main
Ray Set visibility: public 9a7a0b1 9h ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ltc4313ims8-2-pbf",
  "title": "LTC4313IMS8-2#PBF",
  "brief": "Analog Devices Signal Buffers, Repeaters, Splitters, MSOP-8. 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",
    "communication interface chip-uart-485-232",
    "ltc4313ims8-2#pbf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LTC4313IMS8-2#PBF",
    "manufacturer": "Analog Devices",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "Signal Buffers, Repeaters, Splitters",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/4313123f.pdf",
    "parts": {
      "symbol": "ltc4313ims8-2-pbf.kicad_sym",
      "footprint": "ltc4313ims8-2-pbf.kicad_mod",
      "model_3d": "ltc4313ims8-2-pbf-hero.glb",
      "model_3d_plain": "ltc4313ims8-2-pbf-etched.glb",
      "model_3d_step": "ltc4313ims8-2-pbf-etched.step",
      "model_3d_step_plain": "ltc4313ims8-2-pbf.step",
      "lbr": "ltc4313ims8-2-pbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C580858",
      "digikey": "505-LTC4313IMS8-2#PBF-ND",
      "mouser": "584-LTC4313IMS8-2PBF"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T12:39:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-LTC4313IMS8-2#PBF-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-LTC4313IMS8-2PBF",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ENABLE",
        "type": "input",
        "description": "Connection enable input; low isolates SDAIN/SCLIN from SDAOUT/SCLOUT, asserts READY low and disables rise time accelerators, high connects them after a stop bit or bus idle; connect to VCC if unused (10k to GND for staggered Hot Swap connectors)."
      },
      {
        "number": "2",
        "name": "SCLOUT",
        "type": "bidirectional",
        "description": "Serial Bus 2 clock input/output with external pull-up to a bus supply ≥ VCC for the LTC4313-2, connected to the SCL segment where stuck low recovery is desired; do not leave open."
      },
      {
        "number": "3",
        "name": "SCLIN",
        "type": "bidirectional",
        "description": "Serial Bus 1 clock input/output connected to the upstream SCL line with external pull-up to a bus supply ≥ VCC for the LTC4313-2; do not leave open."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground."
      },
      {
        "number": "5",
        "name": "READY",
        "type": "output",
        "description": "Open-drain N-channel connection ready status output that pulls low when input and output sides are disconnected, typically pulled up with 10k to the bus supply; leave open or tie to GND if unused (absolute max 6V, 50mA sink)."
      },
      {
        "number": "6",
        "name": "SDAIN",
        "type": "bidirectional",
        "description": "Serial Bus 1 data input/output connected to the upstream SDA line with external pull-up to a bus supply ≥ VCC for the LTC4313-2; do not leave open."
      },
      {
        "number": "7",
        "name": "SDAOUT",
        "type": "bidirectional",
        "description": "Serial Bus 2 data input/output with external pull-up to a bus supply ≥ VCC for the LTC4313-2, connected to the SDA segment where stuck low recovery is desired; do not leave open."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply input from 2.9V to 5.5V, bypass with at least 0.01µF to GND."
      }
    ],
    "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": [],
        "pages_sent": 6,
        "cost_usd": 0.0835,
        "at": "2026-10-31T12:39:30"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/4313123f.pdf",
        "pages": 20,
        "sha256": "0a65a78c3f78e5a1",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ltc4313ims8-2-pbf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ltc4313ims8-2-pbf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "22c59c14d6009287dede8817a16a28f285038de80f1873f609b43e77ff03060b",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "MS8",
      "source_page": 19,
      "e": {
        "nom_mm": 0.65,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.1,
        "range_mm": [
          null,
          1.1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "ltc4313ims8-2-pbf.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices",
      "Package": "MSOP-8",
      "Category": "Communication Interface Chip/UART/485/232",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "0a65a78c3f78e5a1c988545b85b4d5e1c7b2f0e950ad3b11cfb25de6b54d7481",
      "rows": [
        {
          "name": "Supply Voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ENABLE Input Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "SDAIN/SDAOUT/SCLIN/SCLOUT Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "READY Output Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "READY Output Sink Current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Ambient Temperature (LTC4313I)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "Soldering, 10 sec, MS package",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJMAX",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "MS8 package",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction to Ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 163,
          "max": null,
          "conditions": "MS8 package",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input Supply Voltage",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 2.9,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "2-Wire Bus Supply Voltage",
          "symbol": "VDD,BUS",
          "kind": "electrical",
          "unit": "V",
          "min": 2.9,
          "typ": null,
          "max": 5.5,
          "conditions": "LTC4313-1, LTC4313-2",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Supply Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": 6,
          "typ": 8.1,
          "max": 10,
          "conditions": "VENABLE = VCC = 5.5V, VSDAIN,SCLIN = 0V (Note 3)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Supply Current (Disabled)",
          "symbol": "ICC(DISABLED)",
