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CC2541F256RHAT
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Texas Instruments RF Transceiver ICs, VQFN-40-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+78@@ -0,0 +1,78 @@+# CC2541F256RHAT++**Texas Instruments** · RF Transceiver ICs · VQFN-40-EP(6x6)++CC2541F256RHAT from Texas Instruments, in a VQFN-40-EP(6x6). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | GND | power_in | Ground connection; connect to GND |+| 2 | SCL | bidirectional | I2C clock or general-purpose digital I/O pin; can be used as I2C clock or digital I/O, leave floating if not used, disable pull-up if grounded |+| 3 | SDA | bidirectional | I2C data or general-purpose digital I/O pin; can be used as I2C data or digital I/O, leave floating if not used, disable pull-up if grounded |+| 4 | NC | unconnected | Not connected; do not use |+| 5 | P1_5 | bidirectional | General-purpose digital I/O port 1.5 |+| 6 | P1_4 | bidirectional | General-purpose digital I/O port 1.4 |+| 7 | P1_3 | bidirectional | General-purpose digital I/O port 1.3 |+| 8 | P1_2 | bidirectional | General-purpose digital I/O port 1.2 |+| 9 | P1_1 | bidirectional | General-purpose digital I/O port 1.1 with 20-mA drive capability |+| 10 | DVDD2 | power_in | Digital power supply voltage in range 2 V to 3.6 V |+| 11 | P1_0 | bidirectional | General-purpose digital I/O port 1.0 with 20-mA drive capability |+| 12 | P0_7 | bidirectional | General-purpose digital I/O port 0.7 |+| 13 | P0_6 | bidirectional | General-purpose digital I/O port 0.6 |+| 14 | P0_5 | bidirectional | General-purpose digital I/O port 0.5 |+| 15 | P0_4 | bidirectional | General-purpose digital I/O port 0.4 |+| 16 | P0_3 | bidirectional | General-purpose digital I/O port 0.3 |+| 17 | P0_2 | bidirectional | General-purpose digital I/O port 0.2 |+| 18 | P0_1 | bidirectional | General-purpose digital I/O port 0.1 |+| 19 | P0_0 | bidirectional | General-purpose digital I/O port 0.0 |+| 20 | RESET_N | input | Active-low asynchronous reset input |+| 21 | AVDD5 | power_in | Analog power supply voltage in range 2 V to 3.6 V |+| 22 | XOSC_Q1 | bidirectional | 32-MHz crystal oscillator input/output pin 1 or external clock input |+| 23 | XOSC_Q2 | bidirectional | 32-MHz crystal oscillator input/output pin 2 |+| 24 | AVDD3 | power_in | Analog power supply voltage in range 2 V to 3.6 V |+| 25 | RF_P | bidirectional | Positive RF signal path for low-noise amplifier receive input or power amplifier transmit output |+| 26 | RF_N | bidirectional | Negative RF signal path for low-noise amplifier receive input or power amplifier transmit output |+| 27 | AVDD2 | power_in | Analog power supply voltage in range 2 V to 3.6 V |+| 28 | AVDD1 | power_in | Analog power supply voltage in range 2 V to 3.6 V |+| 29 | AVDD4 | power_in | Analog power supply voltage in range 2 V to 3.6 V |+| 30 | RBIAS | bidirectional | External precision bias resistor connection for internal reference current generation |+| 31 | AVDD6 | power_in | Analog power supply voltage in range 2 V to 3.6 V |+| 32 | P2_4/OSC32K_Q1 | bidirectional | Port 2.4 general-purpose digital I/O or 32.768-kHz crystal oscillator input/output pin |+| 33 | P2_3/OSC32K_Q2 | bidirectional | Port 2.3 general-purpose digital I/O or 32.768-kHz crystal oscillator input/output pin |+| 34 | P2_2/DC | bidirectional | Port 2.2 general-purpose digital I/O or debug clock pin |+| 35 | P2_1/DD | bidirectional | Port 2.1 general-purpose digital I/O or debug data pin |+| 36 | P2_0 | bidirectional | General-purpose digital I/O port 2.0 |+| 37 | P1_7 | bidirectional | General-purpose digital I/O port 1.7 |+| 38 | P1_6 | bidirectional | General-purpose digital I/O port 1.6 |+| 39 | DVDD1 | power_in | Digital power supply voltage in range 2 V to 3.6 V |+| 40 | DCOUPL | power_in | 1.8-V internal digital voltage regulator decoupling capacitor connection; do not use for external circuit supply |+| 41 | GND | power_in | Exposed thermal pad ground connection; must be soldered to solid ground plane for thermal and mechanical performance |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-40-EP(6x6) |+| Category | RF And Wireless |+| Pins | 41 |++## CAD (KiCad official)++- Symbol: `CC2541F256RHAT`+- Footprint: `Package_DFN_QFN:QFN-40-1EP_6x6mm_P0.5mm_EP4.6x4.6mm`+- 3D model: VQFN-40-EP(6x6) (KiCad packages3D, STEP)+- 3D model files: `cc2541f256rhat-etched.step` / `cc2541f256rhat-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cc2541f256rhat.step` / `cc2541f256rhat.