ATTINY20-SSURA87

{
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  "type": "component",
  "slug": "attiny20-ssura87",
  "title": "ATTINY20-SSURA87",
  "brief": "Microchip Tech Microcontrollers (MCU/MPU/SOC), 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": [
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    "embedded processors & controllers",
    "attiny20-ssura87",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "ATTINY20-SSURA87",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7e4e38e8f6ea03327dc401c7e893588b.pdf",
    "parts": {
      "symbol": "attiny20-ssura87.kicad_sym",
      "footprint": "attiny20-ssura87.kicad_mod",
      "model_3d": "attiny20-ssura87-hero.glb",
      "model_3d_plain": "attiny20-ssura87-etched.glb",
      "model_3d_step": "attiny20-ssura87-etched.step",
      "model_3d_step_plain": "attiny20-ssura87.step",
      "lbr": "attiny20-ssura87.lbr"
    },
    "distributor_links": {
      "lcsc": "C7471460"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T06:50:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage pin; the datasheet gives an operating voltage of 1.8 - 5.5V."
      },
      {
        "number": "2",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as CLKI/T0/TPICLK/PCINT8."
      },
      {
        "number": "3",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as OC1A/SDA/MOSI/TPIDATA/PCINT9."
      },
      {
        "number": "4",
        "name": "PB3/RESET",
        "type": "input",
        "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, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as INT0/MISO/OC1B/OC0A/CKOUT/PCINT10."
      },
      {
        "number": "6",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Port A bit 7, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC7/OC0B/ICP1/T1/SCL/SCK/PCINT7."
      },
      {
        "number": "7",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Port A bit 6, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC6/PCINT6/SS."
      },
      {
        "number": "8",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Port A bit 5, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC5/PCINT5."
      },
      {
        "number": "9",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Port A bit 4, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC4/PCINT4."
      },
      {
        "number": "10",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Port A bit 3, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC3/PCINT3."
      },
      {
        "number": "11",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Port A bit 2, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC2/AIN1/PCINT2."
      },
      {
        "number": "12",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Port A bit 1, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC1/AIN0/PCINT1."
      },
      {
        "number": "13",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Port A bit 0, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC0/PCINT0."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin."
      }
    ],
    "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 MPN ATTINY20-SSURA87 does not appear in the ordering table. The closest listed code is ATtiny20-"
        ],
        "pages_sent": 40,
        "cost_usd": 0.0525,
        "at": "2026-10-27T06:50:32"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/7e4e38e8f6ea03327dc401c7e893588b.pdf",
        "pages": 219,
        "sha256": "0e035d7d6b3af09f",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
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  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "SOIC-14",
      "Category": "Embedded Processors & Controllers",
      "Pins": "14"
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    "appearance": {
      "contacts": {
        "quote": "z H: NiPdAu lead finish z U: matte tin",
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        {
          "name": "Storage temperature",
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          "name": "Voltage on RESET with respect to Ground",
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          "name": "DC current per I/O pin",
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        {
          "name": "Output low voltage (except RESET)",
          "symbol": "VOL",
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          "typ": null,
          "max": 0.6,
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        {
          "name": "Output low voltage (except RESET)",
          "symbol": "VOL",
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          "max": 0.5,
          "conditions": "IOL = 5 mA, VCC = 3V",
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        {
          "name": "Input leakage current I/O pin, pin low",
          "symbol": "ILIL",
          "kind": "electrical",
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          "typ": null,
          "max": 1,
          "conditions": "Vcc = 5.5V, pin low (absolute value)",
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          "name": "Input leakage current I/O pin, pin high",
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          "kind": "electrical",
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          "max": 1,
          "conditions": "Vcc = 5.5V, pin high (absolute value)",
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        {
          "name": "Reset pull-up resistor",
          "symbol": "RRST",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 30,
          "typ": null,
          "max": 60,
          "conditions": "Vcc = 5.5V, input low",
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          "name": "Power supply current, active 1 MHz",
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          "max": 0.6,
          "conditions": "Active 1 MHz, VCC = 2V",
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          "source": "datasheet"
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        {
          "name": "Power supply current, active 4 MHz",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
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          "typ": 1.1,
          "max": 2,
          "conditions": "Active 4 MHz, VCC = 3V",
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        {
          "name": "Power supply current, active 8 MHz",
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          "name": "Power supply current, idle 1 MHz",
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          "max": 0.2,
          "conditions": "Idle 1 MHz, VCC = 2V",
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          "name": "Power supply current, idle 4 MHz",
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          "name": "Power supply current, idle 8 MHz",
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          "conditions": "Idle 8 MHz, VCC = 5V",
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          "name": "Power supply current, power-down, WDT enabled",
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          "min": null,
          "typ": 4.5,
          "max": 10,
          "conditions": "Power-down mode, WDT enabled, VCC = 3V",
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        {
          "name": "Power supply current, power-down, 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,
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        {
          "name": "Calibration accuracy of internal RC oscillator, factory calibration",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "Factory calibration 8.0 MHz, VCC 3V, 25°C",
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          "name": "Clock frequency",
          "symbol": "1/tCLCL",
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          "min": 0,
          "typ": null,
          "max": 4,
          "conditions": "VCC = 1.8 - 5.5V",
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        {
          "name": "Clock frequency",
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          "min": 0,
          "typ": null,
          "max": 8,
          "conditions": "VCC = 2.7 - 5.5V",
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        {
          "name": "Clock frequency",
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          "max": 12,
          "conditions": "VCC = 4.5 - 5.5V",
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          "max": 1.2,
          "conditions": "VCC = 2.7V, TA = 25°C",
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          "name": "Brown-out detection threshold",
          "symbol": "VBOT",
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          "unit": "V",
          "min": 1.7,
          "typ": 1.8,
          "max": 2,
          "conditions": "BODLEVEL[2:0] = 110",
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        {
          "name": "Brown-out detection threshold",
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          "kind": "electrical",
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          "min": 2.5,
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          "max": 2.9,
          "conditions": "BODLEVEL[2:0] = 101",
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          "name": "Brown-out detection threshold",
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        {
          "name": "Analog comparator input offset voltage",
          "symbol": "VAIO",
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          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "VCC = 5V, VIN = VCC / 2",
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          "kind": "electrical",
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          "typ": null,
          "max": 50,
          "conditions": "VCC = 5V, VIN = VCC / 2",
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          "source": "datasheet"
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          "name": "Analog comparator digital propagation delay",
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          "kind": "timing",
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          "typ": 1,
          "max": 2,
          "conditions": "VCC = 1.8V - 5.5V",
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          "source": "datasheet"
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        {
          "name": "Serial programming clock frequency",
          "symbol": "fCLCL",
          "kind": "timing",
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          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Serial programming",
          "source_page": 174,
          "source": "datasheet"
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      ]
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