          "kind": "electrical",
          "unit": "mA",
          "min": 2.5,
          "typ": 3.5,
          "max": 4.5,
          "conditions": "VENABLE = 0V, VCC = 5.5V, VSDAIN,SCLIN = 0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VCC UVLO Threshold",
          "symbol": "VTH_UVLO",
          "kind": "electrical",
          "unit": "V",
          "min": 2.55,
          "typ": 2.7,
          "max": 2.85,
          "conditions": "VCC Rising",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "UVLO Threshold Hysteresis Voltage",
          "symbol": "VCC_UVLO(HYST)",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Precharge Voltage",
          "symbol": "VPRE",
          "kind": "electrical",
          "unit": "V",
          "min": 0.8,
          "typ": 1,
          "max": 1.2,
          "conditions": "SDA, SCL Pins Open",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Buffer Offset Voltage",
          "symbol": "VOS(SAT)",
          "kind": "electrical",
          "unit": "mV",
          "min": 100,
          "typ": 190,
          "max": 280,
          "conditions": "IOL = 4mA, Driven VSDA,SCL = 50mV",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Buffer Offset Voltage",
          "symbol": "VOS(SAT)",
          "kind": "electrical",
          "unit": "mV",
          "min": 15,
          "typ": 60,
          "max": 120,
          "conditions": "IOL = 500µA, Driven VSDA,SCL = 50mV",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Buffer Offset Voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "mV",
          "min": 50,
          "typ": 120,
          "max": 180,
          "conditions": "IOL = 4mA, Driven VSDA,SCL = 200mV",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Buffer Offset Voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "mV",
          "min": 15,
          "typ": 60,
          "max": 115,
          "conditions": "IOL = 500µA, Driven VSDA,SCL = 200mV",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Buffer Input Logic Low Voltage",
          "symbol": "VIL, FALLING",
          "kind": "electrical",
          "unit": "V",
          "min": 0.3,
          "typ": 0.33,
          "max": 0.36,
          "conditions": "VCC = 2.9V, 3.3V, 5.5V; values are multiples of VCC (0.3•VCC, 0.33•VCC, 0.36•VCC)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIL Hysteresis Voltage",
          "symbol": "∆VIL(HYST)",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Leakage Current",
          "symbol": "ILEAK",
          "kind": "electrical",
          "unit": "µA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "SDA, SCL Pins = 5.5V, VCC = 5.5V, 0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Capacitance",
          "symbol": "CIN",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "SDA, SCL Pins (Note 4)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Minimum Slew Rate Requirement",
          "symbol": "dV/dt(RTA)",
          "kind": "electrical",
          "unit": "V/µs",
          "min": 0.1,
          "typ": 0.2,
          "max": 0.4,
          "conditions": "SDA, SCL Pins, VCC = 5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Rise Time Accelerator DC Threshold Voltage",
          "symbol": "VRTA(TH)",
          "kind": "electrical",
          "unit": "V",
          "min": 0.38,
          "typ": 0.41,
          "max": 0.44,
          "conditions": "VCC = 5V; values are multiples of VCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Rise Time Accelerator Pull-Up Current",
          "symbol": "IRTA",
          "kind": "electrical",
          "unit": "mA",
          "min": 1.5,
          "typ": 2.5,
          "max": 3.5,
          "conditions": "LTC4313-2, SDA, SCL Pins, VCC = 5V (Note 5)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ENABLE Threshold Voltage",
          "symbol": "VEN(TH)",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": 1.4,
          "max": 1.8,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ENABLE Leakage Current",
          "symbol": "ILEAK",
          "kind": "electrical",
          "unit": "µA",
          "min": -10,
          "typ": 0.1,
          "max": 10,
          "conditions": "VENABLE = 5.5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "READY Output Low Voltage",
          "symbol": "VREADY(OL)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IREADY = 3mA, VCC = 5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "READY Off Leakage Current",
          "symbol": "IREADY(OH)",
          "kind": "electrical",
          "unit": "µA",
          "min": -5,
          "typ": 0.1,
          "max": 5,
          "conditions": "VCC = VREADY = 5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Bus Stuck Low Timer",
          "symbol": "tTIMEOUT",
          "kind": "timing",
          "unit": "ms",
          "min": 35,
          "typ": 45,
          "max": 55,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "I2C Frequency Max",
          "symbol": "fSCL(MAX)",
          "kind": "timing",
          "unit": "kHz",
          "min": 400,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SCL, SDA Fall Delay",
          "symbol": "tPDHL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 130,
          "max": 250,
          "conditions": "VCC = VDD,BUS = 5V, CBUS = 100pF, RBUS = 10kΩ (Note 4)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SCL, SDA Fall Times",
          "symbol": "tf",
          "kind": "timing",
          "unit": "ns",
          "min": 20,
          "typ": null,
          "max": 300,
          "conditions": "VCC = VDD,BUS = 5V, CBUS = 100pF, RBUS = 10kΩ (Note 4)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Bus Idle Time",
          "symbol": "tIDLE",
          "kind": "timing",
          "unit": "µs",
          "min": 55,
          "typ": 95,
          "max": 175,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ltc4313ims8-2#pbf"
  ],
  "discovery_pitch": "LTC4313IMS8-2#PBF (Analog Devices) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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