ATTINY4313-SU

{
  "schema_version": 1,
  "type": "component",
  "slug": "attiny4313-su",
  "title": "ATTINY4313-SU",
  "brief": "Microchip Tech Global Sourcing Parts, SOIC-20-300mil. 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",
    "global sourcing parts",
    "attiny4313-su",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATTINY4313-SU",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-20-300mil",
    "pin_count": 20,
    "category": "Global Sourcing Parts",
    "subcategory": "Global Sourcing Parts",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588882158479937536",
    "parts": {
      "symbol": "attiny4313-su.kicad_sym",
      "footprint": "attiny4313-su.kicad_mod",
      "model_3d": "attiny4313-su-hero.glb",
      "model_3d_plain": "attiny4313-su-etched.glb",
      "model_3d_step": "attiny4313-su-etched.step",
      "model_3d_step_plain": "attiny4313-su.step",
      "lbr": "attiny4313-su.lbr"
    },
    "distributor_links": {
      "lcsc": "C72467",
      "digikey": "ATTINY4313-SU-ND",
      "mouser": "556-ATTINY4313-SU"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T09:14:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATTINY4313-SU-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "556-ATTINY4313-SU",
        "status": "found",
        "lifecycle": "Not Recommended for New Designs"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PA2 (RESET/dW/PCINT10)",
        "type": "bidirectional",
        "description": "Port A bit 2 is a bi-directional I/O pin with internal pull-up, tri-stated when reset is active; it doubles as the active-low RESET input unless the RSTDISBL fuse is programmed, and as debugWIRE (dW)."
      },
      {
        "number": "2",
        "name": "PD0 (RXD/PCINT11)",
        "type": "bidirectional",
        "description": "Port D bit 0 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the RXD (USART receive) alternate function."
      },
      {
        "number": "3",
        "name": "PD1 (TXD/PCINT12)",
        "type": "bidirectional",
        "description": "Port D bit 1 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the TXD (USART transmit) alternate function."
      },
      {
        "number": "4",
        "name": "PA1/XTAL2/PCINT9",
        "type": "bidirectional",
        "description": "Port A bit 1 is a bi-directional I/O pin with internal pull-up, tri-stated when reset is active, and it serves as XTAL2, the output from the inverting oscillator amplifier."
      },
      {
        "number": "5",
        "name": "PA0 (XTAL1/CLKI/PCINT8)",
        "type": "bidirectional",
        "description": "Port A bit 0 is a bi-directional I/O pin with internal pull-up, tri-stated when reset is active, and it serves as XTAL1, the input to the inverting oscillator amplifier and internal clock circuit."
      },
      {
        "number": "6",
        "name": "PD2 (INT0/XCK/CKOUT/PCINT13)",
        "type": "bidirectional",
        "description": "Port D bit 2 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the CKOUT, XCK and INT0 alternate functions shown in Figure 1-1."
      },
      {
        "number": "7",
        "name": "PD3 (INT1/PCINT14)",
        "type": "bidirectional",
        "description": "Port D bit 3 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the INT1 external interrupt alternate function."
      },
      {
        "number": "8",
        "name": "PD4/T0/PCINT15",
        "type": "bidirectional",
        "description": "Port D bit 4 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the T0 Timer/Counter0 clock input alternate function."
      },
      {
        "number": "9",
        "name": "PD5 (T1/OC0B/PCINT16)",
        "type": "bidirectional",
        "description": "Port D bit 5 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the T1 and OC0B alternate functions shown in Figure 1-1."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "11",
        "name": "PD6 (ICP1/PCINT17)",
        "type": "bidirectional",
        "description": "Port D bit 6 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the ICP1 input capture alternate function."
      },
      {
        "number": "12",
        "name": "PB0 (AIN0/PCINT0)",
        "type": "bidirectional",
        "description": "Port B bit 0 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the AIN0 analog comparator positive input alternate function."
      },
      {
        "number": "13",
        "name": "PB1 (AIN1/PCINT1)",
        "type": "bidirectional",
        "description": "Port B bit 1 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the AIN1 analog comparator negative input alternate function."
