component
ATSAM3X8EA-AU
Public Made by Adomby adom
Microchip Tech ATMEL & AVR, LQFP-144(20x20). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
Ray
Publish 0.1.1
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{
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"type": "component",
"description": "Microchip Tech ATMEL & AVR, LQFP-144(20x20). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
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"component": {
"mpn": "ATSAM3X8EA-AU",
"manufacturer": "Microchip Tech",
"package": "LQFP-144(20x20)",
"pin_count": 144,
"category": "Embedded Processors & Controllers",
"subcategory": "ATMEL & AVR",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/89ae15ab595f43aead19bb213686085c.pdf",
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"distributor_links": {
"lcsc": "C79305",
"digikey": "ATSAM3X8EA-AU-ND",
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"checked_at": "2026-11-05T15:59:30Z",
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"pins": [
{
"number": "1",
"name": "PB26",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "2",
"name": "PA9",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "3",
"name": "PA10",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "4",
"name": "PA11",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "5",
"name": "PA12",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "6",
"name": "PA13",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "7",
"name": "PA14",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "8",
"name": "PA15",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "9",
"name": "PA17",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "10",
"name": "VDDCORE",
"type": "power_in",
"description": "Powers the core, embedded memories and peripherals; voltage range 1.62V to 1.95V."
},
{
"number": "11",
"name": "VDDIO",
"type": "power_in",
"description": "Powers the peripheral I/O lines; voltage range 1.62V to 3.6V."
},
{
"number": "12",
"name": "GND",
"type": "power_in",
"description": "Ground common to the VDDCORE and VDDIO power supplies."
},
{
"number": "13",
"name": "PD0",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "14",
"name": "PD1",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "15",
"name": "PD2",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "16",
"name": "PD3",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "17",
"name": "PD4",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "18",
"name": "PD5",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "19",
"name": "PD6",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "20",
"name": "PD7",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "21",
"name": "PD8",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "22",
"name": "PD9",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "23",
"name": "PA0",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "24",
"name": "PA1",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "25",
"name": "PA5",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "26",
"name": "PA7",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "27",
"name": "PA8",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "28",
"name": "PB28",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "29",
"name": "PB29",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "30",
"name": "PB30",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "31",
"name": "PB31",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "32",
"name": "PD10",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "33",
"name": "GNDPLL",
"type": "power_in",
"description": "Separate ground for the VDDPLL supply."
},
{
"number": "34",
"name": "VDDPLL",
"type": "power_in",
"description": "Powers PLL A, UPLL and the 3-20 MHz oscillator; voltage range 1.62V to 1.95V."
},
{
"number": "35",
"name": "XOUT",
"type": "output",
"description": "Output of the 3 to 20 MHz crystal or ceramic oscillator."
},
{
"number": "36",
"name": "XIN",
"type": "input",
"description": "Input of the 3 to 20 MHz crystal or ceramic oscillator."
},
{
"number": "37",
"name": "DHSDP",
"type": "bidirectional",
"description": "USB High Speed Data plus line, powered from VDDUTMI."
},
{
"number": "38",
"name": "DHSDM",
"type": "bidirectional",
"description": "USB High Speed Data minus line, powered from VDDUTMI."
},
{
"number": "39",
"name": "VBUS",
"type": "power_in",
"description": "USB bus power measurement port."
},
{
"number": "40",
"name": "VBG",
"type": "passive",
"description": "Listed in the 144-lead pinout; no function is given in the provided pages."
},
{
"number": "41",
"name": "VDDUTMI",
"type": "power_in",
"description": "Powers the UTMI+ interface; voltage range 3.0V to 3.6V, 3.3V nominal."
},
{
"number": "42",
"name": "DFSDP",
"type": "bidirectional",
"description": "USB Full Speed Data plus line, powered from VDDUTMI."
},
{
"number": "43",
"name": "DFSDM",
"type": "bidirectional",
"description": "USB Full Speed Data minus line, powered from VDDUTMI."
},
{
"number": "44",
"name": "GNDUTMI",
"type": "power_in",
"description": "Separate ground for the VDDUTMI supply."
},
{
"number": "45",
"name": "VDDCORE",
"type": "power_in",
"description": "Powers the core, embedded memories and peripherals; voltage range 1.62V to 1.95V."
},
{
"number": "46",
"name": "JTAGSEL",
"type": "input",
"description": "JTAG selection pin; no further function is given in the provided pages."
},
{
"number": "47",
"name": "NRSTB",
"type": "input",
"description": "Listed in the 144-lead pinout; no further function or limits are given in the provided pages."
},
{
"number": "48",
"name": "XIN32",
"type": "input",
"description": "Input of the 32.768 kHz slow clock crystal oscillator."
},
{
"number": "49",
"name": "XOUT32",
"type": "output",
"description": "Output of the 32.768 kHz slow clock crystal oscillator."
},
{
"number": "50",
"name": "SHDN",
"type": "input",
"description": "Listed in the 144-lead pinout; the provided pages give no pin-level function beyond the regulator Shutdown mode."
