ATTINY3217-MN

{
  "schema_version": 1,
  "type": "component",
  "slug": "attiny3217-mn",
  "title": "ATTINY3217-MN",
  "brief": "Microchip Tech Pre-ordered MCUs, HVQFN-24-EP(4x4). 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",
    "attiny3217-mn",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATTINY3217-MN",
    "manufacturer": "Microchip Tech",
    "package": "HVQFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/503d7cc4e3a4e94bca5775906d2726cf.pdf",
    "parts": {
      "symbol": "attiny3217-mn.kicad_sym",
      "footprint": "attiny3217-mn.kicad_mod",
      "model_3d": "attiny3217-mn-hero.glb",
      "model_3d_plain": "attiny3217-mn-etched.glb",
      "model_3d_step": "attiny3217-mn-etched.step",
      "model_3d_step_plain": "attiny3217-mn.step",
      "lbr": "attiny3217-mn.lbr"
    },
    "distributor_links": {
      "lcsc": "C1340454"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T07:22:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PA2",
        "type": "bidirectional",
        "description": "General-purpose I/O PA2 with EVOUT0, ADC AIN2, USART0 RxD (alternate position), SPI0 MISO, TWI0 SCL (alternate position) and LUT0-IN2 functions."
      },
      {
        "number": "2",
        "name": "PA3/EXTCLK",
        "type": "bidirectional",
        "description": "General-purpose I/O PA3 that also serves as the external clock input EXTCLK, with ADC AIN3, USART0 XCK (alternate), SPI0 SCK, TCA0 WO3 and TCB1 WO functions."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Input supply voltage; device operating range is 1.8 V to 5.5 V."
      },
      {
        "number": "5",
        "name": "PA4",
        "type": "bidirectional",
        "description": "General-purpose I/O PA4 with ADC0 AIN4, ADC1 AIN0, PTC X0/Y0, USART0 XDIR (alternate), SPI0 SS, TCA0 WO4, TCD0 WOA and LUT0-OUT functions."
      },
      {
        "number": "6",
        "name": "PA5",
        "type": "bidirectional",
        "description": "General-purpose I/O PA5 with external reference input VREFA, ADC AIN5/AIN1, PTC X1/Y1, AC0 OUT, TCA0 WO5, TCB0 WO and TCD0 WOB functions."
      },
      {
        "number": "7",
        "name": "PA6",
        "type": "bidirectional",
        "description": "General-purpose I/O PA6 with ADC AIN6/AIN2, PTC X2/Y2, analog comparator inputs/output, and DAC0 analog output OUT."
      },
      {
        "number": "8",
        "name": "PA7",
        "type": "bidirectional",
        "description": "General-purpose I/O PA7 with ADC AIN7/AIN3, PTC X3/Y3, analog comparator inputs and LUT1-OUT functions."
      },
      {
        "number": "9",
        "name": "PB7",
        "type": "bidirectional",
        "description": "General-purpose I/O PB7 with ADC1 AIN4 and analog comparator inputs AINN1/AINP3."
      },
      {
        "number": "10",
        "name": "PB6",
        "type": "bidirectional",
        "description": "General-purpose I/O PB6 with ADC1 AIN5 and analog comparator inputs AINP3/AINN1."
      },
      {
        "number": "11",
        "name": "PB5",
        "type": "bidirectional",
        "description": "General-purpose I/O PB5 with CLKOUT, ADC1 AIN8, PTC X12/Y12, analog comparator inputs and TCA0 WO2 (alternate) functions."
      },
      {
        "number": "12",
        "name": "PB4",
        "type": "bidirectional",
        "description": "General-purpose I/O PB4 with ADC1 AIN9, PTC X13/Y13, analog comparator inputs, TCA0 WO1 (alternate) and LUT0-OUT (alternate) functions."
      },
      {
        "number": "13",
        "name": "PB3",
        "type": "bidirectional",
        "description": "General-purpose I/O PB3 that also serves as 32.768 kHz crystal oscillator pin TOSC1, with AC OUT, USART0 RxD and TCA0 WO0 (alternate) functions."
      },
      {
        "number": "14",
        "name": "PB2/TOSC2",
        "type": "bidirectional",
        "description": "General-purpose I/O PB2 that also serves as 32.768 kHz crystal oscillator pin TOSC2, with EVOUT1, AC OUT, USART0 TxD and TCA0 WO2 functions."
      },
      {
        "number": "15",
        "name": "PB1",
        "type": "bidirectional",
        "description": "General-purpose I/O PB1 with ADC1 AIN10, PTC X4/Y4, analog comparator input, USART0 XCK, TWI0 SDA and TCA0 WO1 functions."
      },
      {
        "number": "16",
        "name": "PB0",
        "type": "bidirectional",
        "description": "General-purpose I/O PB0 with ADC1 AIN11, PTC X5/Y5, analog comparator inputs, USART0 XDIR, TWI0 SCL and TCA0 WO0 functions."
      },
      {
        "number": "17",
        "name": "PC0",
        "type": "bidirectional",
        "description": "General-purpose I/O PC0 with ADC1 AIN6, PTC X6/Y6, SPI0 SCK (alternate), TCB0 WO (alternate) and TCD0 WOC functions."