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/cc2541) (37 pp, sha256 `6a99abaeb2964fdb`, retrieved 2026-09-27, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/cc2541f256rhat-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "rf and wireless",+ "cc2541f256rhat",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "cc2541f256rhat.kicad_sym",+ "cc2541f256rhat.kicad_mod",+ "cc2541f256rhat.glb",+ "cc2541f256rhat.step",+ "cc2541f256rhat.lbr",+ "docs/hero.png",+ "docs/cc2541f256rhat-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "CC2541F256RHAT",+ "manufacturer": "Texas Instruments",+ "package": "VQFN-40-EP(6x6)",+ "pin_count": 41,+ "category": "RF And Wireless",+ "subcategory": "RF Transceiver ICs",+ "datasheet": "https://www.ti.com/cn/lit/gpn/cc2541",+ "parts": {+ "symbol": "cc2541f256rhat.kicad_sym",+ "footprint": "cc2541f256rhat.kicad_mod",+ "model_3d": "cc2541f256rhat-etched.glb",+ "model_3d_plain": "cc2541f256rhat.glb",+ "model_3d_step": "cc2541f256rhat-etched.step",+ "model_3d_step_plain": "cc2541f256rhat.step",+ "lbr": "cc2541f256rhat.lbr"+ },+ "distributor_links": {+ "lcsc": "C544789",+ "digikey": "296-35514-2-ND",+ "mouser": "595-CC2541F256RHAT"+ },+ "distributor_check": {+ "checked_at": "2026-09-27T08:29:43Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-35514-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-CC2541F256RHAT",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "GND",+ "type": "power_in",+ "description": "Ground connection; connect to GND"+ },+ {+ "number": "2",+ "name": "SCL",+ "type": "bidirectional",+ "description": "I2C clock or general-purpose digital I/O pin; can be used as I2C clock or digital I/O, leave floating if not used, disable pull-up if grounded"+ },+ {+ "number": "3",+ "name": "SDA",+ "type": "bidirectional",+ "description": "I2C data or general-purpose digital I/O pin; can be used as I2C data or digital I/O, leave floating if not used, disable pull-up if grounded"+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "Not connected; do not use"+ },+ {+ "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": "Digital power supply voltage in range 2 V to 3.6 V"+ },+ {+ "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 asynchronous reset input"+ },+ {+ "number": "21",+ "name": "AVDD5",+ "type": "power_in",+ "description": "Analog power supply voltage in range 2 V to 3.6 V"+ },+ {+ "number": "22",+ "name": "XOSC_Q1",+ "type": "bidirectional",+ "description": "32-MHz crystal oscillator input/output pin 1 or external clock input"+ },+ {+ "number": "23",+ "name": "XOSC_Q2",+ "type": "bidirectional",+ "description": "32-MHz crystal oscillator input/output pin 2"+ },+ {+ "number": "24",+ "name": "AVDD3",+ "type": "power_in",+ "description": "Analog power supply voltage in range 2 V to 3.6 V"+ },+ {+ "number": "25",+ "name": "RF_P",+ "type": "bidirectional",+ "description": "Positive RF signal path for low-noise amplifier receive input or power amplifier transmit output"+ },+ {+ "number": "26",+ "name": "RF_N",+ "type": "bidirectional",+ "description": "Negative RF signal path for low-noise amplifier receive input or power amplifier transmit output"+ },+ {+ "number": "27",+ "name": "AVDD2",+ "type": "power_in",+ "description": "Analog power supply voltage in range 2 V to 3.6 V"+ },+ {+ "number": "28",+ "name": "AVDD1",+ "type": "power_in",+ "description": "Analog power supply voltage in range 2 V to 3.6 V"+ },+ {+ "number": "29",+ "name": "AVDD4",+ "type": "power_in",+ "description": "Analog power supply voltage in range 2 V to 3.6 V"+ },+ {+ "number": "30",+ "name": "RBIAS",+ "type": "bidirectional",+ "description": "External precision bias resistor connection for internal reference current generation"+ },+ {+ "number": "31",+ "name": "AVDD6",+ "type": "power_in",+ "description": "Analog power supply voltage in range 2 V to 3.6 V"+ },+ {+ "number": "32",+ "name": "P2_4/OSC32K_Q1",+ "type": "bidirectional",+ "description": "Port 2.4 general-purpose digital I/O or 32.768-kHz crystal oscillator input/output pin"+ },+ {+ "number": "33",+ "name": "P2_3/OSC32K_Q2",+ "type": "bidirectional",+ "description": "Port 2.3 general-purpose digital I/O or 32.768-kHz crystal oscillator input/output pin"+ },+ {+ "number": "34",+ "name": "P2_2/DC",+ "type": "bidirectional",+ "description": "Port 2.2 general-purpose digital I/O or debug clock pin"+ },+ {+ "number": "35",+ "name": "P2_1/DD",+ "type": "bidirectional",+ "description": "Port 2.1 general-purpose digital I/O or debug data pin"+ },+ {+ "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": "Digital power supply voltage in range 2 V to 3.6 V"+ },+ {+ "number": "40",+ "name": "DCOUPL",+ "type": "power_in",+ "description": "1.8-V internal digital voltage regulator decoupling capacitor connection; do not use for external circuit supply"+ },+ {+ "number": "41",+ "name": "GND",+ "type": "power_in",+ "description": "Exposed thermal pad ground connection; must be soldered to solid ground plane for thermal and mechanical performance"+ }+ ],+ "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-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Exposed pad (pin 41) pin number assignment: The PIN DESCRIPTIONS table does not assign a traditional",+ "1/41 pins cited to the wrong page (name found elsewhere): ['41:GND@p17']"+ ],+ "pages_sent": 37,+ "cost_usd": 0.5194,+ "at": "2026-09-27T08:29:23"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/cc2541",+ "pages": 37,+ "sha256": "6a99abaeb2964fdb",+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}