      },
      {
        "number": "14",
        "name": "PB2 (OC0A/PCINT2)",
        "type": "bidirectional",
        "description": "Port B bit 2 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the OC0A Timer/Counter0 output compare alternate function."
      },
      {
        "number": "15",
        "name": "PB3 (OC1A/PCINT3)",
        "type": "bidirectional",
        "description": "Port B bit 3 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the OC1A Timer/Counter1 output compare alternate function."
      },
      {
        "number": "16",
        "name": "PB4 (OC1B/PCINT4)",
        "type": "bidirectional",
        "description": "Port B bit 4 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the OC1B Timer/Counter1 output compare alternate function."
      },
      {
        "number": "17",
        "name": "PB5 (MOSI/DI/SDA/PCINT5)",
        "type": "bidirectional",
        "description": "Port B bit 5 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the MOSI/DI/SDA alternate functions used for SPI and USI operation."
      },
      {
        "number": "18",
        "name": "PB6 (MISO/DO/PCINT6)",
        "type": "bidirectional",
        "description": "Port B bit 6 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the MISO/DO alternate function."
      },
      {
        "number": "19",
        "name": "PB7 (USCK/SCL/SCK/PCINT7)",
        "type": "bidirectional",
        "description": "Port B bit 7 is a bi-directional I/O pin with internal pull-up resistors, tri-stated when reset is active, and it carries the USCK/SCL/SCK alternate functions."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage."
      }
    ],
    "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 pin-to-number mapping was reconstructed from the scrambled text extraction of Figure 1-1 (PDIP/S; Port pins that carry special functions are typed as bidirectional (KiCad class) because they are gen; The datasheet covers ATtiny2313A and ATtiny4313 together; the pinout is shared. Ordering information"
        ],
        "pages_sent": 60,
        "cost_usd": 0.2055,
        "at": "2026-10-20T09:14:27"
      },
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        "pages": 274,
        "sha256": "2c4b584c9b0bc5cb",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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        "units": "mm",
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        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "checked": "2026-10-20",
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      {
        "file": "attiny4313-su-etched.step",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "SOIC-20-300mil",
      "Category": "Global Sourcing Parts",
      "Pins": "20"
    },
    "appearance": {
      "contacts": {
        "quote": "– H: NiPdAu lead finish – U or N: matte tin",
        "page": 259,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "2c4b584c9b0bc5cbc42d746ab0e8b900602adad9d60458198fee2453ac8ee594"
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    "characteristics": {
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      "source": "datasheet",
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      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "VCC = 1.8V to 5.5V (DC characteristics header)",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature (industrial)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "TA = -40°C to 85°C (DC characteristics header)",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 198,
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        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
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        {
          "name": "Voltage on any pin except RESET with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "Upper limit printed as VCC+0.5V",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Voltage on RESET with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 13,
          "conditions": "",
          "source_page": 198,
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        },
        {
          "name": "Maximum operating voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "DC current per I/O pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "DC current VCC and GND pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage (except XTAL1 and RESET)",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "VCC = 1.8V - 2.4V; max printed as 0.2VCC",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage XTAL1 pin",
          "symbol": "VIL1",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "VCC = 1.8V - 5.5V; max printed as 0.1VCC",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage RESET pin",
          "symbol": "VIL2",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "VCC = 1.8V - 5.5V; max printed as 0.2VCC",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage RESET pin as I/O",
          "symbol": "VIL3",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "VCC = 1.8V - 2.4V; max printed as 0.2VCC",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage (except RESET pin)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "IOL = 20 mA, VCC = 5V",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage (except RESET pin)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.6,
          "conditions": "IOL = 10 mA, VCC = 3V",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage (except RESET pin)",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.2,
          "typ": null,
          "max": null,
