ATTINY841-SSUR

{
  "schema_version": 1,
  "type": "component",
  "slug": "attiny841-ssur",
  "title": "ATTINY841-SSUR",
  "brief": "Microchip Tech Pre-ordered MCUs, 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",
    "attiny841-ssur",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "ATTINY841-SSUR",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c1ef26dc733a991ed96417aa4b1d7f6f.pdf",
    "parts": {
      "symbol": "attiny841-ssur.kicad_sym",
      "footprint": "attiny841-ssur.kicad_mod",
      "model_3d": "attiny841-ssur-hero.glb",
      "model_3d_plain": "attiny841-ssur-etched.glb",
      "model_3d_step": "attiny841-ssur-etched.step",
      "model_3d_step_plain": "attiny841-ssur.step",
      "lbr": "attiny841-ssur.lbr"
    },
    "distributor_links": {
      "lcsc": "C614879"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:49:39Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 870 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage."
      },
      {
        "number": "2",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0 bidirectional I/O with selectable pull-up; alternate functions PCINT8, ADC11, XTAL1 and CLKI (external clock input)."
      },
      {
        "number": "3",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1 bidirectional I/O with selectable pull-up; alternate functions PCINT9, ADC10, XTAL2 and INT0 (external interrupt 0)."
      },
      {
        "number": "4",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Port B bit 3 / RESET: active-low reset input (a low pulse longer than the minimum pulse length resets the device, even if the clock is not running), or a weak I/O pin if the reset pin is disabled; also PCINT11, ADC9 and dW (debugWIRE)."
      },
      {
        "number": "5",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Port B bit 2 bidirectional I/O with selectable pull-up; alternate functions PCINT10, ADC8, CLKO (system clock output), TOCC7, ICP2 and RXD0."
      },
      {
        "number": "6",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Port A bit 7 bidirectional I/O with selectable pull-up and high sink capability; alternate functions PCINT7, ADC7, TOCC6, ICP1, TXD0 and SS."
      },
      {
        "number": "7",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Port A bit 6 bidirectional I/O with selectable pull-up; alternate functions PCINT6, ADC6, ACO1, TOCC5, XCK1, SDA (TWI data) and MOSI."
      },
      {
        "number": "8",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Port A bit 5 bidirectional I/O with selectable pull-up and high sink capability; alternate functions PCINT5, ADC5, ACO0, TOCC4, T2, TXD1 and MISO."
      },
      {
        "number": "9",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Port A bit 4 bidirectional I/O with selectable pull-up; alternate functions PCINT4, ADC4, AIN11, TOCC3, T1, RXD1, SCL (TWI clock) and SCK."
      },
      {
        "number": "10",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Port A bit 3 bidirectional I/O with selectable pull-up; alternate functions PCINT3, ADC3, AIN10, TOCC2, T0, XCK0 and SCK."
      },
      {
        "number": "11",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Port A bit 2 bidirectional I/O with selectable pull-up; alternate functions PCINT2, ADC2, AIN01, TOCC1, RXD0 and SS."
      },
      {
        "number": "12",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Port A bit 1 bidirectional I/O with selectable pull-up; alternate functions PCINT1, ADC1, AIN00, TOCC0, TXD0 and MOSI."
      },
      {
        "number": "13",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Port A bit 0 bidirectional I/O with selectable pull-up; alternate functions PCINT0, ADC0, AREF (external voltage reference) and MISO."
      },
      {
        "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-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 4 (PB3/RESET) is typed bidirectional because it can serve as a weak I/O when the reset function ; The datasheet figure is text-extracted; pin-to-name mapping was inferred from the column order (pins"
        ],
        "pages_sent": 65,
        "cost_usd": 0.4131,
        "at": "2026-10-22T22:49:13"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/c1ef26dc733a991ed96417aa4b1d7f6f.pdf",
        "pages": 366,
        "sha256": "204e8fd9bfe23322",
        "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"
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        "file": "attiny841-ssur.step",
        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
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        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "attiny841-ssur-etched.step",
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      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "SOIC-14",
      "Category": "Embedded Processors & Controllers",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
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      "rows": [
        {
          "name": "Operating temperature (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "Operating Temperature",
          "source_page": 246,
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        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "Storage Temperature",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Voltage on any pin except RESET",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "with respect to Ground; upper limit printed as VCC+0.5V",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Voltage on RESET",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 13,
          "conditions": "with respect to Ground",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Maximum operating voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
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        },
        {
          "name": "DC current per I/O pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
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          "max": 40,
          "conditions": "",
          "source_page": 246,
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        },
        {
          "name": "DC current VCC and GND pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.7,
          "typ": null,
          "max": 5.5,
          "conditions": "16 MHz speed grade, ordering information",
          "source_page": 354,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature (industrial)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Industrial",
