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CC2541F128RHAR
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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 @@+# CC2541F128RHAR++**Texas Instruments** · RF Transceiver ICs · VQFN-40-EP(6x6)++CC2541F128RHAR 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 pin; connect to GND. |+| 2 | SCL | bidirectional | I2C clock or digital I/O; leave floating if not used, and if grounded the internal pull-up is disabled. |+| 3 | SDA | bidirectional | I2C data or digital I/O; leave floating if not used, and if grounded the internal pull-up is disabled. |+| 4 | NC | unconnected | Unused pin; not connected. |+| 5 | P1_5 | bidirectional | Digital I/O Port 1.5. |+| 6 | P1_4 | bidirectional | Digital I/O Port 1.4. |+| 7 | P1_3 | bidirectional | Digital I/O Port 1.3. |+| 8 | P1_2 | bidirectional | Digital I/O Port 1.2. |+| 9 | P1_1 | bidirectional | 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 | Digital I/O Port 1.0 with 20-mA drive capability. |+| 12 | P0_7 | bidirectional | Digital I/O Port 0.7. |+| 13 | P0_6 | bidirectional | Digital I/O Port 0.6. |+| 14 | P0_5 | bidirectional | Digital I/O Port 0.5. |+| 15 | P0_4 | bidirectional | Digital I/O Port 0.4. |+| 16 | P0_3 | bidirectional | Digital I/O Port 0.3. |+| 17 | P0_2 | bidirectional | Digital I/O Port 0.2. |+| 18 | P0_1 | bidirectional | Digital I/O Port 0.1. |+| 19 | P0_0 | bidirectional | Digital I/O Port 0.0. |+| 20 | RESET_N | input | Reset input, active-low. |+| 21 | AVDD5 | power_in | 2-V to 3.6-V analog power-supply connection. |+| 22 | XOSC_Q1 | bidirectional | 32-MHz crystal oscillator pin 1 or external clock input. |+| 23 | XOSC_Q2 | bidirectional | 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 to the LNA during RX and positive RF output from the PA during TX. |+| 26 | RF_N | bidirectional | Negative RF input to the LNA during RX and negative RF output 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 for the reference current. |+| 31 | AVDD6 | power_in | 2-V to 3.6-V analog power-supply connection. |+| 32 | P2_4 / OSC32K_Q1 | bidirectional | Digital I/O Port 2.4, also 32.768-kHz crystal oscillator pin 1. |+| 33 | P2_3 / OSC32K_Q2 | bidirectional | Digital I/O Port 2.3, also 32.768-kHz crystal oscillator pin 2. |+| 34 | P2_2/DC | bidirectional | Digital I/O Port 2.2, also debug clock. |+| 35 | P2_1/DD | bidirectional | Digital I/O Port 2.1, also debug data. |+| 36 | P2_0 | bidirectional | Digital I/O Port 2.0. |+| 37 | P1_7 | bidirectional | Digital I/O Port 1.7. |+| 38 | P1_6 | bidirectional | 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; do not use for supplying external circuits. |+| 41 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-40-EP(6x6) |+| Category | RF And Wireless |+| Pins | 41 |++## CAD (KiCad official)++- Symbol: `CC2541F128RHAR`+- 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: `cc2541f128rhar-etched.step` / `cc2541f128rhar-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cc2541f128rhar.step` / `cc2541f128rhar.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) (43 pp, sha256 `6b1813796f4e03c7`, retrieved 2026-10-07, 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 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (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/cc2541f128rhar-datasheet.pdf)
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connect to GND."+ },+ {+ "number": "2",+ "name": "SCL",+ "type": "bidirectional",+ "description": "I2C clock or digital I/O; leave floating if not used, and if grounded the internal pull-up is disabled."+ },+ {+ "number": "3",+ "name": "SDA",+ "type": "bidirectional",+ "description": "I2C data or digital I/O; leave floating if not used, and if grounded the internal pull-up is disabled."+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "Unused pin; not connected."+ },+ {+ "number": "5",+ "name": "P1_5",+ "type": "bidirectional",+ "description": "Digital I/O Port 1.5."+ },+ {+ "number": "6",+ "name": "P1_4",+ "type": "bidirectional",+ "description": "Digital I/O Port 1.4."