CC2540F256RHAR

{
  "schema_version": 1,
  "type": "component",
  "slug": "cc2540f256rhar",
  "title": "CC2540F256RHAR",
  "brief": "Texas Instruments RF Transceiver ICs, WQFN-40-EP(6x6). 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",
    "rf and wireless",
    "cc2540f256rhar",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CC2540F256RHAR",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-40-EP(6x6)",
    "pin_count": 41,
    "category": "RF And Wireless",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/cc2540",
    "parts": {
      "symbol": "cc2540f256rhar.kicad_sym",
      "footprint": "cc2540f256rhar.kicad_mod",
      "model_3d": "cc2540f256rhar-etched.glb",
      "model_3d_plain": "cc2540f256rhar.glb",
      "model_3d_step": "cc2540f256rhar-etched.step",
      "model_3d_step_plain": "cc2540f256rhar.step",
      "lbr": "cc2540f256rhar.lbr"
    },
    "distributor_links": {
      "lcsc": "C22649"
    },
    "pins": [
      {
        "number": "1",
        "name": "DGND_USB",
        "type": "power_in",
        "description": "USB ground pin; connect to GND."
      },
      {
        "number": "2",
        "name": "USB_P",
        "type": "bidirectional",
        "description": "USB D+ differential data line for the full-speed USB interface."
      },
      {
        "number": "3",
        "name": "USB_N",
        "type": "bidirectional",
        "description": "USB D- differential data line for the full-speed USB interface."
      },
      {
        "number": "4",
        "name": "DVDD_USB",
        "type": "power_in",
        "description": "2 V to 3.6 V digital power-supply connection for the USB interface."
      },
      {
        "number": "5",
        "name": "P1_5",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 1.5."
      },
      {
        "number": "6",
        "name": "P1_4",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 1.4."
      },
      {
        "number": "7",
        "name": "P1_3",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 1.3."
      },
      {
        "number": "8",
        "name": "P1_2",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 1.2."
      },
      {
        "number": "9",
        "name": "P1_1",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 1.1, with 20-mA drive capability."
      },
      {
        "number": "10",
        "name": "DVDD2",
        "type": "power_in",
        "description": "2 V to 3.6 V digital power-supply connection."
      },
      {
        "number": "11",
        "name": "P1_0",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 1.0, with 20-mA drive capability."
      },
      {
        "number": "12",
        "name": "P0_7",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 0.7."
      },
      {
        "number": "13",
        "name": "P0_6",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 0.6."
      },
      {
        "number": "14",
        "name": "P0_5",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 0.5."
      },
      {
        "number": "15",
        "name": "P0_4",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 0.4."
      },
      {
        "number": "16",
        "name": "P0_3",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 0.3."
      },
      {
        "number": "17",
        "name": "P0_2",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 0.2."
      },
      {
        "number": "18",
        "name": "P0_1",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 0.1."
      },
      {
        "number": "19",
        "name": "P0_0",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 0.0."
      },
      {
        "number": "20",
        "name": "RESET_N",
        "type": "input",
        "description": "Active-low chip reset input; minimum low-pulse duration of 1 µs for a complete reset."
      },
      {
        "number": "21",
        "name": "AVDD5",
        "type": "power_in",
        "description": "2 V to 3.6 V analog power-supply connection; VDD reference for the ADC input voltage on this pin."
      },
      {
        "number": "22",
        "name": "XOSC_Q1",
        "type": "passive",
        "description": "32-MHz crystal oscillator pin 1, or external-clock input."
      },
      {
        "number": "23",
        "name": "XOSC_Q2",
        "type": "passive",
        "description": "32-MHz crystal oscillator pin 2."
      },
      {
        "number": "24",
        "name": "AVDD3",
        "type": "power_in",
        "description": "2 V to 3.6 V analog power-supply connection."
      },
      {
        "number": "25",
        "name": "RF_P",
        "type": "bidirectional",
        "description": "Positive RF input signal to the LNA during RX, and positive RF output signal from the PA during TX."
