AT91SAM7X256C-AU

{
  "slug": "at91sam7x256c-au",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech ATMEL & AVR, TQFP-100(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "at91sam7x256c-au",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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  "component": {
    "mpn": "AT91SAM7X256C-AU",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-100(14x14)",
    "pin_count": 100,
    "category": "Embedded Processors & Controllers",
    "subcategory": "ATMEL & AVR",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/8e5397ae3c2740919a8e75d8d64a1e29.pdf",
    "parts": {
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      "lbr": "at91sam7x256c-au.lbr"
    },
    "distributor_links": {
      "lcsc": "C36914"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T23:17:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 579 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ADVREF",
        "type": "power_in",
        "description": "ADC reference voltage; conversions span 0V to ADVREF, and it should be tied to GND if the ADC is unused."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; only shared GND pins are provided and should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "3",
        "name": "AD4",
        "type": "input",
        "description": "Dedicated ADC analog input channel 4; connect to GND if the ADC is not used."
      },
      {
        "number": "4",
        "name": "AD5",
        "type": "input",
        "description": "Dedicated ADC analog input channel 5; connect to GND if the ADC is not used."
      },
      {
        "number": "5",
        "name": "AD6",
        "type": "input",
        "description": "Dedicated ADC analog input channel 6; connect to GND if the ADC is not used."
      },
      {
        "number": "6",
        "name": "AD7",
        "type": "input",
        "description": "Dedicated ADC analog input channel 7; connect to GND if the ADC is not used."
      },
      {
        "number": "7",
        "name": "VDDOUT",
        "type": "power_out",
        "description": "Output of the 1.8V voltage regulator, needing 470 pF (or 1 nF) NPO plus 2.2 µF (or 3.3 µF) X7R decoupling to GND; leave unconnected if the regulator is unused."
      },
      {
        "number": "8",
        "name": "VDDIN",
        "type": "power_in",
        "description": "Powers the voltage regulator and the ADC, 3.0V to 3.6V (3.3V nominal); connect to GND if the regulator and ADC are not used."
      },
      {
        "number": "9",
        "name": "PB27/AD0",
        "type": "bidirectional",
        "description": "PIO line PB27 multiplexed with TIOA2/PWM0 and ADC analog input AD0."
      },
      {
        "number": "10",
        "name": "PB28/AD1",
        "type": "bidirectional",
        "description": "PIO line PB28 multiplexed with TIOB2/PWM1 and ADC analog input AD1."
      },
      {
        "number": "11",
        "name": "PB29/AD2",
        "type": "bidirectional",
        "description": "PIO line PB29 multiplexed with PCK1/PWM2 and ADC analog input AD2."
      },
      {
        "number": "12",
        "name": "PB30/AD3",
        "type": "bidirectional",
        "description": "PIO line PB30 multiplexed with PCK2/PWM3 and ADC analog input AD3."
      },
      {
        "number": "13",
        "name": "PA8/PGMM0",
        "type": "bidirectional",
        "description": "PIO line PA8 (RTS1/SPI0_NPCS2) that is also fast flash programming mode pin PGMM0."
      },
      {
        "number": "14",
        "name": "PA9/PGMM1",
        "type": "bidirectional",
        "description": "PIO line PA9 (CTS1/SPI0_NPCS3) that is also fast flash programming mode pin PGMM1."
      },
      {
        "number": "15",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Powers the device logic and embedded Flash, 1.65V to 1.95V (1.8V typical); can be connected to VDDOUT with decoupling."
      },
      {
        "number": "16",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; connect as shortly as possible to the system ground plane."
      },
      {
        "number": "17",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the I/O lines, 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "18",
        "name": "PA10/PGMM2",
        "type": "bidirectional",
        "description": "PIO line PA10 (TWD) that is also fast flash programming mode pin PGMM2."
      },
      {
        "number": "19",
        "name": "PA11/PGMM3",
        "type": "bidirectional",
        "description": "PIO line PA11 (TWCK) that is also fast flash programming mode pin PGMM3."
      },
      {
        "number": "20",
        "name": "PA12/PGMD0",
        "type": "bidirectional",
        "description": "PIO line PA12 (SPI0_NPCS0) that is also fast flash programming data bit PGMD0."
      },
      {
        "number": "21",
        "name": "PA13/PGMD1",
        "type": "bidirectional",
        "description": "PIO line PA13 (SPI0_NPCS1/PCK1) that is also fast flash programming data bit PGMD1."
      },
      {
        "number": "22",
        "name": "PA14/PGMD2",
        "type": "bidirectional",
        "description": "PIO line PA14 (SPI0_NPCS2/IRQ1) that is also fast flash programming data bit PGMD2."
