DAC8740HRGET

{
  "slug": "dac8740hrget",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Interface - Specialized, TQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface ics",
    "dac8740hrget",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "dac8740hrget.kicad_sym",
    "dac8740hrget.kicad_mod",
    "dac8740hrget.glb",
    "dac8740hrget.step",
    "dac8740hrget.lbr",
    "docs/hero.png",
    "docs/dac8740hrget-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "dac8740hrget-hero.glb",
    "dac8740hrget-hero.overlay.json",
    "dac8740hrget-etched.glb"
  ],
  "component": {
    "mpn": "DAC8740HRGET",
    "manufacturer": "Texas Instruments",
    "package": "TQFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Interface ICs",
    "subcategory": "Interface - Specialized",
    "datasheet": "https://www.ti.com/lit/ds/symlink/dac8740hrget.pdf",
    "parts": {
      "symbol": "dac8740hrget.kicad_sym",
      "footprint": "dac8740hrget.kicad_mod",
      "model_3d": "dac8740hrget-hero.glb",
      "model_3d_plain": "dac8740hrget-etched.glb",
      "model_3d_step": "dac8740hrget-etched.step",
      "model_3d_step_plain": "dac8740hrget.step",
      "lbr": "dac8740hrget.lbr"
    },
    "distributor_links": {
      "lcsc": "C2674179",
      "digikey": "296-48335-2-ND",
      "mouser": "595-DAC8740HRGET"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T22:53:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-48335-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-DAC8740HRGET",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "XEN",
        "type": "input",
        "description": "Logic low enables the crystal oscillator (external crystal required), logic high disables it and selects an external CMOS clock or the internal oscillator; no digital input pin should be left floating."
      },
      {
        "number": "2",
        "name": "CLKO",
        "type": "output",
        "description": "Clock output that can be configured when using the internal oscillator or an external crystal."
      },
      {
        "number": "3",
        "name": "CLK_CFG0",
        "type": "input",
        "description": "Configures the input/output clocking scheme together with XEN and CLK_CFG1; must not be left floating."
      },
      {
        "number": "4",
        "name": "CLK_CFG1",
        "type": "input",
        "description": "Configures the input/output clocking scheme together with XEN and CLK_CFG0; must not be left floating."
      },
      {
        "number": "5",
        "name": "RST",
        "type": "input",
        "description": "Logic low resets the device and places it in power-down mode; logic high returns it to normal operation; must not be left floating."
      },
      {
        "number": "6",
        "name": "CD",
        "type": "output",
        "description": "HART mode: carrier detect, logic high indicates a valid carrier is present. FF or PA mode: while not transmitting, high indicates a valid carrier; while transmitting, high indicates the jabber inhibitor has triggered."
      },
      {
        "number": "7",
        "name": "UART_IN",
        "type": "input",
        "description": "UART data input; must not be left floating."
      },
      {
        "number": "8",
        "name": "UART_RTS",
        "type": "bidirectional",
        "description": "HART mode: logic high enables the demodulator and disables the modulator, logic low does the reverse. FF or PA mode: reports transmit FIFO threshold information as programmed by the packet initiation code."
      },
      {
        "number": "9",
        "name": "DUPLEX",
        "type": "input",
        "description": "Logic high enables full-duplex (internal loop-back) test mode; must not be left floating."
      },
      {
        "number": "10",
        "name": "UART_OUT",
        "type": "output",
        "description": "UART data output."
      },
      {
        "number": "11",
        "name": "IOVDD",
        "type": "power_in",
        "description": "Interface supply for digital input and output circuitry; this voltage sets the logical thresholds for the digital interface."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Digital ground, the ground reference for all digital circuitry of the device."
      },
      {
        "number": "13",
        "name": "REG_CAP",
        "type": "output",
        "description": "Capacitor connection for the internal regulator."
      },
      {
        "number": "14",
        "name": "MOD_OUT",
        "type": "output",
        "description": "Modem output: FSK sinusoid in HART mode or Manchester coded data in FOUNDATION Fieldbus and PROFIBUS PA modes; requires 5 nF to 22 nF parallel capacitance in HART mode, or 0 pF to 100 pF in FF/PA mode."
      },
      {
        "number": "15",
        "name": "REF",
        "type": "bidirectional",
        "description": "Outputs the internal reference voltage when the internal reference is enabled; is the external 2.5-V reference input when the internal reference is disabled."
      },
      {
        "number": "16",
        "name": "MOD_IN",
        "type": "input",
        "description": "HART FSK input or FOUNDATION Fieldbus/PROFIBUS PA Manchester data input; do not connect this pin if an external filter is used."
      },
      {
        "number": "17",
        "name": "MOD_INF",
        "type": "input",
        "description": "With the internal band-pass filter, connect 680 pF in HART mode or 120 pF in FF/PA mode; with an external filter, connect that filter's output here."
      },
      {
        "number": "18",
        "name": "AVDD",
        "type": "power_in",
        "description": "Power supply for the analog circuitry of the device."
      },
      {
        "number": "19",
        "name": "GND",
        "type": "power_in",
        "description": "Analog ground, the ground reference for the power supply input."
      },
      {
        "number": "20",
        "name": "X2",
        "type": "input",
        "description": "Crystal stimulus connection for the crystal oscillator."
      },
      {
        "number": "21",
        "name": "X1",
        "type": "input",
        "description": "Crystal drive or external clock input."
      },
      {
        "number": "22",
        "name": "GND",
        "type": "power_in",
        "description": "Digital ground, the ground reference for all digital circuitry of the device."
      },
      {
        "number": "23",
        "name": "REF_EN",
        "type": "input",
        "description": "Logic high enables the internal 1.5-V reference; must not be left floating."
      },
      {
        "number": "24",
        "name": "BPF_EN",
        "type": "input",
        "description": "Logic high enables the internal band-pass filter; must not be left floating."
      },
      {
        "number": "25",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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 datasheet lists the package as 24-pin VQFN (RGE, 4 mm x 4 mm), not TQFN-24-EP as in the package "
        ],
        "pages_sent": 17,
        "cost_usd": 0.0366,
        "at": "2026-10-30T22:53:29"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/dac8740hrget.pdf",
        "pages": 49,
        "sha256": "ee898989d48c115d",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "dac8740hrget.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "dac8740hrget-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0.0,
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        "sha256": "fc5d3ccded9b2349eb0710c4a6e5bd2e915cf0a1e45c9ab938d9d41755280d79",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}