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CC2540F256RHAR
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Texas Instruments RF Transceiver ICs, WQFN-40-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+77@@ -0,0 +1,77 @@+# CC2540F256RHAR++**Texas Instruments** · RF Transceiver ICs · WQFN-40-EP(6x6)++CC2540F256RHAR from Texas Instruments, in a WQFN-40-EP(6x6). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | DGND_USB | power_in | USB ground pin; connect to GND. |+| 2 | USB_P | bidirectional | USB D+ differential data line for the full-speed USB interface. |+| 3 | USB_N | bidirectional | USB D- differential data line for the full-speed USB interface. |+| 4 | DVDD_USB | power_in | 2 V to 3.6 V digital power-supply connection for the USB interface. |+| 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 | 2 V to 3.6 V digital power-supply connection. |+| 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 chip reset input; minimum low-pulse duration of 1 µs for a complete reset. |+| 21 | AVDD5 | power_in | 2 V to 3.6 V analog power-supply connection; VDD reference for the ADC input voltage on this pin. |+| 22 | XOSC_Q1 | passive | 32-MHz crystal oscillator pin 1, or external-clock input. |+| 23 | XOSC_Q2 | passive | 32-MHz crystal oscillator pin 2. |+| 24 | AVDD3 | power_in | 2 V to 3.6 V analog power-supply connection. |+| 25 | RF_P | bidirectional | Positive RF input signal to the LNA during RX, and positive RF output signal from the PA during TX. |+| 26 | RF_N | bidirectional | Negative RF input signal to the LNA during RX, and negative RF output signal from the PA during TX. |+| 27 | AVDD2 | power_in | 2 V to 3.6 V analog power-supply connection. |+| 28 | AVDD1 | power_in | 2 V to 3.6 V analog power-supply connection. |+| 29 | AVDD4 | power_in | 2 V to 3.6 V analog power-supply connection. |+| 30 | RBIAS | passive | External precision bias resistor connection used for reference current generation. |+| 31 | AVDD6 | power_in | 2 V to 3.6 V analog power-supply connection. |+| 32 | P2_4/XOSC32K_Q1 | bidirectional | General-purpose digital I/O Port 2.4, alternatively the 32.768-kHz crystal oscillator pin 1 (analog I/O). |+| 33 | P2_3/XOSC32K_Q2 | bidirectional | General-purpose digital I/O Port 2.3, alternatively the 32.768-kHz crystal oscillator pin 2 (analog I/O). |+| 34 | P2_2 | bidirectional | General-purpose digital I/O, Port 2.2; also used as debug clock line in the two-wire debug interface. |+| 35 | P2_1 | bidirectional | General-purpose digital I/O, Port 2.1; also used as debug data line in the two-wire debug interface. |+| 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 | 2 V to 3.6 V digital power-supply connection. |+| 40 | DCOUPL | power_out | 1.8-V digital power-supply decoupling node for the internal digital regulator; do not use to supply external circuits. |+| 41 | GND | power_in | Exposed die-attach/ground pad; must be soldered to a solid ground plane as it forms the chip's ground connection. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | WQFN-40-EP(6x6) |+| Category | RF And Wireless |+| Pins | 41 |++## CAD (KiCad official)++- Symbol: `CC2540F256RHAR`+- Footprint: `Package_DFN_QFN:QFN-40-1EP_6x6mm_P0.5mm_EP4.6x4.6mm`+- 3D model: WQFN-40-EP(6x6) (KiCad packages3D, STEP)+- 3D model files: `cc2540f256rhar-etched.step` / `cc2540f256rhar-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cc2540f256rhar.step` / `cc2540f256rhar.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/cc2540) (36 pp, sha256 `2c8f3edd5c0452e5`, retrieved 2026-09-23, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5` (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/cc2540f256rhar-datasheet.pdf)
page.jsonadded+342@@ -0,0 +1,342 @@+{+ "slug": "cc2540f256rhar",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments RF Transceiver ICs, WQFN-40-EP(6x6). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "rf and wireless",+ "cc2540f256rhar",+ "factory-2.0.0",+ "extractor-text"+ ],+ "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",+ "docs/hero.png",+ "docs/cc2540f256rhar-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}