AT91SAM7S256D-AU

{
  "schema_version": 1,
  "type": "component",
  "slug": "at91sam7s256d-au",
  "title": "AT91SAM7S256D-AU",
  "brief": "Microchip Tech ATMEL & AVR, LQFP-64(10x10). 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",
    "at91sam7s256d-au",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AT91SAM7S256D-AU",
    "manufacturer": "Microchip Tech",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "ATMEL & AVR",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f705a1851d4947489b5c0a966d3fc7ed.pdf",
    "parts": {
      "symbol": "at91sam7s256d-au.kicad_sym",
      "footprint": "at91sam7s256d-au.kicad_mod",
      "model_3d": "at91sam7s256d-au-hero.glb",
      "model_3d_plain": "at91sam7s256d-au.glb",
      "model_3d_step": "at91sam7s256d-au-etched.step",
      "model_3d_step_plain": "at91sam7s256d-au.step",
      "lbr": "at91sam7s256d-au.lbr"
    },
    "distributor_links": {
      "lcsc": "C38836",
      "digikey": "AT91SAM7S256D-AU-ND",
      "mouser": "556-AT91SAM7S256D-AU"
    },
    "distributor_check": {
      "checked_at": "2026-11-13T14:32:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "AT91SAM7S256D-AU-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "556-AT91SAM7S256D-AU",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ADVREF",
        "type": "power_in",
        "description": "ADC reference voltage; conversions span 0 V to ADVREF."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "3",
        "name": "AD4",
        "type": "input",
        "description": "ADC dedicated analog input channel 4; connect to GND if the voltage regulator and ADC are not used."
      },
      {
        "number": "4",
        "name": "AD5",
        "type": "input",
        "description": "ADC dedicated analog input channel 5; connect to GND if the voltage regulator and ADC are not used."
      },
      {
        "number": "5",
        "name": "AD6",
        "type": "input",
        "description": "ADC dedicated analog input channel 6; connect to GND if the voltage regulator and ADC are not used."
      },
      {
        "number": "6",
        "name": "AD7",
        "type": "input",
        "description": "ADC dedicated analog input channel 7; connect to GND if the voltage regulator and ADC are not used."
      },
      {
        "number": "7",
        "name": "VDDIN",
        "type": "power_in",
        "description": "Powers the voltage regulator and the ADC; voltage range 3.0 V to 3.6 V (3.3 V nominal)."
      },
      {
        "number": "8",
        "name": "VDDOUT",
        "type": "power_out",
        "description": "Output of the 1.8 V voltage regulator; needs 470 pF (or 1 nF) NPO and 2.2 µF (or 3.3 µF) X7R capacitors to GND."
      },
      {
        "number": "9",
        "name": "PA17/PGMD5/AD0",
        "type": "bidirectional",
        "description": "PIO line PA17 multiplexed with programming data PGMD5 and ADC input AD0 (pulled-up input at reset)."
      },
      {
        "number": "10",
        "name": "PA18/PGMD6/AD1",
        "type": "bidirectional",
        "description": "PIO line PA18 multiplexed with programming data PGMD6 and ADC input AD1 (pulled-up input at reset)."
      },
      {
        "number": "11",
        "name": "PA21/PGMD9",
        "type": "bidirectional",
        "description": "PIO line PA21 multiplexed with fast flash programming data PGMD9."
      },
      {
        "number": "12",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core logic supply, 1.65 V to 1.95 V (1.8 V typical); required for the device including embedded Flash to operate."
      },
      {
        "number": "13",
        "name": "PA19/PGMD7/AD2",
        "type": "bidirectional",
        "description": "PIO line PA19 multiplexed with programming data PGMD7 and ADC input AD2 (pulled-up input at reset)."
      },
      {
        "number": "14",
        "name": "PA22/PGMD10",
        "type": "bidirectional",
        "description": "PIO line PA22 multiplexed with fast flash programming data PGMD10."
      },
      {
        "number": "15",
        "name": "PA23/PGMD11",
        "type": "bidirectional",
        "description": "PIO line PA23 multiplexed with fast flash programming data PGMD11."
