LMH1218RTWR

{
  "schema_version": 1,
  "type": "component",
  "slug": "lmh1218rtwr",
  "title": "LMH1218RTWR",
  "brief": "Texas Instruments Video Interface ICs, WQFN-24-EP(4x4). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "lmh1218rtwr"
  ],
  "component": {
    "mpn": "LMH1218RTWR",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Interface",
    "subcategory": "Video Interface ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lmh1218",
    "parts": {
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      "footprint": "lmh1218rtwr.kicad_mod",
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "MODE_SEL",
        "type": "input",
        "description": "4-level input that selects the device host interface. Tie to 1 kΩ→VDD to select SPI mode; other level codes select SMBus / address options (see Initialization Set Up)."
      },
      {
        "number": "2",
        "name": "IN_OUT_SEL_SPI_SS_N_ADR0",
        "type": "input",
        "description": "In SPI mode this pin is SS_N, the SPI slave select input (has an internal pullup, 2-Level). In SMBus mode it is IN_OUT_SEL and ADR0, providing input/output selection and SMBus address bit 0."
      },
      {
        "number": "3",
        "name": "EQ_SCL_SCK",
        "type": "input",
        "description": "In SPI mode this pin is SCK, the 2.5 V LVCMOS SPI serial clock input. In SMBus mode it is SCL, the SMBus clock, and it can also serve as an EQ strap."
      },
      {
        "number": "4",
        "name": "OUT_CTRL_MOSI_SDA",
        "type": "bidirectional",
        "description": "In SPI mode this pin is MOSI, the 2-Level SPI master-output/slave-input data receive line. In SMBus mode it is SDA (SMBus data) / OUT_CTRL strap."
      },
      {
        "number": "5",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved. No Connect."
      },
      {
        "number": "6",
        "name": "ENABLE",
        "type": "input",
        "description": "4-Level enable input. 1 kΩ→VDD or Float(Default): power-down until valid signal detected. 20 kΩ→GND: Reserved. 1 kΩ→GND: full power-down including signal detects and register reset on power-up."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "2.5 V ±5% supply input for the device core and I/O."
      },
      {
        "number": "8",
        "name": "IN1+",
        "type": "input",
        "description": "Noninverting analog differential input of channel 1. On-chip 100 Ω terminating resistor connects IN1+ to IN1-; inputs require 4.7 µF AC-coupling capacitors."
      },
      {
        "number": "9",
        "name": "IN1-",
        "type": "input",
        "description": "Inverting analog differential input of channel 1. On-chip 100 Ω terminating resistor connects IN1+ to IN1-; inputs require 4.7 µF AC-coupling capacitors."
      },
      {
        "number": "10",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground return."
      },
      {
        "number": "11",
        "name": "IN0+",
        "type": "input",
        "description": "Noninverting analog differential input of channel 0. On-chip 100 Ω terminating resistor connects IN0+ to IN0-; inputs require 4.7 µF AC-coupling capacitors."
      },
      {
        "number": "12",
        "name": "IN0-",
        "type": "input",
        "description": "Inverting analog differential input of channel 0. On-chip 100 Ω terminating resistor connects IN0+ to IN0-; inputs require 4.7 µF AC-coupling capacitors."
      },
      {
        "number": "13",
        "name": "LOS_INT_N",
        "type": "output",
        "description": "LVCMOS open-drain, 2-Level programmable interrupt output. Asserts on change in Loss-of-Signal state or violation of the internal eye-monitor threshold. Requires an external 4.7 kΩ pullup; 3.3 V LVCMOS tolerant."
      },
      {
        "number": "14",
        "name": "SMPTE_10GbE",
        "type": "unconnected",
        "description": "No Connect in SPI mode. In SMBus mode this pin functions as the SMPTE / 10GbE mode strap."
      },
      {
        "number": "15",
        "name": "VOD_MISO_ADR1",
        "type": "output",
        "description": "In SPI mode this pin is MISO, the 2.5 V LVCMOS 2-Level SPI master-input/slave-output data transmit line. In SMBus mode it serves as VOD strap and SMBus address bit 1."
      },
      {
        "number": "16",
        "name": "LOCK",
        "type": "output",
        "description": "CDR lock-detect status output, 2.5 V LVCMOS 2-Level. High indicates CDR is locked; low indicates unlocked."
      },
      {
        "number": "17",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved. No Connect."
      },
      {
        "number": "18",
        "name": "RESERVED",
        "type": "unconnected",
        "description": "Reserved. No Connect."
      },
      {
        "number": "19",
        "name": "OUT0-",
        "type": "output",
        "description": "Inverting 75 Ω CML-compatible differential output of channel 0. On-chip 75 Ω terminating resistor connects OUT0+ and OUT0- to VDD; outputs require 4.7 µF AC-coupling capacitors."
      },
      {
        "number": "20",
        "name": "OUT0+",
        "type": "output",
        "description": "Noninverting 75 Ω CML-compatible differential output of channel 0. On-chip 75 Ω terminating resistor connects OUT0+ and OUT0- to VDD; outputs require 4.7 µF AC-coupling capacitors."
      },
      {
        "number": "21",
        "name": "VDD",
        "type": "power_in",
        "description": "2.5 V ±5% supply input."
      },
      {
        "number": "22",
        "name": "OUT1-",
        "type": "output",
        "description": "Inverting analog differential output of channel 1. On-chip 100 Ω terminating resistor connects OUT1+ to OUT1-; outputs require 4.7 µF AC-coupling capacitors."
      },
      {
        "number": "23",
        "name": "OUT1+",
        "type": "output",
        "description": "Noninverting analog differential output of channel 1. On-chip 100 Ω terminating resistor connects OUT1+ to OUT1-; outputs require 4.7 µF AC-coupling capacitors."
      },
      {
        "number": "24",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground return."
      },
      {
        "number": "DAP",
        "name": "DAP",
        "type": "power_in",
        "description": "Exposed die-attach pad. Connect to GND with at least 5 vias (see package drawing) for electrical ground and thermal dissipation."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lmh1218",
        "pages": 58,
        "sha256": "8819557a1c9f9747",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "centre_offset_mm": 0.0,
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        "checked": "2026-10-07",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "WQFN-24-EP(4x4)",
      "Category": "Interface",
      "Pins": "25"
    }
  },
  "variants": [
    {
      "mpn": "LMH1218RTWR",
      "kind": "packaging"
    },
    {
      "mpn": "LMH1218RTWRRTWT",
      "kind": "packaging"
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  "discovery_pitch": "LMH1218RTWR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "updated_at": "2026-09-28T17:16:47.835Z"
}