AT91SAM7X256C-AUR

{
  "schema_version": 1,
  "type": "component",
  "slug": "at91sam7x256c-aur",
  "title": "AT91SAM7X256C-AUR",
  "brief": "Microchip Tech Pre-ordered MCUs, LQFP-100(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "at91sam7x256c-aur",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AT91SAM7X256C-AUR",
    "manufacturer": "Microchip Tech",
    "package": "LQFP-100(14x14)",
    "pin_count": 100,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/06f44c1af4100b5c308888b999ff87dd.pdf",
    "parts": {
      "symbol": "at91sam7x256c-aur.kicad_sym",
      "footprint": "at91sam7x256c-aur.kicad_mod",
      "model_3d": "at91sam7x256c-aur-hero.glb",
      "model_3d_plain": "at91sam7x256c-aur-etched.glb",
      "model_3d_step": "at91sam7x256c-aur-etched.step",
      "model_3d_step_plain": "at91sam7x256c-aur.step",
      "lbr": "at91sam7x256c-aur.lbr"
    },
    "distributor_links": {
      "lcsc": "C612635",
      "digikey": "AT91SAM7X256C-AURTR-ND",
      "mouser": "556-AT91SAM7X256CAUR"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T00:17:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "AT91SAM7X256C-AURTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "556-AT91SAM7X256CAUR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ADVREF",
        "type": "input",
        "description": "ADC reference voltage; conversions span 0V to ADVREF, and ADVREF should be connected to GND when the ADC is not used."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; all GND pins should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "3",
        "name": "AD4",
        "type": "input",
        "description": "ADC analog input channel AD4; should be connected to GND when the voltage regulator and ADC are not used."
      },
      {
        "number": "4",
        "name": "AD5",
        "type": "input",
        "description": "ADC analog input channel AD5; should be connected to GND when the voltage regulator and ADC are not used."
      },
      {
        "number": "5",
        "name": "AD6",
        "type": "input",
        "description": "ADC analog input channel AD6; should be connected to GND when the voltage regulator and ADC are not used."
      },
      {
        "number": "6",
        "name": "AD7",
        "type": "input",
        "description": "ADC analog input channel AD7; should be connected to GND when the voltage regulator and ADC are not used."
      },
      {
        "number": "7",
        "name": "VDDOUT",
        "type": "power_out",
        "description": "Output of the 1.8V voltage regulator, requiring 470 pF or 1 nF NPO plus 2.2 µF or 3.3 µF X7R decoupling to GND."
      },
      {
        "number": "8",
        "name": "VDDIN",
        "type": "power_in",
        "description": "Supply input for the voltage regulator and ADC, 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "9",
        "name": "PB27/AD0",
        "type": "bidirectional",
        "description": "PIO line PB27, also ADC analog input AD0."
      },
      {
        "number": "10",
        "name": "PB28/AD1",
        "type": "bidirectional",
        "description": "PIO line PB28, also ADC analog input AD1."
      },
      {
        "number": "11",
        "name": "PB29/AD2",
        "type": "bidirectional",
        "description": "PIO line PB29, also ADC analog input AD2."
      },
      {
        "number": "12",
        "name": "PB30/AD3",
        "type": "bidirectional",
        "description": "PIO line PB30, also ADC analog input AD3."
      },
      {
        "number": "13",
        "name": "PA8/PGMM0",
        "type": "bidirectional",
        "description": "PIO line PA8, also parallel programming mode pin PGMM0."
      },
      {
        "number": "14",
        "name": "PA9/PGMM1",
        "type": "bidirectional",
        "description": "PIO line PA9, also parallel programming mode pin PGMM1."
      },
      {
        "number": "15",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core logic supply, 1.65V to 1.95V (1.8V typical), required for the device and embedded Flash to operate."
      },
      {
        "number": "16",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; all GND pins should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "17",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O line supply, 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "18",
        "name": "PA10/PGMM2",
        "type": "bidirectional",
        "description": "PIO line PA10, also parallel programming mode pin PGMM2."
      },
      {
        "number": "19",
        "name": "PA11/PGMM3",
        "type": "bidirectional",
        "description": "PIO line PA11, also parallel programming mode pin PGMM3."
      },
      {
        "number": "20",
        "name": "PA12/PGMD0",
        "type": "bidirectional",
        "description": "PIO line PA12, also parallel programming data pin PGMD0."
      },
      {
        "number": "21",
        "name": "PA13/PGMD1",
        "type": "bidirectional",
        "description": "PIO line PA13, also parallel programming data pin PGMD1."