      },
      {
        "number": "16",
        "name": "PA20/PGMD8/AD3",
        "type": "bidirectional",
        "description": "PIO line PA20 multiplexed with programming data PGMD8 and ADC input AD3 (pulled-up input at reset)."
      },
      {
        "number": "17",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "18",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the I/O lines and USB transceivers; 3.0 V to 3.6 V (3.3 V nominal) or 1.65 V to 1.95 V (1.8 V nominal), and USB transceivers are unusable below 3.0 V."
      },
      {
        "number": "19",
        "name": "PA16/PGMD4",
        "type": "bidirectional",
        "description": "PIO line PA16 multiplexed with fast flash programming data PGMD4."
      },
      {
        "number": "20",
        "name": "PA15/PGMD3",
        "type": "bidirectional",
        "description": "PIO line PA15 multiplexed with fast flash programming data PGMD3."
      },
      {
        "number": "21",
        "name": "PA14/PGMD2",
        "type": "bidirectional",
        "description": "PIO line PA14 multiplexed with fast flash programming data PGMD2."
      },
      {
        "number": "22",
        "name": "PA13/PGMD1",
        "type": "bidirectional",
        "description": "PIO line PA13 multiplexed with fast flash programming data PGMD1."
      },
      {
        "number": "23",
        "name": "PA24/PGMD12",
        "type": "bidirectional",
        "description": "PIO line PA24 multiplexed with fast flash programming data PGMD12."
      },
      {
        "number": "24",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core logic supply, 1.65 V to 1.95 V (1.8 V typical); required for the device including embedded Flash to operate."
      },
      {
        "number": "25",
        "name": "PA25/PGMD13",
        "type": "bidirectional",
        "description": "PIO line PA25 multiplexed with fast flash programming data PGMD13."
      },
      {
        "number": "26",
        "name": "PA26/PGMD14",
        "type": "bidirectional",
        "description": "PIO line PA26 multiplexed with fast flash programming data PGMD14."
      },
      {
        "number": "27",
        "name": "PA12/PGMD0",
        "type": "bidirectional",
        "description": "PIO line PA12 multiplexed with fast flash programming data PGMD0."
      },
      {
        "number": "28",
        "name": "PA11/PGMM3",
        "type": "bidirectional",
        "description": "PIO line PA11 multiplexed with programming mode input PGMM3."
      },
      {
        "number": "29",
        "name": "PA10/PGMM2",
        "type": "bidirectional",
        "description": "PIO line PA10 multiplexed with programming mode input PGMM2."
      },
      {
        "number": "30",
        "name": "PA9/PGMM1",
        "type": "bidirectional",
        "description": "PIO line PA9 multiplexed with programming mode input PGMM1."
      },
      {
        "number": "31",
        "name": "PA8/PGMM0",
        "type": "bidirectional",
        "description": "PIO line PA8 multiplexed with programming mode input PGMM0."
      },
      {
        "number": "32",
        "name": "PA7/PGMNVALID",
        "type": "bidirectional",
        "description": "PIO line PA7 multiplexed with PGMNVALID, the programming data direction output (low active)."
      },
      {
        "number": "33",
        "name": "TDI",
        "type": "input",
        "description": "JTAG/ICE test data input."
      },
      {
        "number": "34",
        "name": "PA6/PGMNOE",
        "type": "bidirectional",
        "description": "PIO line PA6 multiplexed with PGMNOE, the programming read input (low active)."
      },
      {
        "number": "35",
        "name": "PA5/PGMRDY",
        "type": "bidirectional",
        "description": "PIO line PA5 multiplexed with PGMRDY, the programming ready output (high active)."
      },
      {
        "number": "36",
        "name": "PA4/PGMNCMD",
        "type": "bidirectional",
        "description": "PIO line PA4 multiplexed with PGMNCMD, the programming command input (low active)."
      },
      {
        "number": "37",
        "name": "PA27/PGMD15",
        "type": "bidirectional",
        "description": "PIO line PA27 multiplexed with fast flash programming data PGMD15."