},
{
"number": "51",
"name": "TST",
"type": "input",
"description": "Test pin; the provided pages give no function or limits."
},
{
"number": "52",
"name": "VDDBU",
"type": "power_in",
"description": "Powers the slow clock oscillator and part of the System Controller; 1.62V to 3.6V, and must be supplied before or at the same time as VDDIO and VDDCORE."
},
{
"number": "53",
"name": "FWUP",
"type": "input",
"description": "Fast wake-up input feeding the Fast Startup sources; no electrical limits are given."
},
{
"number": "54",
"name": "GNDBU",
"type": "power_in",
"description": "Separate ground for the VDDBU supply."
},
{
"number": "55",
"name": "PC1",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "56",
"name": "VDDOUT",
"type": "power_out",
"description": "Output of the internal voltage regulator; the default output voltage is 1.80V."
},
{
"number": "57",
"name": "VDDIN",
"type": "power_in",
"description": "Powers the voltage regulator; no voltage range is given in the provided pages."
},
{
"number": "58",
"name": "GND",
"type": "power_in",
"description": "Ground common to the VDDCORE and VDDIO power supplies."
},
{
"number": "59",
"name": "PC2",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "60",
"name": "PC3",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "61",
"name": "VDDCORE",
"type": "power_in",
"description": "Powers the core, embedded memories and peripherals; voltage range 1.62V to 1.95V."
},
{
"number": "62",
"name": "VDDIO",
"type": "power_in",
"description": "Powers the peripheral I/O lines; voltage range 1.62V to 3.6V."
},
{
"number": "63",
"name": "PC5",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "64",
"name": "PC6",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "65",
"name": "PC7",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "66",
"name": "PC8",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "67",
"name": "PC9",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "68",
"name": "PB27",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "69",
"name": "NRST",
"type": "bidirectional",
"description": "Reset pin; the Reset Controller shapes a reset signal for external devices and allows a push-button connection."
},
{
"number": "70",
"name": "PA18",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "71",
"name": "PA19",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "72",
"name": "PA20",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "73",
"name": "VDDANA",
"type": "power_in",
"description": "Powers the ADC and DAC cells; voltage range 2.0V to 3.6V."
},
{
"number": "74",
"name": "GNDANA",
"type": "power_in",
"description": "Separate ground for the VDDANA supply."
},
{
"number": "75",
"name": "ADVREF",
"type": "input",
"description": "ADC and DAC reference voltage input."
},
{
"number": "76",
"name": "PB15",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "77",
"name": "PB16",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "78",
"name": "PA16",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "79",
"name": "PA24",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "80",
"name": "PA23",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "81",
"name": "PA22",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "82",
"name": "PA6",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "83",
"name": "PA4",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "84",
"name": "PA3",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "85",
"name": "PA2",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "86",
"name": "PB12",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "87",
"name": "PB13",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "88",
"name": "PB17",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "89",
"name": "PB18",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "90",
"name": "PB19",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "91",
"name": "PB20",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "92",
"name": "PB21",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "93",
"name": "PC11",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "94",
"name": "PC12",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "95",
"name": "PC13",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "96",
"name": "PC14",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "97",
"name": "PC15",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "98",
"name": "PC16",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "99",
"name": "PC17",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "100",
"name": "PC18",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "101",
"name": "PC19",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "102",
"name": "PC29",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "103",
"name": "PC30",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "104",
"name": "VDDCORE",
"type": "power_in",
"description": "Powers the core, embedded memories and peripherals; voltage range 1.62V to 1.95V."
},
{
"number": "105",
"name": "VDDIO",
"type": "power_in",
"description": "Powers the peripheral I/O lines; voltage range 1.62V to 3.6V."
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{
"number": "106",
"name": "GND",
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"description": "Ground common to the VDDCORE and VDDIO power supplies."
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{
"number": "107",
"name": "PA21",
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"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "108",
"name": "PA25",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
},
{
"number": "109",
"name": "PA26",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "110",
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"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "111",
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"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "112",
"name": "PA29",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "113",
"name": "PB0",
"type": "bidirectional",
"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "114",
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"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "115",
"name": "PB2",
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{
"number": "116",
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{
"number": "117",
"name": "PC10",
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"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "118",
"name": "PB3",
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"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "119",
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{
"number": "120",
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{
"number": "121",
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{
"number": "122",
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{
"number": "123",
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{
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{
"number": "126",
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{
"number": "127",
"name": "PB9",
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{
"number": "128",
"name": "PB10",
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"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "129",
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{
"number": "130",
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"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "131",
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"description": "General-purpose PIO line; no electrical limits or alternate function given in the provided pages."
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{
"number": "132",
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{
"number": "133",
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{
"number": "134",
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{
"number": "135",
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{
"number": "136",
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{
"number": "137",
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{
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{
"number": "139",
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{
"number": "140",
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{
"number": "141",
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{
"number": "142",
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{
"number": "143",
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{
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