      },
      {
        "number": "22",
        "name": "PA14/PGMD2",
        "type": "bidirectional",
        "description": "PIO line PA14, also parallel programming data pin PGMD2."
      },
      {
        "number": "23",
        "name": "PA15/PGMD3",
        "type": "bidirectional",
        "description": "PIO line PA15, also parallel programming data pin PGMD3."
      },
      {
        "number": "24",
        "name": "PA16/PGMD4",
        "type": "bidirectional",
        "description": "PIO line PA16, also parallel programming data pin PGMD4."
      },
      {
        "number": "25",
        "name": "PA17/PGMD5",
        "type": "bidirectional",
        "description": "PIO line PA17, also parallel programming data pin PGMD5."
      },
      {
        "number": "26",
        "name": "PA18/PGMD6",
        "type": "bidirectional",
        "description": "PIO line PA18, also parallel programming data pin PGMD6."
      },
      {
        "number": "27",
        "name": "PB9",
        "type": "bidirectional",
        "description": "PIO line PB9, also used as EMDIO (Ethernet management data input/output)."
      },
      {
        "number": "28",
        "name": "PB8",
        "type": "bidirectional",
        "description": "PIO line PB8, also used as EMDC (Ethernet management data clock)."
      },
      {
        "number": "29",
        "name": "PB14",
        "type": "bidirectional",
        "description": "PIO line PB14, also used as ERX3 (Ethernet receive data) and SPI0_NPCS2."
      },
      {
        "number": "30",
        "name": "PB13",
        "type": "bidirectional",
        "description": "PIO line PB13, also used as ERX2 (Ethernet receive data) and SPI0_NPCS1."
      },
      {
        "number": "31",
        "name": "PB6",
        "type": "bidirectional",
        "description": "PIO line PB6, also used as ERX1 (Ethernet receive data)."
      },
      {
        "number": "32",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; all GND pins should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "33",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O line supply, 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "34",
        "name": "PB5",
        "type": "bidirectional",
        "description": "PIO line PB5, also used as ERX0 (Ethernet receive data)."
      },
      {
        "number": "35",
        "name": "PB15",
        "type": "bidirectional",
        "description": "PIO line PB15, also used as ERXDV/ECRSDV (Ethernet receive data valid or carrier sense)."
      },
      {
        "number": "36",
        "name": "PB17",
        "type": "bidirectional",
        "description": "PIO line PB17, also used as ERXCK (Ethernet receive clock) and SPI0_NPCS3."
      },
      {
        "number": "37",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core logic supply, 1.65V to 1.95V (1.8V typical), required for the device and embedded Flash to operate."
      },
      {
        "number": "38",
        "name": "PB7",
        "type": "bidirectional",
        "description": "PIO line PB7, also used as ERXER (Ethernet receive error)."
      },
      {
        "number": "39",
        "name": "PB12",
        "type": "bidirectional",
        "description": "PIO line PB12, also used as ETXER (Ethernet transmit error) and TCLK0."
      },
      {
        "number": "40",
        "name": "PB0",
        "type": "bidirectional",
        "description": "PIO line PB0, also used as ETXCK/EREFCK (Ethernet transmit clock or RMII reference clock) and PCK0."
      },
      {
        "number": "41",
        "name": "PB1",
        "type": "bidirectional",
        "description": "PIO line PB1, also used as ETXEN (Ethernet transmit enable)."
      },
      {
        "number": "42",
        "name": "PB2",
        "type": "bidirectional",
        "description": "PIO line PB2, also used as ETX0 (Ethernet transmit data)."
      },
      {
        "number": "43",
        "name": "PB3",
        "type": "bidirectional",
        "description": "PIO line PB3, also used as ETX1 (Ethernet transmit data)."
      },
      {
        "number": "44",
        "name": "PB10",
        "type": "bidirectional",
        "description": "PIO line PB10, also used as ETX2 (Ethernet transmit data) and SPI1_NPCS1."
      },
      {
        "number": "45",
        "name": "PB11",
        "type": "bidirectional",
        "description": "PIO line PB11, also used as ETX3 (Ethernet transmit data) and SPI1_NPCS2."
      },
      {
        "number": "46",
        "name": "PA19/PGMD7",
        "type": "bidirectional",
        "description": "PIO line PA19, also used as CANRX (CAN receive) and parallel programming data pin PGMD7."
      },
      {
        "number": "47",
        "name": "PA20/PGMD8",
        "type": "bidirectional",
        "description": "PIO line PA20, also used as CANTX (CAN transmit) and parallel programming data pin PGMD8."