      },
      {
        "number": "18",
        "name": "PC1",
        "type": "bidirectional",
        "description": "General-purpose I/O PC1 with ADC1 AIN7, PTC X7/Y7, SPI0 MISO (alternate), TCD0 WOD and LUT1-OUT (alternate) functions."
      },
      {
        "number": "19",
        "name": "PC2",
        "type": "bidirectional",
        "description": "General-purpose I/O PC2 with EVOUT2, ADC1 AIN8, PTC X8/Y8 and SPI0 MOSI (alternate) functions."
      },
      {
        "number": "20",
        "name": "PC3",
        "type": "bidirectional",
        "description": "General-purpose I/O PC3 with ADC1 AIN9, PTC X9/Y9, SPI0 SS (alternate), TCA0 WO3 (alternate) and LUT1-IN0 functions."
      },
      {
        "number": "21",
        "name": "PC4",
        "type": "bidirectional",
        "description": "General-purpose I/O PC4 with ADC1 AIN10, PTC X10/Y10, TCA0 WO4 (alternate), TCB1 WO (alternate) and LUT1-IN1 functions."
      },
      {
        "number": "22",
        "name": "PC5",
        "type": "bidirectional",
        "description": "General-purpose I/O PC5 with ADC1 AIN11, PTC X11/Y11, TCA0 WO5 (alternate) and LUT1-IN2 functions."
      },
      {
        "number": "23",
        "name": "PA0/RESET/UPDI",
        "type": "bidirectional",
        "description": "General-purpose I/O PA0 that is also the RESET input and the single-pin UPDI programming/debug interface, selected by the RSTPINCFG fuse; also ADC0 AIN0 and LUT0-IN0."
      },
      {
        "number": "24",
        "name": "PA1",
        "type": "bidirectional",
        "description": "General-purpose I/O PA1 with ADC AIN1, USART0 TxD (alternate), SPI0 MOSI, TWI0 SDA (alternate) and LUT0-IN1 functions."
      },
      {
        "number": "25",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Exposed pad is not numbered in the datasheet; labeled 'EP' and typed power_in because the datasheet ; The multiplexing table text lost its column headers on some rows, so the ADC0/ADC1/AC channel assign"
        ],
        "pages_sent": 95,
        "cost_usd": 0.6088,
        "at": "2026-10-27T07:21:41"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/503d7cc4e3a4e94bca5775906d2726cf.pdf",
        "pages": 588,
        "sha256": "7a52087b237a6923",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "attiny3217-mn.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4,
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "89c02979ff0efa794bdb9898edd0e348a9c770e0038f606c78c45cf664a11db9",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "attiny3217-mn-etched.step",
        "role": "eda",
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        "units": "mm",
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        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4162c4ea0a1d0556cef7a8b8404bfba2c002f5dfdd75f8d22d887f88b93eab74",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "HVQFN-24-EP(4x4)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "25"
    },
    "appearance": {
      "contacts": {
        "quote": "including indium tin oxide (ITO) sensor grids. The PTC requires one pin per X-line and one pin per Y-line. In the Self Capacitance mode, the PTC requires only one pin (Y-line) for each touch sensor.",
        "page": 460,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "7a52087b237a69239f8422193c69debd36513924cd68294cc5eaa5fcc03a4b7c"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "7a52087b237a69239f8422193c69debd36513924cd68294cc5eaa5fcc03a4b7c",
      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "ATtiny3217-MN ordering code",
          "source_page": 565,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "N = -40°C to +105°C",
          "source_page": 565,
          "source": "datasheet"
        },
        {
          "name": "Max. CPU speed",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "ATtiny3217-MN ordering code",
          "source_page": 565,
          "source": "datasheet"
        },
        {
          "name": "TWI SCL low time, Standard mode",
          "symbol": "TLOW_Sm",
          "kind": "timing",
          "unit": "ns",
          "min": 4700,
          "typ": null,
          "max": null,
          "conditions": "specified minimum of the desired mode",
          "source_page": 366,
          "source": "datasheet"
        },
        {
          "name": "TWI SCL low time, Fast mode",
          "symbol": "TLOW_Fm",
          "kind": "timing",
          "unit": "ns",
          "min": 1300,
          "typ": null,
          "max": null,
          "conditions": "specified minimum of the desired mode",
          "source_page": 366,
          "source": "datasheet"
        },
        {
          "name": "TWI SCL low time, Fast mode Plus",
          "symbol": "TLOW_Fm+",
          "kind": "timing",
          "unit": "ns",
          "min": 500,
          "typ": null,
          "max": null,
          "conditions": "specified minimum of the desired mode",
          "source_page": 366,
          "source": "datasheet"
        },
        {
          "name": "Flash write/erase endurance",
          "symbol": "",
          "kind": "electrical",
          "unit": "cycles",
          "min": null,
          "typ": 10000,
          "max": null,
          "conditions": "Write/erase endurance",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "EEPROM write/erase endurance",
          "symbol": "",
          "kind": "electrical",
          "unit": "cycles",
          "min": null,
          "typ": 100000,
          "max": null,
          "conditions": "Write/erase endurance",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Data retention",
          "symbol": "",
          "kind": "electrical",
          "unit": "years",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "at 55°C",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "readme",
    "breadcrumbs",
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  "discovery_triggers": [
    "attiny3217-mn"
  ],
  "discovery_pitch": "ATTINY3217-MN (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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  "visibility": {
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}