D+ data line DP; a pull-up is recommended if the pin is unconnected to avoid extra power consumption below 1 mA."
},
{
"number": "25",
"name": "PA27",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[15], TCC3/WO[6] and GCLK_IO[0]."
},
{
"number": "26",
"name": "RESET",
"type": "input",
"description": "External reset input, active low, with an internal pull-up resistor; the low-level threshold is below 0.36 × VDDIO for VDDIO 2.7V to 3.6V."
},
{
"number": "27",
"name": "PA28",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[8], TCC3/WO[7] and GCLK_IO[0]."
},
{
"number": "28",
"name": "GND",
"type": "power_in",
"description": "Ground for the digital domain."
},
{
"number": "29",
"name": "VDDCORE",
"type": "power_out",
"description": "Core supply output from the internal regulator, 1.6V to 1.8V, requiring a 1µF decoupling capacitor close to the device."
},
{
"number": "30",
"name": "VDDIN",
"type": "power_in",
"description": "Input supply to the internal voltage regulator and I/O supply, specified at 1.62V to 3.63V."
},
{
"number": "31",
"name": "PA30",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[10], TCC1/WO[0] and the SWCLK Serial Wire Debug clock pin, which should have a pull-up on the schematic."
},
{
"number": "32",
"name": "PA31",
"type": "bidirectional",
"description": "General-purpose I/O on the VDDIO domain, also EXTINT[11], TCC1/WO[1] and the SWDIO Serial Wire Debug data pin, active when a debugger is present."
}
],
"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: ATSAMD21E17A is device variant A, so the TQFP32 pinout is taken from the SAM D21ExxA/B/D table (page"
],
"pages_sent": 121,
"cost_usd": 0.142,
"at": "2026-10-30T22:44:04"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/d78983d93ec3b6ab33a93da2392c6734.pdf",
"pages": 1115,
"sha256": "503cf97e1fd7dbb2",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 32,
"described": 32,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "atsamd21e17a-au.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "53431be61c684e9d923915676a90cb08050c23ee3f834d76a77a3b19b41422f1",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atsamd21e17a-au-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "d38f94768b21fa34de4acd7cf40aeb9eba48982bfc9b32f23f2f19a2f3506e99",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "TQFP-32(7x7)",
"Category": "Embedded Processors & Controllers",
"Pins": "32"
},
"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": "503cf97e1fd7dbb27e7ecf63088ed555923117fab15aad24a15fe762455f90f7"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "503cf97e1fd7dbb27e7ecf63088ed555923117fab15aad24a15fe762455f90f7",
"rows": [
{
"name": "Operating voltage (VDD: VDDIN, VDDIO and VDDANA)",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 1.62,
"typ": null,
"max": 3.63,
"conditions": "",
"source_page": 36,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"atsamd21e17a-au"
],
"discovery_pitch": "ATSAMD21E17A-AU (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"atsamd21e17a-au.kicad_sym",
"atsamd21e17a-au.kicad_mod",
"atsamd21e17a-au.glb",
"atsamd21e17a-au.step",
"atsamd21e17a-au.lbr",
"docs/hero.png",
"docs/atsamd21e17a-au-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"atsamd21e17a-au-hero.glb",
"atsamd21e17a-au-hero.overlay.json",
"atsamd21e17a-au-etched.glb"
],
"visibility": {
"public": true
}
}