      },
      {
        "number": "23",
        "name": "PA15/PGMD3",
        "type": "bidirectional",
        "description": "PIO line PA15 (SPI0_NPCS3/TCLK2) that is also fast flash programming data bit PGMD3."
      },
      {
        "number": "24",
        "name": "PA16/PGMD4",
        "type": "bidirectional",
        "description": "PIO line PA16 (SPI0_MISO) that is also fast flash programming data bit PGMD4."
      },
      {
        "number": "25",
        "name": "PA17/PGMD5",
        "type": "bidirectional",
        "description": "PIO line PA17 (SPI0_MOSI) that is also fast flash programming data bit PGMD5."
      },
      {
        "number": "26",
        "name": "PA18/PGMD6",
        "type": "bidirectional",
        "description": "PIO line PA18 (SPI0_SPCK) that is also fast flash programming data bit PGMD6."
      },
      {
        "number": "27",
        "name": "PB9",
        "type": "bidirectional",
        "description": "PIO line PB9 multiplexed with EMAC management data input/output EMDIO."
      },
      {
        "number": "28",
        "name": "PB8",
        "type": "bidirectional",
        "description": "PIO line PB8 multiplexed with EMAC management data clock EMDC."
      },
      {
        "number": "29",
        "name": "PB14",
        "type": "bidirectional",
        "description": "PIO line PB14 multiplexed with EMAC receive data ERX3 and SPI0_NPCS2."
      },
      {
        "number": "30",
        "name": "PB13",
        "type": "bidirectional",
        "description": "PIO line PB13 multiplexed with EMAC receive data ERX2 and SPI0_NPCS1."
      },
      {
        "number": "31",
        "name": "PB6",
        "type": "bidirectional",
        "description": "PIO line PB6 multiplexed with EMAC receive data ERX1."
      },
      {
        "number": "32",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; connect as shortly as possible to the system ground plane."
      },
      {
        "number": "33",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the I/O lines, 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "34",
        "name": "PB5",
        "type": "bidirectional",
        "description": "PIO line PB5 multiplexed with EMAC receive data ERX0."
      },
      {
        "number": "35",
        "name": "PB15",
        "type": "bidirectional",
        "description": "PIO line PB15 multiplexed with EMAC ERXDV (MII) / ECRSDV (RMII)."
      },
      {
        "number": "36",
        "name": "PB17",
        "type": "bidirectional",
        "description": "PIO line PB17 multiplexed with EMAC receive clock ERXCK and SPI0_NPCS3."
      },
      {
        "number": "37",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Powers the device logic and embedded Flash, 1.65V to 1.95V (1.8V typical)."
      },
      {
        "number": "38",
        "name": "PB7",
        "type": "bidirectional",
        "description": "PIO line PB7 multiplexed with EMAC receive error ERXER."
      },
      {
        "number": "39",
        "name": "PB12",
        "type": "bidirectional",
        "description": "PIO line PB12 multiplexed with EMAC transmit error ETXER and TCLK0."
      },
      {
        "number": "40",
        "name": "PB0",
        "type": "bidirectional",
        "description": "PIO line PB0 multiplexed with EMAC ETXCK/EREFCK and PCK0."
      },
      {
        "number": "41",
        "name": "PB1",
        "type": "bidirectional",
        "description": "PIO line PB1 multiplexed with EMAC transmit enable ETXEN."
      },
      {
        "number": "42",
        "name": "PB2",
        "type": "bidirectional",
        "description": "PIO line PB2 multiplexed with EMAC transmit data ETX0."
      },
      {
        "number": "43",
        "name": "PB3",
        "type": "bidirectional",
        "description": "PIO line PB3 multiplexed with EMAC transmit data ETX1."
      },
      {
        "number": "44",
        "name": "PB10",
        "type": "bidirectional",
        "description": "PIO line PB10 multiplexed with EMAC transmit data ETX2 and SPI1_NPCS1."
      },
      {
        "number": "45",
        "name": "PB11",
        "type": "bidirectional",
        "description": "PIO line PB11 multiplexed with EMAC transmit data ETX3 and SPI1_NPCS2."
      },
      {
        "number": "46",
        "name": "PA19/PGMD7",
        "type": "bidirectional",
        "description": "PIO line PA19 (CANRX) that is also fast flash programming data bit PGMD7."
      },
      {
        "number": "47",
        "name": "PA20/PGMD8",
        "type": "bidirectional",
        "description": "PIO line PA20 (CANTX) that is also fast flash programming data bit PGMD8."
      },
      {
        "number": "48",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the I/O lines, 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "49",
        "name": "PA21/PGMD9",
        "type": "bidirectional",
        "description": "PIO line PA21 (TF/SPI1_NPCS0) that is also fast flash programming data bit PGMD9."
