component
ATSAMD21E17A-MUT
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"description": "Microchip Tech Pre-ordered MCUs, QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"embedded processors & controllers",
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"component": {
"mpn": "ATSAMD21E17A-MUT",
"manufacturer": "Microchip Tech",
"package": "QFN-32-EP(5x5)",
"pin_count": 33,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d70e0a926271e38a2611b8b6dcc19c07.pdf",
"parts": {
"symbol": "atsamd21e17a-mut.kicad_sym",
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"lbr": "atsamd21e17a-mut.lbr"
},
"distributor_links": {
"lcsc": "C614305",
"digikey": "ATSAMD21E17A-MUTTR-ND",
"mouser": "556-ATSAMD21E17A-MUT"
},
"distributor_check": {
"checked_at": "2026-11-02T17:37:32Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATSAMD21E17A-MUTTR-ND",
"status": "found"
},
"mouser": {
"pn": "556-ATSAMD21E17A-MUT",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PA00",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDANA domain, also multiplexed to the 32 kHz crystal input XIN32, EXTINT[0], SERCOM1/PAD[0] and TCC2/WO[0]."
},
{
"number": "2",
"name": "PA01",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDANA domain, also multiplexed to the 32 kHz crystal output XOUT32, EXTINT[1], SERCOM1/PAD[1] and TCC2/WO[1]."
},
{
"number": "3",
"name": "PA02",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDANA domain, also usable as analog input AIN[0] and DAC output VOUT, with EXTINT[2] and TCC3/WO[0]."
},
{
"number": "4",
"name": "PA03",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDANA domain, also usable as analog input AIN[1] and ADC/DAC voltage reference VREFA, with EXTINT[3] and TCC3/WO[1]."
},
{
"number": "5",
"name": "PA04",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDANA domain, also usable as analog input AIN[4] and AIN[0] and ADC reference VREFB, with EXTINT[4], SERCOM0/PAD[0] and TCC0/WO[0]."
},
{
"number": "6",
"name": "PA05",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDANA domain, also usable as analog input AIN[5] and AIN[1], with EXTINT[5], SERCOM0/PAD[1] and TCC0/WO[1]."
},
{
"number": "7",
"name": "PA06",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDANA domain, also usable as analog input AIN[6] and AIN[2], with EXTINT[6], SERCOM0/PAD[2] and TCC1/WO[0]."
},
{
"number": "8",
"name": "PA07",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDANA domain, also usable as analog input AIN[7] and AIN[3], with EXTINT[7], SERCOM0/PAD[3] and TCC1/WO[1]."
},
{
"number": "9",
"name": "VDDANA",
"type": "power_in",
"description": "Analog supply pin for the analog peripherals, referenced to GND at pin 10."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground pin for the digital and I/O domain."
},
{
"number": "11",
"name": "PA08",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to NMI, AIN[16], SERCOM0/PAD[0], SERCOM2/PAD[0] and TCC0/WO[0]."
},
{
"number": "12",
"name": "PA09",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[9], AIN[17], SERCOM0/PAD[1], SERCOM2/PAD[1] and TCC0/WO[1]."
},
{
"number": "13",
"name": "PA10",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[10], AIN[18], SERCOM0/PAD[2], SERCOM2/PAD[2] and TCC1/WO[0]."
},
{
"number": "14",
"name": "PA11",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[11], AIN[19], SERCOM0/PAD[3], SERCOM2/PAD[3] and TCC1/WO[1]."
},
{
"number": "15",
"name": "PA14",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to the crystal input XIN for XOSC, EXTINT[14], SERCOM2/PAD[2] and TC3/WO[0]."
},
{
"number": "16",
"name": "PA15",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to the crystal output XOUT for XOSC, EXTINT[15], SERCOM2/PAD[3] and TC3/WO[1]."
},
{
"number": "17",
"name": "PA16",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[0], X[4], SERCOM1/PAD[0], SERCOM3/PAD[0] and TCC2/WO[0]."
},
{
"number": "18",
"name": "PA17",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[1], X[5], SERCOM1/PAD[1], SERCOM3/PAD[1] and TCC2/WO[1]."
},
{
"number": "19",
"name": "PA18",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[2], X[6], SERCOM1/PAD[2], SERCOM3/PAD[2], TC3/WO[0] and AC/CMP[0]."
},
{
"number": "20",
"name": "PA19",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[3], X[7], SERCOM1/PAD[3], SERCOM3/PAD[3], TC3/WO[1] and AC/CMP[1]."
},
{
"number": "21",
"name": "PA22",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[6], X[10], SERCOM3/PAD[0], SERCOM5/PAD[0], TC4/WO[0] and TCC0/WO[4]."
},
{
"number": "22",
"name": "PA23",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[7], X[11], SERCOM3/PAD[1], SERCOM5/PAD[1], TC4/WO[1] and USB/SOF 1kHz."
},
{
"number": "23",
"name": "PA24",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[12], SERCOM3/PAD[2], SERCOM5/PAD[2], TC5/WO[0] and USB DM; no drive-strength option is available on this pin."
},
{
"number": "24",
"name": "PA25",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[13], SERCOM3/PAD[3], SERCOM5/PAD[3], TC5/WO[1] and USB DP; no drive-strength option is available on this pin."
},
{
"number": "25",
"name": "PA27",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[15], TCC3/WO[6] and GCLK_IO[0]."
},
{
"number": "26",
"name": "RESET",
"type": "input",
"description": "External active-low reset input pin of the device."
},
{
"number": "27",
"name": "PA28",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to EXTINT[8], TCC3/WO[7] and GCLK_IO[0]."
},
{
"number": "28",
"name": "GND",
"type": "power_in",
"description": "Ground pin for the digital core and I/O domain."
},
{
"number": "29",
"name": "VDDCORE",
"type": "power_out",
"description": "Regulated output of the internal voltage regulator that supplies the core logic."
},
{
"number": "30",
"name": "VDDIN",
"type": "power_in",
"description": "Input supply pin for the internal voltage regulator and I/O domain."
},
{
"number": "31",
"name": "PA30",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to the SWD clock SWCLK, EXTINT[10], SERCOM1/PAD[2], TCC1/WO[0] and TCC3/WO[4]."
},
{
"number": "32",
"name": "PA31",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O in the VDDIO domain, also multiplexed to the SWD data pin SWDIO (active only with a debugger present), EXTINT[11], SERCOM1/PAD[3], TCC1/WO[1] and TCC3/WO[5]."
},
{
"number": "33",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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: The QFN-32-EP(5x5) exposed thermal pad is not numbered in the extracted QFN32/TQFP32 pinout text (pa; The datasheet gives no per-pin electrical limits (voltage or current) for the individual pins; the p; Pin PA24 and PA25 are noted in the multiplexing table as needing a pull-up if not connected, and the"
],
"pages_sent": 118,
"cost_usd": 0.1323,
"at": "2026-11-02T17:37:23"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/d70e0a926271e38a2611b8b6dcc19c07.pdf",
"pages": 1148,
"sha256": "18ca1ccab5aa330f",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"file": "atsamd21e17a-mut.step",
"role": "plain",
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"units": "mm",
"origin": "footprint origin = pad-pattern centre",
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"footprint_binding": "identity",
"sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
"checked": "2026-11-02",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atsamd21e17a-mut-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
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"sha256": "88cabce264549387acef6ba48f712d21ec84068666772ce198b7bc168555f7a3",
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}