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Ray Set visibility: public cc3183f 5d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "attiny20-ssu",
  "title": "ATTINY20-SSU",
  "brief": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), SOIC-14. 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",
    "single chip microcomputer-microcontroller",
    "attiny20-ssu",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATTINY20-SSU",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1395380aab474f4a583d5fed4e2c2d70.pdf",
    "parts": {
      "symbol": "attiny20-ssu.kicad_sym",
      "footprint": "attiny20-ssu.kicad_mod",
      "model_3d": "attiny20-ssu-hero.glb",
      "model_3d_plain": "attiny20-ssu-etched.glb",
      "model_3d_step": "attiny20-ssu-etched.step",
      "model_3d_step_plain": "attiny20-ssu.step",
      "lbr": "attiny20-ssu.lbr"
    },
    "distributor_links": {
      "lcsc": "C614835",
      "digikey": "ATTINY20-SSU-ND",
      "mouser": "556-ATTINY20-SSU"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T22:44:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATTINY20-SSU-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "556-ATTINY20-SSU",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage."
      },
      {
        "number": "2",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0 is a bi-directional I/O with selectable internal pull-up, with alternate functions CLKI, T0, TPICLK and PCINT8."
      },
      {
        "number": "3",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1 is a bi-directional I/O with selectable internal pull-up, with alternate functions OC1A, SDA, MOSI, TPIDATA and PCINT9."
      },
      {
        "number": "4",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Reset input: a low level longer than the minimum pulse length generates a reset, and the pin can be used as a weak I/O pin when the RSTDISBL fuse is programmed."
      },
      {
        "number": "5",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Port B bit 2 is a bi-directional I/O with selectable internal pull-up, with alternate functions INT0, MISO, OC0A, OC1B, CKOUT and PCINT10."
      },
      {
        "number": "6",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Port A bit 7 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC7, SCL, SCK, T1, ICP1, OC0B and PCINT7."
      },
      {
        "number": "7",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Port A bit 6 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC6, SS and PCINT6."
      },
      {
        "number": "8",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Port A bit 5 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC5 and PCINT5."
      },
      {
        "number": "9",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Port A bit 4 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC4 and PCINT4."
      },
      {
        "number": "10",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Port A bit 3 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC3 and PCINT3."
      },
      {
        "number": "11",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Port A bit 2 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC2, AIN1 and PCINT2."
      },
      {
        "number": "12",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Port A bit 1 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC1, AIN0 and PCINT1."
      },
      {
        "number": "13",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Port A bit 0 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC0 and PCINT0."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      }
    ],
    "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 SOIC pin numbers were read from the garbled Figure 1-1 text on page 2. Pin 1 is VCC and pin 14 i"
        ],
        "pages_sent": 40,
        "cost_usd": 0.0519,
        "at": "2026-10-30T22:44:27"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/1395380aab474f4a583d5fed4e2c2d70.pdf",
        "pages": 219,
        "sha256": "0bf57913e44d3a63",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "attiny20-ssu.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          8.7,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "attiny20-ssu-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          8.7,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "42396b48da26e78245101af8e6000249ed612b83d67715836282e373bfee9746",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "SOIC-14",
      "Category": "Single Chip Microcomputer/Microcontroller",
      "Pins": "14"
    },
    "appearance": {
      "contacts": {
        "quote": "z H: NiPdAu lead finish z U: matte tin",
        "page": 207,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "0bf57913e44d3a634be8238255c59b5ccbb80b57f88a84cac3dda63198081ad6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0bf57913e44d3a634be8238255c59b5ccbb80b57f88a84cac3dda63198081ad6",
      "rows": [
        {
          "name": "Operating voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "Industrial temperature range",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Industrial temperature range",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Maximum frequency",
          "symbol": "fCLK",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "VCC = 1.8 - 5.5V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum frequency",
          "symbol": "fCLK",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "VCC = 2.7 - 5.5V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum frequency",
          "symbol": "fCLK",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "VCC = 4.5 - 5.5V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Maximum operating voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Voltage on RESET with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 13,