      },
      {
        "number": "38",
        "name": "PA28",
        "type": "bidirectional",
        "description": "PIO line PA28 with no alternate function listed in Table 4-1."
      },
      {
        "number": "39",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Microcontroller reset, active low, configured as input/output."
      },
      {
        "number": "40",
        "name": "TST",
        "type": "input",
        "description": "Test mode select; must be tied low for normal operating conditions, other values are reserved for manufacturing test."
      },
      {
        "number": "41",
        "name": "PA29",
        "type": "bidirectional",
        "description": "PIO line PA29 with no alternate function listed in Table 4-1."
      },
      {
        "number": "42",
        "name": "PA30",
        "type": "bidirectional",
        "description": "PIO line PA30 with no alternate function listed in Table 4-1."
      },
      {
        "number": "43",
        "name": "PA3",
        "type": "bidirectional",
        "description": "PIO line PA3 with no alternate function listed in Table 4-1."
      },
      {
        "number": "44",
        "name": "PA2/PGMEN2",
        "type": "bidirectional",
        "description": "PIO line PA2 multiplexed with PGMEN2, a programming enabling input."
      },
      {
        "number": "45",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the I/O lines and USB transceivers; 3.0 V to 3.6 V (3.3 V nominal) or 1.65 V to 1.95 V (1.8 V nominal)."
      },
      {
        "number": "46",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "47",
        "name": "PA1/PGMEN1",
        "type": "bidirectional",
        "description": "PIO line PA1 multiplexed with PGMEN1, a programming enabling input."
      },
      {
        "number": "48",
        "name": "PA0/PGMEN0",
        "type": "bidirectional",
        "description": "PIO line PA0 multiplexed with PGMEN0, a programming enabling input."
      },
      {
        "number": "49",
        "name": "TDO",
        "type": "output",
        "description": "JTAG/ICE test data output."
      },
      {
        "number": "50",
        "name": "JTAGSEL",
        "type": "input",
        "description": "JTAG selection; low selects EmbeddedICE mode, high enables IEEE 1149.1 boundary scan, and a chip reset is required after changing it."
      },
      {
        "number": "51",
        "name": "TMS",
        "type": "input",
        "description": "JTAG/ICE test mode select input."
      },
      {
        "number": "52",
        "name": "PA31",
        "type": "bidirectional",
        "description": "PIO line PA31 with no alternate function listed in Table 4-1."
      },
      {
        "number": "53",
        "name": "TCK",
        "type": "input",
        "description": "JTAG/ICE test clock input."
      },
      {
        "number": "54",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core logic supply, 1.65 V to 1.95 V (1.8 V typical); required for the device including embedded Flash to operate."
      },
      {
        "number": "55",
        "name": "ERASE",
        "type": "input",
        "description": "External hardware ERASE request; the only way to reset the security bit, which erases the full memory plane and clears lock and GPNVM bits."
      },
      {
        "number": "56",
        "name": "DDM",
        "type": "bidirectional",
        "description": "USB device port data line connected to the on-chip USB 2.0 full-speed transceiver."
      },
      {
        "number": "57",
        "name": "DDP",
        "type": "bidirectional",
        "description": "USB device port data line connected to the on-chip USB 2.0 full-speed transceiver."
      },
      {
        "number": "58",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Powers the I/O lines and USB transceivers; 3.0 V to 3.6 V (3.3 V nominal) or 1.65 V to 1.95 V (1.8 V nominal)."
      },
      {
        "number": "59",
        "name": "VDDFLASH",
        "type": "power_in",
        "description": "Powers part of the Flash and is required for correct Flash operation; 3.0 V to 3.6 V (3.3 V nominal)."
      },
      {
        "number": "60",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; should be connected as shortly as possible to the system ground plane."
      },
      {
        "number": "61",
        "name": "XOUT",
        "type": "output",
        "description": "Main oscillator output to the crystal."
      },
      {
        "number": "62",
        "name": "XIN/PGMCK",
        "type": "input",
        "description": "Main oscillator input, also used as PGMCK, the programming clock input."