      },
      {
        "number": "50",
        "name": "PA22/PGMD10",
        "type": "bidirectional",
        "description": "PIO line PA22 (TK/SPI1_SPCK) that is also fast flash programming data bit PGMD10."
      },
      {
        "number": "51",
        "name": "TDI",
        "type": "input",
        "description": "JTAG Test Data In input."
      },
      {
        "number": "52",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; connect as shortly as possible to the system ground plane."
      },
      {
        "number": "53",
        "name": "PB16",
        "type": "bidirectional",
        "description": "PIO line PB16 multiplexed with EMAC collision detect ECOL (MII only) and SPI1_NPCS3."
      },
      {
        "number": "54",
        "name": "PB4",
        "type": "bidirectional",
        "description": "PIO line PB4 multiplexed with EMAC carrier sense ECRS (MII only)."
      },
      {
        "number": "55",
        "name": "PA23/PGMD11",
        "type": "bidirectional",
        "description": "PIO line PA23 (TD/SPI1_MOSI) that is also fast flash programming data bit PGMD11."
      },
      {
        "number": "56",
        "name": "PA24/PGMD12",
        "type": "bidirectional",
        "description": "PIO line PA24 (RD/SPI1_MISO) that is also fast flash programming data bit PGMD12."
      },
      {
        "number": "57",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Active-low microcontroller reset, input/output."
      },
      {
        "number": "58",
        "name": "TST",
        "type": "input",
        "description": "Test mode select, active high; must be tied low for normal operation."
      },
      {
        "number": "59",
        "name": "PA25/PGMD13",
        "type": "bidirectional",
        "description": "PIO line PA25 (RK/SPI1_NPCS1) that is also fast flash programming data bit PGMD13."
      },
      {
        "number": "60",
        "name": "PA26/PGMD14",
        "type": "bidirectional",
        "description": "PIO line PA26 (RF/SPI1_NPCS2) that is also fast flash programming data bit PGMD14."
      },
      {
        "number": "61",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the I/O lines, 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "62",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Powers the device logic and embedded Flash, 1.65V to 1.95V (1.8V typical)."
      },
      {
        "number": "63",
        "name": "PB18",
        "type": "bidirectional",
        "description": "PIO line PB18 multiplexed with EMAC EF100 and ADC external trigger ADTRG."
      },
      {
        "number": "64",
        "name": "PB19",
        "type": "bidirectional",
        "description": "PIO line PB19 multiplexed with PWM0 and TCLK1."
      },
      {
        "number": "65",
        "name": "PB20",
        "type": "bidirectional",
        "description": "PIO line PB20 multiplexed with PWM1 and PCK0."
      },
      {
        "number": "66",
        "name": "PB21",
        "type": "bidirectional",
        "description": "PIO line PB21 multiplexed with PWM2 and PCK2."
      },
      {
        "number": "67",
        "name": "PB22",
        "type": "bidirectional",
        "description": "PIO line PB22 multiplexed with PWM3 and PCK2."
      },
      {
        "number": "68",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; connect as shortly as possible to the system ground plane."
      },
      {
        "number": "69",
        "name": "PB23",
        "type": "bidirectional",
        "description": "PIO line PB23 multiplexed with TIOA0 and DCD1."
      },
      {
        "number": "70",
        "name": "PB24",
        "type": "bidirectional",
        "description": "PIO line PB24 multiplexed with TIOB0 and DSR1."
      },
      {
        "number": "71",
        "name": "PB25",
        "type": "bidirectional",
        "description": "PIO line PB25 multiplexed with TIOA1 and DTR1."
      },
      {
        "number": "72",
        "name": "PB26",
        "type": "bidirectional",
        "description": "PIO line PB26 multiplexed with TIOB1 and RI1."
      },
      {
        "number": "73",
        "name": "PA27/PGMD15",
        "type": "bidirectional",
        "description": "PIO line PA27 (DRXD/PCK3) that is also fast flash programming data bit PGMD15."
      },
      {
        "number": "74",
        "name": "PA28",
        "type": "bidirectional",
        "description": "PIO line PA28 multiplexed with debug transmit data DTXD."
      },
      {
        "number": "75",
        "name": "PA29",
        "type": "bidirectional",
        "description": "PIO line PA29 multiplexed with FIQ and SPI1_NPCS3."
      },
      {
        "number": "76",
        "name": "TDO",
        "type": "output",
        "description": "JTAG Test Data Out output."
      },
      {
        "number": "77",
        "name": "JTAGSEL",
        "type": "input",
        "description": "JTAG selection: low selects EmbeddedICE mode, high enables IEEE 1149.1 boundary scan; a chip reset is required after changing it."