      },
      {
        "number": "26",
        "name": "RF_N",
        "type": "bidirectional",
        "description": "Negative RF input signal to the LNA during RX, and negative RF output signal from the PA during TX."
      },
      {
        "number": "27",
        "name": "AVDD2",
        "type": "power_in",
        "description": "2 V to 3.6 V analog power-supply connection."
      },
      {
        "number": "28",
        "name": "AVDD1",
        "type": "power_in",
        "description": "2 V to 3.6 V analog power-supply connection."
      },
      {
        "number": "29",
        "name": "AVDD4",
        "type": "power_in",
        "description": "2 V to 3.6 V analog power-supply connection."
      },
      {
        "number": "30",
        "name": "RBIAS",
        "type": "passive",
        "description": "External precision bias resistor connection used for reference current generation."
      },
      {
        "number": "31",
        "name": "AVDD6",
        "type": "power_in",
        "description": "2 V to 3.6 V analog power-supply connection."
      },
      {
        "number": "32",
        "name": "P2_4/XOSC32K_Q1",
        "type": "bidirectional",
        "description": "General-purpose digital I/O Port 2.4, alternatively the 32.768-kHz crystal oscillator pin 1 (analog I/O)."
      },
      {
        "number": "33",
        "name": "P2_3/XOSC32K_Q2",
        "type": "bidirectional",
        "description": "General-purpose digital I/O Port 2.3, alternatively the 32.768-kHz crystal oscillator pin 2 (analog I/O)."
      },
      {
        "number": "34",
        "name": "P2_2",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 2.2; also used as debug clock line in the two-wire debug interface."
      },
      {
        "number": "35",
        "name": "P2_1",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 2.1; also used as debug data line in the two-wire debug interface."
      },
      {
        "number": "36",
        "name": "P2_0",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 2.0."
      },
      {
        "number": "37",
        "name": "P1_7",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 1.7."
      },
      {
        "number": "38",
        "name": "P1_6",
        "type": "bidirectional",
        "description": "General-purpose digital I/O, Port 1.6."
      },
      {
        "number": "39",
        "name": "DVDD1",
        "type": "power_in",
        "description": "2 V to 3.6 V digital power-supply connection."
      },
      {
        "number": "40",
        "name": "DCOUPL",
        "type": "power_out",
        "description": "1.8-V digital power-supply decoupling node for the internal digital regulator; do not use to supply external circuits."
      },
      {
        "number": "41",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed die-attach/ground pad; must be soldered to a solid ground plane as it forms the chip's ground connection."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Exposed thermal ground pad (EP) with no pin number in datasheet: The package includes an exposed bot; Dual-function pins require application-specific configuration: P2_3/XOSC32K_Q2 (pin 33) and P2_4/XOS",
          "exposed pad 41 added from the footprint"
        ],
        "pages_sent": 36,
        "cost_usd": 0.3952,
        "at": "2026-09-23T10:06:18"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/cc2540",
        "pages": 36,
        "sha256": "2c8f3edd5c0452e5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 41,
        "described": 41,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cc2540f256rhar.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          6,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e5b4286c2329085d9ef7f90d5eb5bf41a435241ecc1baaf1383823b6d6a946ae",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cc2540f256rhar-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          6,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "0e54c9153be30cf9d0f94b1db123dba2eec87608a0c4ca14d4d315b9f8afd904",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "WQFN-40-EP(6x6)",
      "Category": "RF And Wireless",
      "Pins": "41"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cc2540f256rhar"
  ],
  "discovery_pitch": "CC2540F256RHAR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cc2540f256rhar.kicad_sym",
    "cc2540f256rhar.kicad_mod",
    "cc2540f256rhar.glb",
    "cc2540f256rhar.step",
    "cc2540f256rhar.lbr",
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    "docs/cc2540f256rhar-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T18:31:40.910Z"
}