ATTINY48-AU

{
  "schema_version": 1,
  "type": "component",
  "slug": "attiny48-au",
  "title": "ATTINY48-AU",
  "brief": "Microchip Tech ATMEL & AVR, TQFP-32(7x7). 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",
    "attiny48-au",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATTINY48-AU",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-32(7x7)",
    "pin_count": 32,
    "category": "Embedded Processors & Controllers",
    "subcategory": "ATMEL & AVR",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0b1e13ef146c4515bfcf87cfec99c1a3.pdf",
    "parts": {
      "symbol": "attiny48-au.kicad_sym",
      "footprint": "attiny48-au.kicad_mod",
      "model_3d": "attiny48-au-hero.glb",
      "model_3d_plain": "attiny48-au-etched.glb",
      "model_3d_step": "attiny48-au-etched.step",
      "model_3d_step_plain": "attiny48-au.step",
      "lbr": "attiny48-au.lbr"
    },
    "distributor_links": {
      "lcsc": "C111452",
      "digikey": "ATTINY48-AU-ND",
      "mouser": "556-ATTINY48-AU"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:19:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATTINY48-AU-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "556-ATTINY48-AU",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PD3/INT1/PCINT19",
        "type": "bidirectional",
        "description": "Port D bit 3 is a bidirectional I/O with internal pull-up and high sink capability, with alternate functions INT1 and PCINT19."
      },
      {
        "number": "2",
        "name": "PD4/T0/PCINT20",
        "type": "bidirectional",
        "description": "Port D bit 4 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, with alternate functions T0 and PCINT20."
      },
      {
        "number": "3",
        "name": "PA2/PCINT26",
        "type": "bidirectional",
        "description": "Port A bit 2 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, available only in 32-pin packages, with alternate function PCINT26."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "6",
        "name": "PA3/PCINT27",
        "type": "bidirectional",
        "description": "Port A bit 3 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, available only in 32-pin packages, with alternate function PCINT27."
      },
      {
        "number": "7",
        "name": "PB6/CLKI/PCINT6",
        "type": "bidirectional",
        "description": "Port B bit 6 is a bidirectional I/O with internal pull-up that can be used as input to the internal clock operating circuit depending on the clock selection fuse settings, with alternate function PCINT6."
      },
      {
        "number": "8",
        "name": "PB7/PCINT7",
        "type": "bidirectional",
        "description": "Port B bit 7 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, with alternate function PCINT7."
      },
      {
        "number": "9",
        "name": "PD5/T1/PCINT21",
        "type": "bidirectional",
        "description": "Port D bit 5 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, with alternate functions T1 and PCINT21."
      },
      {
        "number": "10",
        "name": "PD6/AIN0/PCINT22",
        "type": "bidirectional",
        "description": "Port D bit 6 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, with alternate functions AIN0 and PCINT22."
      },
      {
        "number": "11",
        "name": "PD7/AIN1/PCINT23",
        "type": "bidirectional",
        "description": "Port D bit 7 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, with alternate functions AIN1 and PCINT23."
      },
      {
        "number": "12",
        "name": "PB0/CLKO/ICP1/PCINT0",
        "type": "bidirectional",
        "description": "Port B bit 0 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, with alternate functions CLKO, ICP1 and PCINT0."
      },
      {
        "number": "13",
        "name": "PB1/OC1A/PCINT1",
        "type": "bidirectional",
        "description": "Port B bit 1 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, with alternate functions OC1A and PCINT1."
      },
      {
        "number": "14",
        "name": "PB2/SS/OC1B/PCINT2",
        "type": "bidirectional",
        "description": "Port B bit 2 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, with alternate functions SS, OC1B and PCINT2."
      },
      {
        "number": "15",
        "name": "PB3/MOSI/PCINT3",
        "type": "bidirectional",
        "description": "Port B bit 3 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, with alternate functions MOSI and PCINT3."
      },
      {
        "number": "16",
        "name": "PB4/MISO/PCINT4",
        "type": "bidirectional",
        "description": "Port B bit 4 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, with alternate functions MISO and PCINT4."
      },
      {
        "number": "17",
        "name": "PB5/SCK/PCINT5",
        "type": "bidirectional",
        "description": "Port B bit 5 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, with alternate functions SCK and PCINT5."
      },
      {
        "number": "18",
        "name": "AVCC",
        "type": "power_in",
        "description": "Supply voltage for the A/D converter and for PC7, PC[5:0] and PA[1:0], to be externally connected to VCC even if the ADC is not used, preferably through a low-pass filter when the ADC is used."
      },
      {
        "number": "19",
        "name": "PA0/ADC6/PCINT24",
        "type": "bidirectional",
        "description": "Port A bit 0 is a bidirectional I/O with internal pull-up, supplied from AVCC, available only in 32-pin packages, with alternate functions ADC6 and PCINT24."