      },
      {
        "number": "78",
        "name": "TMS",
        "type": "input",
        "description": "JTAG Test Mode Select input."
      },
      {
        "number": "79",
        "name": "TCK",
        "type": "input",
        "description": "JTAG Test Clock input."
      },
      {
        "number": "80",
        "name": "PA30",
        "type": "bidirectional",
        "description": "PIO line PA30 multiplexed with IRQ0 and PCK2."
      },
      {
        "number": "81",
        "name": "PA0/PGMEN0",
        "type": "bidirectional",
        "description": "PIO line PA0 (RXD0) that is also fast flash programming enable pin PGMEN0."
      },
      {
        "number": "82",
        "name": "PA1/PGMEN1",
        "type": "bidirectional",
        "description": "PIO line PA1 (TXD0) that is also fast flash programming enable pin PGMEN1."
      },
      {
        "number": "83",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; connect as shortly as possible to the system ground plane."
      },
      {
        "number": "84",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the I/O lines, 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "85",
        "name": "PA3",
        "type": "bidirectional",
        "description": "PIO line PA3 multiplexed with RTS0 and SPI1_NPCS2."
      },
      {
        "number": "86",
        "name": "PA2",
        "type": "bidirectional",
        "description": "PIO line PA2 multiplexed with SCK0 and SPI1_NPCS1."
      },
      {
        "number": "87",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Powers the device logic and embedded Flash, 1.65V to 1.95V (1.8V typical)."
      },
      {
        "number": "88",
        "name": "PA4/PGMNCMD",
        "type": "bidirectional",
        "description": "PIO line PA4 (CTS0/SPI1_NPCS3) that is also fast flash programming pin PGMNCMD."
      },
      {
        "number": "89",
        "name": "PA5/PGMRDY",
        "type": "bidirectional",
        "description": "PIO line PA5 (RXD1) that is also fast flash programming pin PGMRDY."
      },
      {
        "number": "90",
        "name": "PA6/PGMNOE",
        "type": "bidirectional",
        "description": "PIO line PA6 (TXD1) that is also fast flash programming pin PGMNOE."
      },
      {
        "number": "91",
        "name": "PA7/PGMNVALID",
        "type": "bidirectional",
        "description": "PIO line PA7 (SCK1/SPI0_NPCS1) that is also fast flash programming pin PGMNVALID."
      },
      {
        "number": "92",
        "name": "ERASE",
        "type": "input",
        "description": "Hardware Flash erase request; the only way to reset the security bit, erasing the full memory plane and clearing lock and GPNVM bits."
      },
      {
        "number": "93",
        "name": "DDM",
        "type": "bidirectional",
        "description": "USB device port data minus (D-) line."
      },
      {
        "number": "94",
        "name": "DDP",
        "type": "bidirectional",
        "description": "USB device port data plus (D+) line."
      },
      {
        "number": "95",
        "name": "VDDFLASH",
        "type": "power_in",
        "description": "Powers the USB transceivers and part of the Flash, required for Flash operation; 3.0V to 3.6V (3.3V nominal)."
      },
      {
        "number": "96",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; connect as shortly as possible to the system ground plane."
      },
      {
        "number": "97",
        "name": "XIN/PGMCK",
        "type": "input",
        "description": "Main oscillator input (3 to 20 MHz, can be bypassed) that is also fast flash programming clock PGMCK."
      },
      {
        "number": "98",
        "name": "XOUT",
        "type": "output",
        "description": "Main oscillator output."
      },
      {
        "number": "99",
        "name": "PLLRC",
        "type": "passive",
        "description": "PLL external RC filter connection (PLL output ranges 80 to 200 MHz)."
      },
      {
        "number": "100",
        "name": "VDDPLL",
        "type": "power_in",
        "description": "Powers the oscillator and the 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-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Package hint says TQFP-100 (14x14); datasheet names the package 100-lead LQFP (the -AU suffix per or; DDM/DDP are listed only by name in the pinout; the USB D-/D+ description and bidirectional type come; PLLRC type (passive) and description inferred from the clock generator block diagram; signal table n",
          "24/100 pins cited to the wrong page (name found elsewhere): ['9:PB27/AD0@p48', '10:PB28/AD1@p48', '13:PA8/PGMM0@p49', '18:PA10/PGMM2@p49']"
        ],
        "pages_sent": 77,
        "cost_usd": 0.7349,
        "at": "2026-10-22T23:17:01"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/8e5397ae3c2740919a8e75d8d64a1e29.pdf",
        "pages": 662,
        "sha256": "50c7960c1f4db2dc",
        "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",
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