component
ATSAMD51G18A-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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{
"slug": "atsamd51g18a-mu",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Pre-ordered MCUs, QFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"embedded processors & controllers",
"atsamd51g18a-mu",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"atsamd51g18a-mu.kicad_sym",
"atsamd51g18a-mu.kicad_mod",
"atsamd51g18a-mu.glb",
"atsamd51g18a-mu.step",
"atsamd51g18a-mu.lbr",
"docs/hero.png",
"docs/atsamd51g18a-mu-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"atsamd51g18a-mu-hero.glb",
"atsamd51g18a-mu-hero.overlay.json",
"atsamd51g18a-mu-etched.glb"
],
"component": {
"mpn": "ATSAMD51G18A-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/9793a584e47269a20b87364d41b6eaa9.pdf",
"parts": {
"symbol": "atsamd51g18a-mu.kicad_sym",
"footprint": "atsamd51g18a-mu.kicad_mod",
"model_3d": "atsamd51g18a-mu-hero.glb",
"model_3d_plain": "atsamd51g18a-mu-etched.glb",
"model_3d_step": "atsamd51g18a-mu-etched.step",
"model_3d_step_plain": "atsamd51g18a-mu.step",
"lbr": "atsamd51g18a-mu.lbr"
},
"distributor_links": {
"lcsc": "C614477",
"digikey": "ATSAMD51G18A-MU-ND",
"mouser": "556-ATSAMD51G18AMU"
},
"distributor_check": {
"checked_at": "2026-10-30T18:17:44Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATSAMD51G18A-MU-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "556-ATSAMD51G18AMU",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PA00",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions A-N via PMUX, including EIC EXTINT[0] and the XOSC32K XIN32 crystal input."
},
{
"number": "2",
"name": "PA01",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions A-N via PMUX, including EIC EXTINT[1] and the XOSC32K XOUT32 crystal output."
},
{
"number": "3",
"name": "PA02",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[2], ADC0 AIN[0] and DAC VOUT[0]; it is one of the recommended pins for XOSC32K jitter minimization on the 48-pin package."
},
{
"number": "4",
"name": "PA03",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[3], ANAREF VREFA, ADC0 AIN[1] and PTC X0/Y0; it is one of the recommended pins for XOSC32K jitter minimization on the 48-pin package."
},
{
"number": "5",
"name": "GNDANA",
"type": "power_in",
"description": "Analog ground reference pin for the analog peripherals."
},
{
"number": "6",
"name": "VDDANA",
"type": "power_in",
"description": "Analog supply pin for the analog peripherals; separate voltage limits are not given in the extracted pages."
},
{
"number": "7",
"name": "PB08",
"type": "bidirectional",
"description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[8], ADC0 AIN[2], ADC1 AIN[0] and PTC X1/Y1."
},
{
"number": "8",
"name": "PB09",
"type": "bidirectional",
"description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[9], ADC0 AIN[3], ADC1 AIN[1] and PTC X2/Y2."
},
{
"number": "9",
"name": "PA04",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[4], ANAREF VREFB, ADC0 AIN[4], AC AIN[0] and PTC X3/Y3."
},
{
"number": "10",
"name": "PA05",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[5], ADC0 AIN[5], AC AIN[1] and DAC VOUT[1]."
},
{
"number": "11",
"name": "PA06",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[6], ANAREF VREFC, ADC0 AIN[6], AC AIN[2] and PTC X4/Y4."
},
{
"number": "12",
"name": "PA07",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[7], ADC0 AIN[7], AC AIN[3] and PTC X5/Y5."
},
{
"number": "13",
"name": "PA08",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC NMI, ADC0 AIN[8] and ADC1 AIN[2]; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
},
{
"number": "14",
"name": "PA09",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[9], ADC0 AIN[9] and ADC1 AIN[3]; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
},
{
"number": "15",
"name": "PA10",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[10], ADC0 AIN[10] and QSPI DATA[2]."
},
{
"number": "16",
"name": "PA11",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[11], ADC0 AIN[11], PTC X9/Y9 and QSPI DATA[3]."
},
{
"number": "17",
"name": "VDDIO",
"type": "power_in",
"description": "I/O supply pin for the GPIO clusters it powers; the device operating range is 1.71 V to 3.63 V."
},
{
"number": "18",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin for the device digital I/O and core."
},
{
"number": "19",
"name": "PB10",
"type": "bidirectional",
"description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[10], QSPI SCK and I2S SDI."