      },
      {
        "number": "63",
        "name": "PLLRC",
        "type": "passive",
        "description": "PLL connection shown in the block diagram; no electrical limits stated in the extracted text."
      },
      {
        "number": "64",
        "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-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: ADVREF and AD4-AD7 are analog pins; no KiCad analog class exists, so they were mapped to the nearest; DDM/DDP (USB data lines) are shown only in the block diagram; their electrical type and limits are n; XOUT, XIN and PLLRC are not described electrically in the extracted pages (oscillator and PLL sectio",
          "9/64 pins cited to the wrong page (name found elsewhere): ['33:TDI@p50', '39:NRST@p50', '40:TST@p51', '53:TCK@p50']"
        ],
        "pages_sent": 128,
        "cost_usd": 0.5685,
        "at": "2026-11-13T14:32:04"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f705a1851d4947489b5c0a966d3fc7ed.pdf",
        "pages": 775,
        "sha256": "c65dcff3a27c6c04",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "at91sam7s256d-au.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12,
          12,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at91sam7s256d-au-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12,
          12,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d246bf7fbb9d112eac47bb88f6b3406afc81485a197c74d9a40c41df47c48d04",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "LQFP 64",
      "source_page": 587,
      "D": {
        "nom_mm": 10,
        "range_mm": [
          null,
          null
        ]
      },
      "E1": {
        "nom_mm": 10,
        "range_mm": [
          null,
          null
        ]
      },
      "E": {
        "nom_mm": 12,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.6,
        "range_mm": [
          null,
          1.6
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "at91sam7s256d-au.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "LQFP-64(10x10)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "64"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c65dcff3a27c6c043cf5bd6b98cad8e60d3fd3aeec07decaaf37010bb0416a7a",
      "rows": [
        {
          "name": "Operating Temperature (Industrial)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 557,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -60,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 557,
          "source": "datasheet"
        },
        {
          "name": "Voltage on Input Pins with Respect to Ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 557,
          "source": "datasheet"
        },
        {
          "name": "Maximum Operating Voltage (VDDCORE and VDDPLL)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 557,
          "source": "datasheet"
        },
        {
          "name": "Total DC Output Current on all I/O lines",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "64-lead LQFP/QFN package",
          "source_page": 557,
          "source": "datasheet"
        },
        {
          "name": "DC Supply Core",
          "symbol": "VDDCORE",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.65,
          "typ": null,
          "max": 1.95,
          "conditions": "",
          "source_page": 558,
          "source": "datasheet"
        },
        {
          "name": "DC Supply PLL",
          "symbol": "VDDPLL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.65,
          "typ": null,
          "max": 1.95,
          "conditions": "",
          "source_page": 558,
          "source": "datasheet"
        },
        {
          "name": "DC Supply I/Os",
          "symbol": "VDDIO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 3.6,
          "conditions": "3.3V range",
          "source_page": 558,
          "source": "datasheet"
        },
        {
          "name": "DC Supply I/Os",
          "symbol": "VDDIO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.65,
          "typ": null,
          "max": 1.95,
          "conditions": "1.8V range",
          "source_page": 558,
          "source": "datasheet"
        },
        {
          "name": "DC Supply Flash",
          "symbol": "VDDFLASH",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 558,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage (1.8V regulator input)",
          "symbol": "VDDIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 559,
          "source": "datasheet"
        },
        {
          "name": "Supply Core Slope",
          "symbol": "TSLOPE",
          "kind": "timing",
          "unit": "V/ms",
          "min": 6,
          "typ": null,
          "max": null,
          "conditions": "During startup",
          "source_page": 559,
          "source": "datasheet"
        },
        {
          "name": "Input Low-level Voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.8,
          "conditions": "VVDDIO from 3.0V to 3.6V",
          "source_page": 558,
          "source": "datasheet"
        },
        {
          "name": "Input Low-level Voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.45,
          "conditions": "VVDDIO from 1.65V to 1.95V",
          "source_page": 558,
          "source": "datasheet"
        },
        {
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