          "conditions": "IOH = -20 mA, VCC = 5V",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage (except RESET pin)",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "IOH = -10 mA, VCC = 3V",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current I/O pin (low)",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VCC = 5.5V, pin low (absolute value)",
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          "source": "datasheet"
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        {
          "name": "Input leakage current I/O pin (high)",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VCC = 5.5V, pin high (absolute value)",
          "source_page": 198,
          "source": "datasheet"
        },
        {
          "name": "Reset pull-up resistor",
          "symbol": "RRST",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 30,
          "typ": null,
          "max": 60,
          "conditions": "",
          "source_page": 198,
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        },
        {
          "name": "Power supply current, active mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.2,
          "max": 0.55,
          "conditions": "Active 1MHz, VCC = 2V (PRR=0xFF, external clock, no I/O drive)",
          "source_page": 199,
          "source": "datasheet"
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        {
          "name": "Power supply current, active mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.3,
          "max": 2.5,
          "conditions": "Active 4MHz, VCC = 3V (PRR=0xFF, external clock, no I/O drive)",
          "source_page": 199,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, active mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.9,
          "max": 7,
          "conditions": "Active 8MHz, VCC = 5V (PRR=0xFF, external clock, no I/O drive)",
          "source_page": 199,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, idle mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.03,
          "max": 0.15,
          "conditions": "Idle 1MHz, VCC = 2V (PRR=0xFF, external clock, no I/O drive)",
          "source_page": 199,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, idle mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.25,
          "max": 0.6,
          "conditions": "Idle 4MHz, VCC = 3V (PRR=0xFF, external clock, no I/O drive)",
          "source_page": 199,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, idle mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": 2,
          "conditions": "Idle 8MHz, VCC = 5V (PRR=0xFF, external clock, no I/O drive)",
          "source_page": 199,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, power-down mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 4,
          "max": 10,
          "conditions": "Power-down, WDT enabled, VCC = 3V",
          "source_page": 199,
          "source": "datasheet"
        },
        {
          "name": "Power supply current, power-down mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Power-down, WDT disabled, VCC = 3V; typ printed as < 0.15 µA",
          "source_page": 199,
          "source": "datasheet"
        },
        {
          "name": "Clock frequency (external clock drive)",
          "symbol": "1/tCLCL",
          "kind": "electrical",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 4,
          "conditions": "VCC = 1.8 - 5.5V",
          "source_page": 201,
          "source": "datasheet"
        },
        {
          "name": "Clock frequency (external clock drive)",
          "symbol": "1/tCLCL",
          "kind": "electrical",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 10,
          "conditions": "VCC = 2.7 - 5.5V",
          "source_page": 201,
          "source": "datasheet"
        },
        {
          "name": "Clock frequency (external clock drive)",
          "symbol": "1/tCLCL",
          "kind": "electrical",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 20,
          "conditions": "VCC = 4.5 - 5.5V",
          "source_page": 201,
          "source": "datasheet"
        },
        {
          "name": "Minimum pulse width on RESET pin",
          "symbol": "tRST",
          "kind": "timing",
          "unit": "µs",
          "min": 2.5,
          "typ": null,
          "max": null,
          "conditions": "VCC = 1.8 - 5.5V (when RESET used as reset)",
          "source_page": 201,
          "source": "datasheet"
        },
        {
          "name": "Min pulse width on brown-out reset",
          "symbol": "tBOD",
          "kind": "timing",
          "unit": "µs",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 201,
          "source": "datasheet"
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        {
          "name": "Brown-out detection threshold (BODLEVEL 10)",
          "symbol": "VBOT",
          "kind": "electrical",
          "unit": "V",
          "min": 1.7,
          "typ": 1.8,
          "max": 2,
          "conditions": "BODLEVEL[1:0] = 10",
          "source_page": 202,
          "source": "datasheet"
        },
        {
          "name": "Brown-out detection threshold (BODLEVEL 01)",
          "symbol": "VBOT",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": 2.7,
          "max": 2.9,
          "conditions": "BODLEVEL[1:0] = 01",
          "source_page": 202,
          "source": "datasheet"
        },
        {
          "name": "Brown-out detection threshold (BODLEVEL 00)",
          "symbol": "VBOT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.1,
          "typ": 4.3,
          "max": 4.5,
          "conditions": "BODLEVEL[1:0] = 00",
          "source_page": 202,
          "source": "datasheet"
        },
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