      },
      {
        "number": "20",
        "name": "PC7/PCINT15",
        "type": "bidirectional",
        "description": "Port C bit 7 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, supplied from AVCC, with alternate function PCINT15."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "22",
        "name": "PA1/ADC7/PCINT25",
        "type": "bidirectional",
        "description": "Port A bit 1 is a bidirectional I/O with internal pull-up, supplied from AVCC, available only in 32-pin packages, with alternate functions ADC7 and PCINT25."
      },
      {
        "number": "23",
        "name": "PC0/ADC0/PCINT8",
        "type": "bidirectional",
        "description": "Port C bit 0 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, supplied from AVCC, with alternate functions ADC0 and PCINT8."
      },
      {
        "number": "24",
        "name": "PC1/ADC1/PCINT9",
        "type": "bidirectional",
        "description": "Port C bit 1 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, supplied from AVCC, with alternate functions ADC1 and PCINT9."
      },
      {
        "number": "25",
        "name": "PC2/ADC2/PCINT10",
        "type": "bidirectional",
        "description": "Port C bit 2 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, supplied from AVCC, with alternate functions ADC2 and PCINT10."
      },
      {
        "number": "26",
        "name": "PC3/ADC3/PCINT11",
        "type": "bidirectional",
        "description": "Port C bit 3 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, supplied from AVCC, with alternate functions ADC3 and PCINT11."
      },
      {
        "number": "27",
        "name": "PC4/ADC4/SDA/PCINT12",
        "type": "bidirectional",
        "description": "Port C bit 4 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, supplied from AVCC, with alternate functions ADC4, SDA and PCINT12."
      },
      {
        "number": "28",
        "name": "PC5/ADC5/SCL/PCINT13",
        "type": "bidirectional",
        "description": "Port C bit 5 is a bidirectional I/O with internal pull-up and symmetrical sink/source drive, supplied from AVCC, with alternate functions ADC5, SCL and PCINT13."
      },
      {
        "number": "29",
        "name": "PC6/RESET/PCINT14",
        "type": "bidirectional",
        "description": "Acts as reset input when the RSTDISBL fuse is unprogrammed, where a low level longer than the minimum pulse width generates a reset, and as an I/O pin when the fuse is programmed, with electrical characteristics differing from other Port C pins."
      },
      {
        "number": "30",
        "name": "PD0/PCINT16",
        "type": "bidirectional",
        "description": "Port D bit 0 is a bidirectional I/O with internal pull-up and high sink capability, with alternate function PCINT16."
      },
      {
        "number": "31",
        "name": "PD1/PCINT17",
        "type": "bidirectional",
        "description": "Port D bit 1 is a bidirectional I/O with internal pull-up and high sink capability, with alternate function PCINT17."
      },
      {
        "number": "32",
        "name": "PD2/INT0/PCINT18",
        "type": "bidirectional",
        "description": "Port D bit 2 is a bidirectional I/O with internal pull-up and high sink capability, with alternate functions INT0 and PCINT18."
      }
    ],
    "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 TQFP pin-to-name mapping was reconstructed from the scrambled figure text on page 2 using the st"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0361,
        "at": "2026-10-27T01:19:20"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/0b1e13ef146c4515bfcf87cfec99c1a3.pdf",
        "pages": 26,
        "sha256": "c7d2ab2d8f58a090",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 32,
        "described": 32,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "attiny48-au.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "53431be61c684e9d923915676a90cb08050c23ee3f834d76a77a3b19b41422f1",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "attiny48-au-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7ce7e74a2e629429a7f6ebcaac53f3a378b68a19cbc38abc64d3458e07d69d60",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TQFP-32(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "32"
    },
    "appearance": {
      "contacts": {
        "quote": "– H: NiPdAu lead finish – U: matte tin",
        "page": 14,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "c7d2ab2d8f58a090661e0c6ec5b6200b0e23956056016ac56202a1e195130127"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c7d2ab2d8f58a090661e0c6ec5b6200b0e23956056016ac56202a1e195130127",
      "rows": [
        {
          "name": "Operating voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "Operating voltage, Features list",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Industrial range",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Speed grade",
          "symbol": "",
          "kind": "timing",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 4,
          "conditions": "@ 1.8 – 5.5V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Speed grade",
          "symbol": "",
          "kind": "timing",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 8,
          "conditions": "@ 2.7 – 5.5V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Speed grade",
          "symbol": "",
          "kind": "timing",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 12,
          "conditions": "@ 4.5 – 5.5V",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "attiny48-au"
  ],
  "discovery_pitch": "ATTINY48-AU (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "attiny48-au.kicad_sym",
    "attiny48-au.kicad_mod",
    "attiny48-au.glb",
    "attiny48-au.step",
    "attiny48-au.lbr",
    "docs/hero.png",
    "docs/attiny48-au-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "attiny48-au-hero.glb",
    "attiny48-au-hero.overlay.json",
    "attiny48-au-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}