          "source_page": 354,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, RESET pin as I/O",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "VCC = 5V, IOL = 2 mA",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, RESET pin as I/O",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VCC = 3V, IOL = 1 mA",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, RESET pin as I/O",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "VCC = 1.8V, IOL = 0.4mA",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, standard sink I/O",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "VCC = 5V, IOL = 10 mA",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, standard sink I/O",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VCC = 3V, IOL = 5 mA",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, standard sink I/O",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "VCC = 1.8V, IOL = 2mA",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, high sink I/O",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "VCC = 5V, IOL = 20 mA",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, high sink I/O",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VCC = 3V, IOL = 10 mA",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, high sink I/O",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "VCC = 1.8V, IOL = 4mA",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, extra high sink I/O",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "VCC = 5V, IOL = 20 mA",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, extra high sink I/O",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VCC = 1.8V, IOL = 8mA",
          "source_page": 246,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage, except RESET pin",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.3,
          "typ": null,
          "max": null,
          "conditions": "VCC = 5V, IOH = -10 mA",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage, except RESET pin",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": null,
          "conditions": "VCC = 3V, IOH = -5 mA",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage, except RESET pin",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.4,
          "typ": null,
          "max": null,
          "conditions": "VCC = 1.8V, IOH = -2 mA",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current, I/O pin (absolute value), pin low",
          "symbol": "ILIL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VCC = 5.5V, pin low",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current, I/O pin (absolute value), pin high",
          "symbol": "ILIH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VCC = 5.5V, pin high",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current, analog comparator",
          "symbol": "ILIAC",
          "kind": "electrical",
          "unit": "nA",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "VCC = 5V, VIN = VCC/2",
          "source_page": 247,
          "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": 247,
          "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": 247,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, active",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.23,
          "max": 0.6,
          "conditions": "Active 1 MHz, VCC = 2V",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, active",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.25,
          "max": 2,
          "conditions": "Active 4 MHz, VCC = 3V",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, active",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4.2,
          "max": 6,
          "conditions": "Active 8 MHz, VCC = 5V",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, idle",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.03,
          "max": 0.2,
          "conditions": "Idle 1 MHz, VCC = 2V",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, idle",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.22,
          "max": 0.6,
          "conditions": "Idle 4 MHz, VCC = 3V",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, idle",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.94,
          "max": 1.5,
          "conditions": "Idle 8 MHz, VCC = 5V",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, power-down, WDT enabled",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1.52,
          "max": 4,
          "conditions": "WDT enabled, VCC = 3V",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, power-down, WDT disabled",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.17,
          "max": 2,
          "conditions": "WDT disabled, VCC = 3V",
          "source_page": 247,
          "source": "datasheet"
        },
        {
          "name": "External clock frequency",
          "symbol": "1/tCLCL",
          "kind": "timing",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 4,
          "conditions": "VCC = 1.8 – 5.5V",
          "source_page": 249,
          "source": "datasheet"
        },
        {
          "name": "External clock frequency",
          "symbol": "1/tCLCL",
          "kind": "timing",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 8,
          "conditions": "VCC = 2.7 – 5.5V",
          "source_page": 249,
          "source": "datasheet"
        },
        {
          "name": "External clock frequency",
          "symbol": "1/tCLCL",
          "kind": "timing",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 12,
          "conditions": "VCC = 4.5 – 5.5V",
          "source_page": 249,
          "source": "datasheet"
        },
        {
          "name": "Internal bandgap voltage",
          "symbol": "VBG",
          "kind": "electrical",
          "unit": "V",
          "min": 1.056,
          "typ": 1.1,
          "max": 1.144,
          "conditions": "VCC = 3.3V, TA = 25°C",
          "source_page": 249,
          "source": "datasheet"
        },
        {
          "name": "Internal 1.1V reference voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 1.067,
          "typ": 1.1,
          "max": 1.133,
          "conditions": "VCC=1.7V to 5.5V at TA=-40°C to 85°C",
          "source_page": 249,
          "source": "datasheet"
        },
        {
          "name": "Internal 2.2V reference voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 2.134,
          "typ": 2.2,
          "max": 2.266,
          "conditions": "VCC=2.3V to 5.5V at TA=-40°C to 85°C",
          "source_page": 249,
          "source": "datasheet"
        },
        {
          "name": "Internal 4.096V reference voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 3.932,
          "typ": 4.096,
          "max": 4.26,
          "conditions": "VCC=4.2V to 5.5V at TA=-40°C to 85°C",
          "source_page": 249,
          "source": "datasheet"
        },
        {
          "name": "Release threshold of power-on reset",
          "symbol": "VPOR",
          "kind": "electrical",
          "unit": "V",
          "min": 1.1,
          "typ": 1.4,
          "max": 1.6,
          "conditions": "TA = -40 ... +85C; threshold where device is released from reset when voltage is rising",
          "source_page": 250,
          "source": "datasheet"
        },
        {
          "name": "Activation threshold of power-on reset",
          "symbol": "VPOA",
          "kind": "electrical",
          "unit": "V",
          "min": 0.6,
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