component
ATSAMD20G18A-MU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, QFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "ATSAMD20G18A-MU",
"brief": "Microchip Tech Pre-ordered MCUs, QFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"component": {
"mpn": "ATSAMD20G18A-MU",
"manufacturer": "Microchip Tech",
"package": "QFN-48-EP(7x7)",
"pin_count": 49,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c4202f39e37903bebda728b052629baa.pdf",
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"distributor_links": {
"lcsc": "C1337806",
"digikey": "ATSAMD20G18A-MU-ND",
"mouser": "556-ATSAMD20G18A-MU"
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"checked_at": "2026-10-30T21:52:34Z",
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"pins": [
{
"number": "1",
"name": "PA00",
"type": "bidirectional",
"description": "Port A digital I/O line PA00 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "2",
"name": "PA01",
"type": "bidirectional",
"description": "Port A digital I/O line PA01 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "3",
"name": "PA02",
"type": "bidirectional",
"description": "Port A digital I/O line PA02 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "4",
"name": "PA03",
"type": "bidirectional",
"description": "Port A digital I/O line PA03 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "5",
"name": "GNDANA",
"type": "power_in",
"description": "Ground pin for the analog domain as labelled on the QFN48 pinout."
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{
"number": "6",
"name": "VDDANA",
"type": "power_in",
"description": "Analog supply pin as labelled on the QFN48 pinout; the device operating voltage is stated as 1.62V to 3.63V in the features list."
},
{
"number": "7",
"name": "PB08",
"type": "bidirectional",
"description": "Port B digital I/O line PB08 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "8",
"name": "PB09",
"type": "bidirectional",
"description": "Port B digital I/O line PB09 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "9",
"name": "PA04",
"type": "bidirectional",
"description": "Port A digital I/O line PA04 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "10",
"name": "PA05",
"type": "bidirectional",
"description": "Port A digital I/O line PA05 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "11",
"name": "PA06",
"type": "bidirectional",
"description": "Port A digital I/O line PA06 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "12",
"name": "PA07",
"type": "bidirectional",
"description": "Port A digital I/O line PA07 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "13",
"name": "PA08",
"type": "bidirectional",
"description": "Port A digital I/O line PA08 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "14",
"name": "PA09",
"type": "bidirectional",
"description": "Port A digital I/O line PA09 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "15",
"name": "PA10",
"type": "bidirectional",
"description": "Port A digital I/O line PA10 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "16",
"name": "PA11",
"type": "bidirectional",
"description": "Port A digital I/O line PA11 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "17",
"name": "VDDIO",
"type": "power_in",
"description": "I/O supply pin as labelled on the QFN48 pinout; the device operating voltage is stated as 1.62V to 3.63V in the features list."
},
{
"number": "18",
"name": "GND",
"type": "power_in",
"description": "Digital ground pin as labelled on the QFN48 pinout."
},
{
"number": "19",
"name": "PB10",
"type": "bidirectional",
"description": "Port B digital I/O line PB10 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "20",
"name": "PB11",
"type": "bidirectional",
"description": "Port B digital I/O line PB11 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "21",
"name": "PA12",
"type": "bidirectional",
"description": "Port A digital I/O line PA12 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "22",
"name": "PA13",
"type": "bidirectional",
"description": "Port A digital I/O line PA13 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "23",
"name": "PA14",
"type": "bidirectional",
"description": "Port A digital I/O line PA14 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "24",
"name": "PA15",
"type": "bidirectional",
"description": "Port A digital I/O line PA15 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "25",
"name": "PA16",
"type": "bidirectional",
"description": "Port A digital I/O line PA16 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "26",
"name": "PA17",
"type": "bidirectional",
"description": "Port A digital I/O line PA17 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "27",
"name": "PA18",
"type": "bidirectional",
"description": "Port A digital I/O line PA18 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "28",
"name": "PA19",
"type": "bidirectional",
"description": "Port A digital I/O line PA19 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "29",
"name": "PA20",
"type": "bidirectional",
"description": "Port A digital I/O line PA20 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "30",
"name": "PA21",
"type": "bidirectional",
"description": "Port A digital I/O line PA21 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "31",
"name": "PA22",
"type": "bidirectional",
"description": "Port A digital I/O line PA22 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "32",
"name": "PA23",
"type": "bidirectional",
"description": "Port A digital I/O line PA23 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "33",
"name": "PA24",
"type": "bidirectional",
"description": "Port A digital I/O line PA24 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "34",
"name": "PA25",
"type": "bidirectional",
"description": "Port A digital I/O line PA25 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "35",
"name": "GND",
"type": "power_in",
"description": "Digital ground pin as labelled on the QFN48 pinout."
},
{
"number": "36",
"name": "VDDIO",
"type": "power_in",
"description": "I/O supply pin as labelled on the QFN48 pinout; the device operating voltage is stated as 1.62V to 3.63V in the features list."
},
{
"number": "37",
"name": "PB22",
"type": "bidirectional",
"description": "Port B digital I/O line PB22 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "38",
"name": "PB23",
"type": "bidirectional",
"description": "Port B digital I/O line PB23 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "39",
"name": "PA27",
"type": "bidirectional",
"description": "Port A digital I/O line PA27 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "40",
"name": "RESET",
"type": "input",
"description": "Reset pin as labelled on the QFN48 pinout; the summary gives no further electrical limits for it."
},
{
"number": "41",
"name": "PA28",
"type": "bidirectional",
"description": "Port A digital I/O line PA28 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "42",
"name": "GND",
"type": "power_in",
"description": "Digital ground pin as labelled on the QFN48 pinout."
},
{
"number": "43",
"name": "VDDCORE",
"type": "power_out",
"description": "Core voltage pin labelled as a regulated output supply on the QFN48 pinout; the summary gives no voltage value for it."
},
{
"number": "44",
"name": "VDDIN",
"type": "power_in",
"description": "Main supply input pin as labelled on the QFN48 pinout; the device operating voltage is stated as 1.62V to 3.63V in the features list."
},
{
"number": "45",
"name": "PA30",
"type": "bidirectional",
"description": "Port A digital I/O line PA30 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "46",
"name": "PA31",
"type": "bidirectional",
"description": "Port A digital I/O line PA31 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "47",
"name": "PB02",
"type": "bidirectional",
"description": "Port B digital I/O line PB02 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "48",
"name": "PB03",
"type": "bidirectional",
"description": "Port B digital I/O line PB03 as labelled on the QFN48 pinout; electrical limits for this pin are not stated in the summary."
},
{
"number": "49",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
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"sha256": "17550497371e62e4",
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"cad": "KiCad official (CC-BY-SA 4.0)",
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"Package": "QFN-48-EP(7x7)",
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