      },
      {
        "number": "48",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O line supply, 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "49",
        "name": "PA21/PGMD9",
        "type": "bidirectional",
        "description": "PIO line PA21, also used as TF (SSC frame sync) and parallel programming data pin PGMD9."
      },
      {
        "number": "50",
        "name": "PA22/PGMD10",
        "type": "bidirectional",
        "description": "PIO line PA22, also used as TK (SSC clock) and parallel programming data pin PGMD10."
      },
      {
        "number": "51",
        "name": "TDI",
        "type": "input",
        "description": "JTAG/ICE test data input."
      },
      {
        "number": "52",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; all GND pins should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "53",
        "name": "PB16",
        "type": "bidirectional",
        "description": "PIO line PB16, also used as ECOL (Ethernet collision detect) and SPI1_NPCS3."
      },
      {
        "number": "54",
        "name": "PB4",
        "type": "bidirectional",
        "description": "PIO line PB4, also used as ECRS (Ethernet carrier sense)."
      },
      {
        "number": "55",
        "name": "PA23/PGMD11",
        "type": "bidirectional",
        "description": "PIO line PA23, also used as TD (SSC transmit data) and parallel programming data pin PGMD11."
      },
      {
        "number": "56",
        "name": "PA24/PGMD12",
        "type": "bidirectional",
        "description": "PIO line PA24, also used as RD (SSC receive data) and parallel programming data pin PGMD12."
      },
      {
        "number": "57",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Microcontroller reset, active low; an input/output that can be driven low by the reset controller."
      },
      {
        "number": "58",
        "name": "TST",
        "type": "input",
        "description": "Test mode select; must be tied low to ensure normal operating conditions."
      },
      {
        "number": "59",
        "name": "PA25/PGMD13",
        "type": "bidirectional",
        "description": "PIO line PA25, also used as RK (SSC receive clock) and parallel programming data pin PGMD13."
      },
      {
        "number": "60",
        "name": "PA26/PGMD14",
        "type": "bidirectional",
        "description": "PIO line PA26, also used as RF (SSC receive frame sync) and parallel programming data pin PGMD14."
      },
      {
        "number": "61",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O line supply, 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "62",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core logic supply, 1.65V to 1.95V (1.8V typical), required for the device and embedded Flash to operate."
      },
      {
        "number": "63",
        "name": "PB18",
        "type": "bidirectional",
        "description": "PIO line PB18, also used as EF100 (Ethernet force 100 Mbit/s) and ADTRG."
      },
      {
        "number": "64",
        "name": "PB19",
        "type": "bidirectional",
        "description": "PIO line PB19, also used as PWM0 and TCLK1."
      },
      {
        "number": "65",
        "name": "PB20",
        "type": "bidirectional",
        "description": "PIO line PB20, also used as PWM1 and PCK0."
      },
      {
        "number": "66",
        "name": "PB21",
        "type": "bidirectional",
        "description": "PIO line PB21, also used as PWM2 and PCK2."
      },
      {
        "number": "67",
        "name": "PB22",
        "type": "bidirectional",
        "description": "PIO line PB22, also used as PWM3 and PCK2."
      },
      {
        "number": "68",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; all GND pins should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "69",
        "name": "PB23",
        "type": "bidirectional",
        "description": "PIO line PB23, also used as TIOA0 and DCD1."
      },
      {
        "number": "70",
        "name": "PB24",
        "type": "bidirectional",
        "description": "PIO line PB24, also used as TIOB0 and DSR1."
      },
      {
        "number": "71",
        "name": "PB25",
        "type": "bidirectional",
        "description": "PIO line PB25, also used as TIOA1 and DTR1."
      },
      {
        "number": "72",
        "name": "PB26",
        "type": "bidirectional",
        "description": "PIO line PB26, also used as TIOB1 and RI1."
      },
      {
        "number": "73",
        "name": "PA27/PGMD15",
        "type": "bidirectional",
        "description": "PIO line PA27, also used as DRXD (Debug Unit receive data) and parallel programming data pin PGMD15."
      },
      {
        "number": "74",
        "name": "PA28",
        "type": "bidirectional",
        "description": "PIO line PA28, also used as DTXD (Debug Unit transmit data)."
      },
      {
        "number": "75",
        "name": "PA29",
        "type": "bidirectional",
        "description": "PIO line PA29, also used as FIQ (fast interrupt input)."
      },
      {
        "number": "76",
        "name": "TDO",
        "type": "output",
        "description": "JTAG/ICE test data output."
      },
      {
        "number": "77",
        "name": "JTAGSEL",
        "type": "input",
        "description": "JTAG selection; low selects EmbeddedICE mode, high selects IEEE 1149.1 JTAG boundary scan, and a chip reset is required after changing it."