          "conditions": "With respect to Ground",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "DC current per I/O pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "DC current VCC and GND pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "IOL = 10 mA, VCC = 5V",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "IOL = 5 mA, VCC = 3V",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IOL = 2mA, VCC = 1.8V",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.3,
          "typ": null,
          "max": null,
          "conditions": "IOH = -10 mA, VCC = 5V",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": null,
          "conditions": "IOH = -5 mA, VCC = 3V",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.4,
          "typ": null,
          "max": null,
          "conditions": "IOH = -2 mA, VCC = 1.8V",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current I/O pin low",
          "symbol": "ILIL",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Vcc = 5.5V, pin low (absolute value)",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current I/O pin high",
          "symbol": "ILIH",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Vcc = 5.5V, pin high (absolute value)",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Reset pull-up resistor",
          "symbol": "RRST",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 30,
          "typ": null,
          "max": 60,
          "conditions": "Vcc = 5.5V, input low",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "I/O pin pull-up resistor",
          "symbol": "RPU",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 20,
          "typ": null,
          "max": 50,
          "conditions": "Vcc = 5.5V, input low",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Analog comparator input leakage current",
          "symbol": "IACLK",
          "kind": "electrical",
          "unit": "nA",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "VCC = 5V, Vin = VCC/2",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Power supply current active 1 MHz",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.2,
          "max": 0.6,
          "conditions": "Active 1 MHz, VCC = 2V",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "Power supply current active 4 MHz",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.1,
          "max": 2,
          "conditions": "Active 4 MHz, VCC = 3V",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "Power supply current active 8 MHz",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.2,
          "max": 5,
          "conditions": "Active 8 MHz, VCC = 5V",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "Power supply current idle 1 MHz",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.03,
          "max": 0.2,
          "conditions": "Idle 1 MHz, VCC = 2V",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "Power supply current idle 4 MHz",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.2,
          "max": 0.5,
          "conditions": "Idle 4 MHz, VCC = 3V",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "Power supply current idle 8 MHz",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.8,
          "max": 1.5,
          "conditions": "Idle 8 MHz, VCC = 5V",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "Power-down mode current WDT enabled",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 4.5,
          "max": 10,
          "conditions": "Power-down mode, WDT enabled, VCC = 3V",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "Power-down mode current WDT disabled",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.15,
          "max": 2,
          "conditions": "Power-down mode, WDT disabled, VCC = 3V",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "Reset release threshold of power-on reset",
          "symbol": "VPOR",
          "kind": "electrical",
          "unit": "V",
          "min": 1.1,
          "typ": 1.4,
          "max": 1.6,
          "conditions": "Threshold where device is released from reset when voltage is rising",
          "source_page": 170,
          "source": "datasheet"
        },
        {
          "name": "Activation threshold of power-on reset",
          "symbol": "VPOA",
          "kind": "electrical",
          "unit": "V",
          "min": 0.6,
          "typ": 1.3,
          "max": 1.6,
          "conditions": "The Power-on Reset will not work unless the supply voltage has been below VPOT (falling)",
          "source_page": 170,
          "source": "datasheet"
        },
        {
          "name": "Brown-out threshold BODLEVEL 110",
          "symbol": "VBOT",
          "kind": "electrical",
          "unit": "V",
          "min": 1.7,
          "typ": 1.8,
          "max": 2,
          "conditions": "BODLEVEL[2:0] = 110",
          "source_page": 171,
          "source": "datasheet"
        },
        {
          "name": "Brown-out threshold BODLEVEL 101",
          "symbol": "VBOT",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": 2.7,
          "max": 2.9,
          "conditions": "BODLEVEL[2:0] = 101",
          "source_page": 171,
          "source": "datasheet"
        },
        {
          "name": "Brown-out threshold BODLEVEL 100",
          "symbol": "VBOT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.1,
          "typ": 4.3,
          "max": 4.5,
          "conditions": "BODLEVEL[2:0] = 100",
          "source_page": 171,
          "source": "datasheet"
        },
        {
          "name": "Analog comparator input offset voltage",
          "symbol": "VAIO",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "VCC = 5V, VIN = VCC / 2",
          "source_page": 171,
          "source": "datasheet"
        },
        {
          "name": "Analog comparator input leakage current",
          "symbol": "ILAC",
          "kind": "electrical",
          "unit": "nA",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "VCC = 5V, VIN = VCC / 2",
          "source_page": 171,
          "source": "datasheet"
        },
        {
          "name": "ADC clock frequency",
          "symbol": "",
          "kind": "electrical",
          "unit": "kHz",
          "min": 50,
          "typ": null,
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