},
{
"number": "20",
"name": "PB11",
"type": "bidirectional",
"description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[11], QSPI CS and I2S FS[1]."
},
{
"number": "21",
"name": "PA12",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
},
{
"number": "22",
"name": "PA13",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
},
{
"number": "23",
"name": "PA14",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is the XOSC0 XIN oscillator input."
},
{
"number": "24",
"name": "PA15",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is the XOSC0 XOUT oscillator output."
},
{
"number": "25",
"name": "PA16",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
},
{
"number": "26",
"name": "PA17",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
},
{
"number": "27",
"name": "PA18",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX."
},
{
"number": "28",
"name": "PA19",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX."
},
{
"number": "29",
"name": "PA20",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[4] and PTC X14/Y14."
},
{
"number": "30",
"name": "PA21",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[5] and PTC X15/Y15."
},
{
"number": "31",
"name": "PA22",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[6] and PTC X16/Y16; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
},
{
"number": "32",
"name": "PA23",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[7], PTC X17/Y17 and USB SOF 1kHz; it is a High Sink pin and can be used for SERCOM I2C on VDDIO."
},
{
"number": "33",
"name": "PA24",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[8] and USB DM."
},
{
"number": "34",
"name": "PA25",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[9] and USB DP."
},
{
"number": "35",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin for the device digital I/O and core."
},
{
"number": "36",
"name": "VDDIO",
"type": "power_in",
"description": "I/O supply pin for the GPIO clusters it powers; the device operating range is 1.71 V to 3.63 V."
},
{
"number": "37",
"name": "PB22",
"type": "bidirectional",
"description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[6], USB SOF 1kHz and the XOSC1 XIN oscillator input."
},
{
"number": "38",
"name": "PB23",
"type": "bidirectional",
"description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[7] and the XOSC1 XOUT oscillator output."
},
{
"number": "39",
"name": "PA27",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[11] and GCLK IO[1]."
},
{
"number": "40",
"name": "RESETN",
"type": "input",
"description": "Active-low external reset input (digital, active low) for the device."
},
{
"number": "41",
"name": "VDDCORE",
"type": "power_in",
"description": "Core supply pin for the device internal logic, associated with the embedded buck/LDO regulator; its exact role and limits are not stated in the extracted pages."
},
{
"number": "42",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin for the device digital I/O and core."
},
{
"number": "43",
"name": "VSW",
"type": "passive",
"description": "Switch node of the embedded buck/LDO regulator; its external connection details are not in the extracted pages."
},
{
"number": "44",
"name": "VDDIO",
"type": "power_in",
"description": "I/O supply pin for the GPIO clusters it powers; the device operating range is 1.71 V to 3.63 V."
},
{
"number": "45",
"name": "PA30",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[14] and the SWCLK serial-wire debug clock."
},
{
"number": "46",
"name": "PA31",
"type": "bidirectional",
"description": "PORT group A general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[15] and the SWDIO serial-wire debug data line."
},
{
"number": "47",
"name": "PB02",
"type": "bidirectional",
"description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[2], ADC0 AIN[14] and PTC X20/Y20; it is one of the recommended pins for XOSC32K jitter minimization on the 48-pin package."
},
{
"number": "48",
"name": "PB03",
"type": "bidirectional",
"description": "PORT group B general-purpose I/O that can be assigned to peripheral functions via PMUX, including EIC EXTINT[3], ADC0 AIN[15] and PTC X21/Y21; it is one of the recommended pins for XOSC32K jitter minimization on the 48-pin package."
},
{
"number": "49",
"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 exposed pad (EP) under the 48-pin VQFN is not given a pin number in the datasheet pinout (note 1; Multiplexing rows for pins 21–28 are on datasheet page 34, which is not in the extracted text. Only ; Pin types and roles are inferred. The power supply considerations section (section 7, pages 46–48) i",
"exposed pad 49 added from the footprint"
],
"pages_sent": 107,
"cost_usd": 0.5188,
"at": "2026-10-30T18:17:22"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/9793a584e47269a20b87364d41b6eaa9.pdf",
"pages": 1934,
"sha256": "6f02ccc3e69325ab",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 49,
"described": 49,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "atsamd51g18a-mu.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7.0,
7.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atsamd51g18a-mu-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "96540aea3009c0034b4dee7e5545969c86e156bc868b28c3c3d58f023e728cab",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}