      },
      {
        "number": "78",
        "name": "TMS",
        "type": "input",
        "description": "JTAG/ICE test mode select."
      },
      {
        "number": "79",
        "name": "TCK",
        "type": "input",
        "description": "JTAG/ICE test clock."
      },
      {
        "number": "80",
        "name": "PA30",
        "type": "bidirectional",
        "description": "PIO line PA30, also used as IRQ0 and PCK2."
      },
      {
        "number": "81",
        "name": "PA0/PGMEN0",
        "type": "bidirectional",
        "description": "PIO line PA0, also used as RXD0 and parallel programming enable pin PGMEN0."
      },
      {
        "number": "82",
        "name": "PA1/PGMEN1",
        "type": "bidirectional",
        "description": "PIO line PA1, also used as TXD0 and parallel programming enable pin PGMEN1."
      },
      {
        "number": "83",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; all GND pins should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "84",
        "name": "VDDIO",
        "type": "power_in",
        "description": "I/O line supply, 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "85",
        "name": "PA3",
        "type": "bidirectional",
        "description": "PIO line PA3, also used as RTS0 and SPI1_NPCS2."
      },
      {
        "number": "86",
        "name": "PA2",
        "type": "bidirectional",
        "description": "PIO line PA2, also used as SCK0 and SPI1_NPCS1."
      },
      {
        "number": "87",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core logic supply, 1.65V to 1.95V (1.8V typical), required for the device and embedded Flash to operate."
      },
      {
        "number": "88",
        "name": "PA4/PGMNCMD",
        "type": "bidirectional",
        "description": "PIO line PA4, also used as CTS0 and parallel programming command pin PGMNCMD."
      },
      {
        "number": "89",
        "name": "PA5/PGMRDY",
        "type": "bidirectional",
        "description": "PIO line PA5, also used as RXD1 and parallel programming ready pin PGMRDY."
      },
      {
        "number": "90",
        "name": "PA6/PGMNOE",
        "type": "bidirectional",
        "description": "PIO line PA6, also used as TXD1 and parallel programming output enable pin PGMNOE."
      },
      {
        "number": "91",
        "name": "PA7/PGMNVALID",
        "type": "bidirectional",
        "description": "PIO line PA7, also used as SCK1 and parallel programming valid pin PGMNVALID."
      },
      {
        "number": "92",
        "name": "ERASE",
        "type": "input",
        "description": "External hardware ERASE request; the only way to reset the security bit once it is set."
      },
      {
        "number": "93",
        "name": "DDM",
        "type": "bidirectional",
        "description": "USB device port D- data line."
      },
      {
        "number": "94",
        "name": "DDP",
        "type": "bidirectional",
        "description": "USB device port D+ data line."
      },
      {
        "number": "95",
        "name": "VDDFLASH",
        "type": "power_in",
        "description": "Supply for the USB transceivers and part of the Flash, 3.0V to 3.6V (3.3V nominal); required for Flash operation."
      },
      {
        "number": "96",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; all GND pins should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "97",
        "name": "XIN/PGMCK",
        "type": "input",
        "description": "Main oscillator input, 3 to 20 MHz, also used as parallel programming clock PGMCK; the main oscillator can be bypassed."
      },
      {
        "number": "98",
        "name": "XOUT",
        "type": "output",
        "description": "Main oscillator output, 3 to 20 MHz."
      },
      {
        "number": "99",
        "name": "PLLRC",
        "type": "input",
        "description": "PLL loop filter connection for the clock generator PLL, which outputs 80 to 200 MHz."
      },
      {
        "number": "100",
        "name": "VDDPLL",
        "type": "power_in",
        "description": "Supply for the oscillator and PLL; can be connected directly to VDDOUT."
      }
    ],
    "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 MPN AT91SAM7X256C-AUR is not listed verbatim in Table 40-1. The closest entry is AT91SAM7X256C-A; Table 4-1 prints only pin names, not pin types or descriptions. Types were assigned from the pin nam",
          "1/100 pins cited to the wrong page (name found elsewhere): ['98:XOUT@p9']"
        ],
        "pages_sent": 77,
        "cost_usd": 0.1178,
        "at": "2026-10-27T00:16:39"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/06f44c1af4100b5c308888b999ff87dd.pdf",
        "pages": 662,
        "sha256": "41e5028c31f5768b",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 100,
        "described": 100,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "at91sam7x256c-aur.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16,
          16,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "51720097260ffba41c3062f85f67623721102fa535901c47cb555a1f444feeb3",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at91sam7x256c-aur-etched.step",
        "role": "eda",
        "up": "Z",
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