CC2500RGPR

{
  "schema_version": 1,
  "type": "component",
  "slug": "cc2500rgpr",
  "title": "CC2500RGPR",
  "brief": "Texas Instruments RF Transceiver ICs, QFN-20-EP(4x4). 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",
    "cc2500rgpr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CC2500RGPR",
    "manufacturer": "Texas Instruments",
    "package": "QFN-20-EP(4x4)",
    "pin_count": 21,
    "category": "RF And Wireless",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/cc2500",
    "parts": {
      "symbol": "cc2500rgpr.kicad_sym",
      "footprint": "cc2500rgpr.kicad_mod",
      "model_3d": "cc2500rgpr-etched.glb",
      "model_3d_plain": "cc2500rgpr.glb",
      "model_3d_step": "cc2500rgpr-etched.step",
      "model_3d_step_plain": "cc2500rgpr.step",
      "lbr": "cc2500rgpr.lbr"
    },
    "distributor_links": {
      "lcsc": "C57494"
    },
    "pins": [
      {
        "number": "1",
        "name": "SCLK",
        "type": "input",
        "description": "SPI clock input, maximum frequency 10 MHz (9 MHz for single-access mode without delay between address and data bytes)."
      },
      {
        "number": "2",
        "name": "SO (GDO1)",
        "type": "tri_state",
        "description": "SPI serial data output (default high-impedance tri-state), configurable as general-purpose output when chip select is high."
      },
      {
        "number": "3",
        "name": "GDO2",
        "type": "output",
        "description": "Configurable digital output for FIFO status signals, clear channel indicator, sync word detection, or downsampled crystal oscillator clock outputs."
      },
      {
        "number": "4",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital power supply input, 1.8 to 3.6 V, requires external 100 nF decoupling capacitor."
      },
      {
        "number": "5",
        "name": "DCOUPL",
        "type": "power_out",
        "description": "Digital core voltage regulator output, 1.6 to 2.0 V; intended for CC2500 internal decoupling only and must not be used to supply external devices."
      },
      {
        "number": "6",
        "name": "GDO0 (ATEST)",
        "type": "bidirectional",
        "description": "Configurable digital input/output for general-purpose signals, FIFO status, serial TX data input, or on-chip analog temperature sensor output (enable with PTEST register)."
      },
      {
        "number": "7",
        "name": "CSn",
        "type": "input",
        "description": "SPI chip select input (active low); must be held low during all SPI header and data transfers."
      },
      {
        "number": "8",
        "name": "XOSC_Q1",
        "type": "bidirectional",
        "description": "Crystal oscillator pin 1 (26 to 27 MHz) or external reference clock input (full-swing digital or sine wave up to 1 V peak-peak)."
      },
      {
        "number": "9",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply input, 1.8 to 3.6 V; all supply pins must have the same voltage."
      },
      {
        "number": "10",
        "name": "XOSC_Q2",
        "type": "bidirectional",
        "description": "Crystal oscillator pin 2 (26 to 27 MHz), used with loading capacitors (typically 27 pF for 10 pF crystal load capacitance)."
      },
      {
        "number": "11",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply input, 1.8 to 3.6 V (duplicate pin for enhanced power distribution and lower inductance)."
      },
      {
        "number": "12",
        "name": "RF_P",
        "type": "bidirectional",
        "description": "Positive differential RF signal to LNA in receive mode, positive RF output from PA in transmit mode; differential load impedance 80 + j74 Ω."
      },
      {
        "number": "13",
        "name": "RF_N",
        "type": "bidirectional",
        "description": "Negative differential RF signal to LNA in receive mode, negative RF output from PA in transmit mode; differential load impedance 80 + j74 Ω."
      },
      {
        "number": "14",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply input, 1.8 to 3.6 V (duplicate pin for enhanced power distribution and lower inductance)."
      },
      {
        "number": "15",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply input, 1.8 to 3.6 V (duplicate pin for enhanced power distribution and lower inductance)."
      },
      {
        "number": "16",
        "name": "GND",
        "type": "power_in",
        "description": "Analog ground connection for RF and low-noise analog circuits, connected to main ground plane."
      },
      {
        "number": "17",
        "name": "RBIAS",
        "type": "bidirectional",
        "description": "External bias resistor connection (typically 56 kΩ to ground); sets internal reference current for LNA, mixer, and other analog front-end circuits."
      },
      {
        "number": "18",
        "name": "DGUARD",
        "type": "power_in",
        "description": "Isolated digital power supply for digital noise isolation guard ring, 1.8 to 3.6 V; must match other supply pins."
      },
      {
        "number": "19",
        "name": "GND",
        "type": "power_in",
        "description": "Isolated digital ground for digital noise isolation guard ring, connected to main ground plane."
      },
      {
        "number": "20",
        "name": "SI",
        "type": "input",
        "description": "SPI serial data input; carries address and data bytes for chip configuration and register access."
      },
      {
        "number": "21",
        "name": "Exposed Die Attach Pad (EP)",
        "type": "power_in",
        "description": "Thermal ground pad and primary ground connection for the chip; must be soldered to solid ground plane using multiple vias (minimum 5×0.01 in diameter) for thermal dissipation and low impedance return path."
      }
    ],
    "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: Pin 5 (DCOUPL): Listed as 'Power (Digital)' pin type in datasheet table, but functionally is a volta; Exposed die attach pad (pin 21): Not explicitly numbered in datasheet Table 13 but is documented in "
        ],
        "pages_sent": 99,
        "cost_usd": 0.905,
        "at": "2026-09-23T09:59:22"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/cc2500",
        "pages": 99,
        "sha256": "27364e9593879ec0",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cc2500rgpr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cc2500rgpr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5670e7aea22885ff57c3a0f79c84b3ddd1a040c79229f0c31737681bb7da80e5",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "QFN-20-EP(4x4)",
      "Category": "RF And Wireless",
      "Pins": "21"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cc2500rgpr"
  ],
  "discovery_pitch": "CC2500RGPR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cc2500rgpr.kicad_sym",
    "cc2500rgpr.kicad_mod",
    "cc2500rgpr.glb",
    "cc2500rgpr.step",
    "cc2500rgpr.lbr",
    "docs/hero.png",
    "docs/cc2500rgpr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T18:31:17.018Z"
}