+ },+ {+ "number": "7",+ "name": "P1_3",+ "type": "bidirectional",+ "description": "Digital I/O Port 1.3."+ },+ {+ "number": "8",+ "name": "P1_2",+ "type": "bidirectional",+ "description": "Digital I/O Port 1.2."+ },+ {+ "number": "9",+ "name": "P1_1",+ "type": "bidirectional",+ "description": "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": "Digital I/O Port 1.0 with 20-mA drive capability."+ },+ {+ "number": "12",+ "name": "P0_7",+ "type": "bidirectional",+ "description": "Digital I/O Port 0.7."+ },+ {+ "number": "13",+ "name": "P0_6",+ "type": "bidirectional",+ "description": "Digital I/O Port 0.6."+ },+ {+ "number": "14",+ "name": "P0_5",+ "type": "bidirectional",+ "description": "Digital I/O Port 0.5."+ },+ {+ "number": "15",+ "name": "P0_4",+ "type": "bidirectional",+ "description": "Digital I/O Port 0.4."+ },+ {+ "number": "16",+ "name": "P0_3",+ "type": "bidirectional",+ "description": "Digital I/O Port 0.3."+ },+ {+ "number": "17",+ "name": "P0_2",+ "type": "bidirectional",+ "description": "Digital I/O Port 0.2."+ },+ {+ "number": "18",+ "name": "P0_1",+ "type": "bidirectional",+ "description": "Digital I/O Port 0.1."+ },+ {+ "number": "19",+ "name": "P0_0",+ "type": "bidirectional",+ "description": "Digital I/O Port 0.0."+ },+ {+ "number": "20",+ "name": "RESET_N",+ "type": "input",+ "description": "Reset input, active-low."+ },+ {+ "number": "21",+ "name": "AVDD5",+ "type": "power_in",+ "description": "2-V to 3.6-V analog power-supply connection."+ },+ {+ "number": "22",+ "name": "XOSC_Q1",+ "type": "bidirectional",+ "description": "32-MHz crystal oscillator pin 1 or external clock input."+ },+ {+ "number": "23",+ "name": "XOSC_Q2",+ "type": "bidirectional",+ "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 to the LNA during RX and positive RF output from the PA during TX."+ },+ {+ "number": "26",+ "name": "RF_N",+ "type": "bidirectional",+ "description": "Negative RF input to the LNA during RX and negative RF output 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 for the reference current."+ },+ {+ "number": "31",+ "name": "AVDD6",+ "type": "power_in",+ "description": "2-V to 3.6-V analog power-supply connection."+ },+ {+ "number": "32",+ "name": "P2_4 / OSC32K_Q1",+ "type": "bidirectional",+ "description": "Digital I/O Port 2.4, also 32.768-kHz crystal oscillator pin 1."+ },+ {+ "number": "33",+ "name": "P2_3 / OSC32K_Q2",+ "type": "bidirectional",+ "description": "Digital I/O Port 2.3, also 32.768-kHz crystal oscillator pin 2."+ },+ {+ "number": "34",+ "name": "P2_2/DC",+ "type": "bidirectional",+ "description": "Digital I/O Port 2.2, also debug clock."+ },+ {+ "number": "35",+ "name": "P2_1/DD",+ "type": "bidirectional",+ "description": "Digital I/O Port 2.1, also debug data."+ },+ {+ "number": "36",+ "name": "P2_0",+ "type": "bidirectional",+ "description": "Digital I/O Port 2.0."+ },+ {+ "number": "37",+ "name": "P1_7",+ "type": "bidirectional",+ "description": "Digital I/O Port 1.7."+ },+ {+ "number": "38",+ "name": "P1_6",+ "type": "bidirectional",+ "description": "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; do not use for supplying external circuits."+ },+ {+ "number": "41",+ "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 exposed thermal ground pad (GND, 'Ground Pad' in Figure 8 and the pin table) is not given a pin ; Pin 40 DCOUPL is listed as 'Power (digital)' in the datasheet, but it is the output of the on-chip 1; The page 16 pinout figure text is garbled in the extraction, so pin numbers were taken from the PIN ",+ "exposed pad 41 added from the footprint"+ ],+ "pages_sent": 12,+ "cost_usd": 0.0948,+ "at": "2026-10-07T23:44:31"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/cc2541",+ "pages": 43,+ "sha256": "6b1813796f4e03c7",+ "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": "cc2541f128rhar.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": "cc2541f128rhar-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": "0891509244d4bb438f7ea5c5ba608cc3838cf9e04c81ddb73cef7535c87fa080",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}