component
ATSAMD20E18A-MU
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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{
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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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"component": {
"mpn": "ATSAMD20E18A-MU",
"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/4add894f99851d10fd5d14388327a8c8.pdf",
"parts": {
"symbol": "atsamd20e18a-mu.kicad_sym",
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"lbr": "atsamd20e18a-mu.lbr"
},
"distributor_links": {
"lcsc": "C1338707",
"digikey": "ATSAMD20E18A-MU-ND",
"mouser": "556-ATSAMD20E18A-MU"
},
"distributor_check": {
"checked_at": "2026-10-30T16:13:15Z",
"source": "Component Ocean /api/assign-pns",
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"status": "found",
"lifecycle": "Active"
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"pins": [
{
"number": "1",
"name": "PA00",
"type": "bidirectional",
"description": "Port A I/O line PA00, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "2",
"name": "PA01",
"type": "bidirectional",
"description": "Port A I/O line PA01, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "3",
"name": "PA02",
"type": "bidirectional",
"description": "Port A I/O line PA02, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "4",
"name": "PA03",
"type": "bidirectional",
"description": "Port A I/O line PA03, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "5",
"name": "PA04",
"type": "bidirectional",
"description": "Port A I/O line PA04, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "6",
"name": "PA05",
"type": "bidirectional",
"description": "Port A I/O line PA05, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "7",
"name": "PA06",
"type": "bidirectional",
"description": "Port A I/O line PA06, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "8",
"name": "PA07",
"type": "bidirectional",
"description": "Port A I/O line PA07, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "9",
"name": "VDDANA",
"type": "power_in",
"description": "Analog supply pin for the ADC, DAC, and analog comparators; the datasheet gives no voltage limit for this pin in the summary text."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Digital ground pin."
},
{
"number": "11",
"name": "PA08",
"type": "bidirectional",
"description": "Port A I/O line PA08, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "12",
"name": "PA09",
"type": "bidirectional",
"description": "Port A I/O line PA09, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "13",
"name": "PA10",
"type": "bidirectional",
"description": "Port A I/O line PA10, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "14",
"name": "PA11",
"type": "bidirectional",
"description": "Port A I/O line PA11, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "15",
"name": "PA14",
"type": "bidirectional",
"description": "Port A I/O line PA14, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "16",
"name": "PA15",
"type": "bidirectional",
"description": "Port A I/O line PA15, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "17",
"name": "PA16",
"type": "bidirectional",
"description": "Port A I/O line PA16, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "18",
"name": "PA17",
"type": "bidirectional",
"description": "Port A I/O line PA17, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "19",
"name": "PA18",
"type": "bidirectional",
"description": "Port A I/O line PA18, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "20",
"name": "PA19",
"type": "bidirectional",
"description": "Port A I/O line PA19, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "21",
"name": "PA22",
"type": "bidirectional",
"description": "Port A I/O line PA22, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "22",
"name": "PA23",
"type": "bidirectional",
"description": "Port A I/O line PA23, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "23",
"name": "PA24",
"type": "bidirectional",
"description": "Port A I/O line PA24, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "24",
"name": "PA25",
"type": "bidirectional",
"description": "Port A I/O line PA25, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "25",
"name": "PA27",
"type": "bidirectional",
"description": "Port A I/O line PA27, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "26",
"name": "RESET",
"type": "input",
"description": "Active reset pin of the device; the datasheet pinout marks it as the RESET pin without stating electrical limits in this summary."
},
{
"number": "27",
"name": "PA28",
"type": "bidirectional",
"description": "Port A I/O line PA28, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "28",
"name": "GND",
"type": "power_in",
"description": "Digital ground pin."
},
{
"number": "29",
"name": "VDDCORE",
"type": "power_out",
"description": "Output of the internal voltage regulator supplying the core; the datasheet pinout labels it as a regulated output supply."
},
{
"number": "30",
"name": "VDDIN",
"type": "power_in",
"description": "Input supply pin for the device; the datasheet pinout labels it as an input supply, with the voltage range given in the operating-voltage feature (1.62 V to 3.63 V)."
},
{
"number": "31",
"name": "PA30",
"type": "bidirectional",
"description": "Port A I/O line PA30, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"number": "32",
"name": "PA31",
"type": "bidirectional",
"description": "Port A I/O line PA31, shown in the datasheet pinout as a digital pin of the 32-pin QFN package."
},
{
"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",
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"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 exposed pad (EP) of the 32-pin QFN is not given a number in the datasheet. The note on page 48 s; Pin types are inferred from the pinout legend (DIGITAL PIN, ANALOG PIN, GROUND, INPUT SUPPLY, REGULA; The text does not say which PA pins are analog-capable on the 32-pin device, so per-pin analog funct",
"exposed pad 33 added from the footprint"
],
"pages_sent": 51,
"cost_usd": 0.1932,
"at": "2026-10-30T16:12:59"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/4add894f99851d10fd5d14388327a8c8.pdf",
"pages": 51,
"sha256": "71d57f206a04faff",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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"checked": "2026-10-30",
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