component
CC2531F256RHAR
Public Made by Adomby adom
Texas Instruments RF Transceiver ICs, VQFN-40-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"type": "component",
"slug": "cc2531f256rhar",
"title": "CC2531F256RHAR",
"brief": "Texas Instruments RF Transceiver ICs, VQFN-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": [
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"rf & radio",
"cc2531f256rhar",
"factory-2.0.0",
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],
"component": {
"mpn": "CC2531F256RHAR",
"manufacturer": "Texas Instruments",
"package": "VQFN-40-EP(6x6)",
"pin_count": 41,
"category": "RF & Radio",
"subcategory": "RF Transceiver ICs",
"datasheet": "https://www.ti.com/cn/lit/gpn/cc2531",
"parts": {
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"footprint": "cc2531f256rhar.kicad_mod",
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"model_3d_plain": "cc2531f256rhar.glb",
"model_3d_step": "cc2531f256rhar-etched.step",
"model_3d_step_plain": "cc2531f256rhar.step",
"lbr": "cc2531f256rhar.lbr"
},
"distributor_links": {
"lcsc": "C48478",
"digikey": "296-43587-2-ND",
"mouser": "595-CC2531F256RHAR"
},
"distributor_check": {
"checked_at": "2026-10-07T01:38:45Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-43587-2-ND",
"status": "found",
"lifecycle": "Active"
},
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"pn": "595-CC2531F256RHAR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "DGND_USB",
"type": "power_in",
"description": "Ground connection for USB interface pads."
},
{
"number": "2",
"name": "USB_P",
"type": "bidirectional",
"description": "USB differential data plus (D+) signal connection."
},
{
"number": "3",
"name": "USB_N",
"type": "bidirectional",
"description": "USB differential data minus (D-) signal connection."
},
{
"number": "4",
"name": "DVDD_USB",
"type": "power_in",
"description": "3.3V power supply connection for USB pads."
},
{
"number": "5",
"name": "P1_5",
"type": "bidirectional",
"description": "Digital I/O port 1.5 pin."
},
{
"number": "6",
"name": "P1_4",
"type": "bidirectional",
"description": "Digital I/O port 1.4 pin."
},
{
"number": "7",
"name": "P1_3",
"type": "bidirectional",
"description": "Digital I/O port 1.3 pin."
},
{
"number": "8",
"name": "P1_2",
"type": "bidirectional",
"description": "Digital I/O port 1.2 pin."
},
{
"number": "9",
"name": "P1_1",
"type": "bidirectional",
"description": "Digital I/O port 1.1 pin 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 pin with 20-mA drive capability."
},
{
"number": "12",
"name": "P0_7",
"type": "bidirectional",
"description": "Digital I/O port 0.7 pin."
},
{
"number": "13",
"name": "P0_6",
"type": "bidirectional",
"description": "Digital I/O port 0.6 pin."
},
{
"number": "14",
"name": "P0_5",
"type": "bidirectional",
"description": "Digital I/O port 0.5 pin."
},
{
"number": "15",
"name": "P0_4",
"type": "bidirectional",
"description": "Digital I/O port 0.4 pin."
},
{
"number": "16",
"name": "P0_3",
"type": "bidirectional",
"description": "Digital I/O port 0.3 pin."
},
{
"number": "17",
"name": "P0_2",
"type": "bidirectional",
"description": "Digital I/O port 0.2 pin."
},
{
"number": "18",
"name": "P0_1",
"type": "bidirectional",
"description": "Digital I/O port 0.1 pin."
},
{
"number": "19",
"name": "P0_0",
"type": "bidirectional",
"description": "Digital I/O port 0.0 pin."
},
{
"number": "20",
"name": "RESET_N",
"type": "input",
"description": "Active-low reset signal input."
},
{
"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 signal for LNA input during receive and PA output during transmit."
},
{
"number": "26",
"name": "RF_N",
"type": "bidirectional",
"description": "Negative RF signal for LNA input during receive and PA output during transmit."
},
{
"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": "bidirectional",
"description": "External precision bias resistor for reference current connection."
},
{
"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": "Digital I/O port 2.4 or 32.768-kHz crystal oscillator pin 1."
},
{
"number": "33",
"name": "P2_3/XOSC32K_Q2",
"type": "bidirectional",
"description": "Digital I/O port 2.3 or 32.768-kHz crystal oscillator pin 2."
},
{
"number": "34",
"name": "P2_2",
"type": "bidirectional",
"description": "Digital I/O port 2.2 pin."
},
{
"number": "35",
"name": "P2_1",
"type": "bidirectional",
"description": "Digital I/O port 2.1 pin."
},
{
"number": "36",
"name": "P2_0",
"type": "bidirectional",
"description": "Digital I/O port 2.0 pin."
},
{
"number": "37",
"name": "P1_7",
"type": "bidirectional",
"description": "Digital I/O port 1.7 pin."
},
{
"number": "38",
"name": "P1_6",
"type": "bidirectional",
"description": "Digital I/O port 1.6 pin."
},
{
"number": "39",
"name": "DVDD1",
"type": "power_in",
"description": "2-V to 3.6-V digital power-supply connection."
},
{
"number": "40",
"name": "DCOUPL",
"type": "power_in",
"description": "1.8-V digital power-supply decoupling connection; do not use for external circuit power."
},
{
"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-4-5-20251001",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Exposed ground pad (GND) does not have a printed pin number in the package; it is specified in the p",
"exposed pad 41 added from the footprint",
"dropped thermal pad ['EP'] absent from footprint"
],
"pages_sent": 9,
"cost_usd": 0.1734,
"at": "2026-10-07T01:38:26"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/cc2531",
"pages": 43,
"sha256": "c45dac1eac9cf199",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 41,
"described": 41,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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"footprint": "viewers/footprint.html"
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"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "e5b4286c2329085d9ef7f90d5eb5bf41a435241ecc1baaf1383823b6d6a946ae",
"checked": "2026-10-07",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
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"role": "eda",
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"seat": "z = 0",
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"footprint_binding": "identity",
"sha256": "22a09f79eac3c25e95a62aa28c4281b29bed30a1e13f8df48154a4a89689d944",
"checked": "2026-10-07",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "VQFN-40-EP(6x6)",
"Category": "RF & Radio",
"Pins": "41"
}
},
"variants": [],
"sections": [
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"discovery_triggers": [
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"discovery_pitch": "CC2531F256RHAR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
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