ST25R3915-AQFT

{
  "slug": "st25r3915-aqft",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics RFID ICs, QFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "rf and wireless",
    "st25r3915-aqft",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "st25r3915-aqft.kicad_sym",
    "st25r3915-aqft.kicad_mod",
    "st25r3915-aqft.glb",
    "st25r3915-aqft.step",
    "st25r3915-aqft.lbr",
    "docs/hero.png",
    "docs/st25r3915-aqft-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "st25r3915-aqft-hero.glb",
    "st25r3915-aqft-hero.overlay.json"
  ],
  "component": {
    "mpn": "ST25R3915-AQFT",
    "manufacturer": "STMicroelectronics",
    "package": "QFN-32(5x5)",
    "pin_count": 33,
    "category": "RF And Wireless",
    "subcategory": "RFID ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590418057009913856",
    "parts": {
      "symbol": "st25r3915-aqft.kicad_sym",
      "footprint": "st25r3915-aqft.kicad_mod",
      "model_3d": "st25r3915-aqft-hero.glb",
      "model_3d_plain": "st25r3915-aqft.glb",
      "model_3d_step": "st25r3915-aqft-etched.step",
      "model_3d_step_plain": "st25r3915-aqft.step",
      "lbr": "st25r3915-aqft.lbr"
    },
    "distributor_links": {
      "lcsc": "C3304175",
      "digikey": "497-17182-2-ND",
      "mouser": "511-ST25R3915-AQFT"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T18:05:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-17182-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-ST25R3915-AQFT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD_IO",
        "type": "power_in",
        "description": "Positive supply for peripheral communication, operating range 1.65 to 5.5 V."
      },
      {
        "number": "2",
        "name": "CSO",
        "type": "output",
        "description": "Capacitive sensor output; pin is in the 3 V domain with an operating voltage range of -0.5 to 3.6 V."
      },
      {
        "number": "3",
        "name": "VSP_D",
        "type": "power_out",
        "description": "Digital supply regulator output; pin is in the 3 V domain with an operating voltage range of -0.5 to 3.6 V."
      },
      {
        "number": "4",
        "name": "XTO",
        "type": "output",
        "description": "Crystal oscillator output; supports a 13.56 or 27.12 MHz crystal with fast start-up."
      },
      {
        "number": "5",
        "name": "XTI",
        "type": "input",
        "description": "Crystal oscillator input; supports a 13.56 or 27.12 MHz crystal, and the pin is limited to -0.5 to 3.6 V."
      },
      {
        "number": "6",
        "name": "VSN_D",
        "type": "power_in",
        "description": "Digital ground, nominally 0 V."
      },
      {
        "number": "7",
        "name": "VSP_A",
        "type": "power_out",
        "description": "Analog supply regulator output; pin is in the 3 V domain with an operating voltage range of -0.5 to 3.6 V."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "External positive supply, operating range 2.4 to 5.5 V (absolute maximum 6.0 V)."
      },
      {
        "number": "9",
        "name": "VSP_RF",
        "type": "power_out",
        "description": "Supply regulator output for the antenna drivers; pin is in the 5 V domain with an operating voltage range of -0.5 to 5.5 V."
      },
      {
        "number": "10",
        "name": "RFO1",
        "type": "output",
        "description": "Antenna driver output 1 (differential or single-ended), with a driver current of 0 to 500 mA and a 5 V domain limit of -0.5 to 5.5 V."
      },
      {
        "number": "11",
        "name": "RFO2",
        "type": "output",
        "description": "Antenna driver output 2 (differential or single-ended), with a driver current of 0 to 500 mA and a 5 V domain limit of -0.5 to 5.5 V."
      },
      {
        "number": "12",
        "name": "VSN_RF",
        "type": "power_in",
        "description": "Ground of the antenna drivers, nominally 0 V."
      },
      {
        "number": "13",
        "name": "TRIM1_3 / NC",
        "type": "unconnected",
        "description": "Not connected on the ST25R3915; the TRIM antenna tuning input is available only on the ST25R3914."
      },
      {
        "number": "14",
        "name": "TRIM2_3 / NC",
        "type": "unconnected",
        "description": "Not connected on the ST25R3915; the TRIM antenna tuning input is available only on the ST25R3914."
      },
      {
        "number": "15",
        "name": "TRIM1_2 / NC",
        "type": "unconnected",
        "description": "Not connected on the ST25R3915; the TRIM antenna tuning input is available only on the ST25R3914."
      },
      {
        "number": "16",
        "name": "TRIM2_2 / NC",
        "type": "unconnected",
        "description": "Not connected on the ST25R3915; the TRIM antenna tuning input is available only on the ST25R3914."
      },
      {
        "number": "17",
        "name": "TRIM1_1 / NC",
        "type": "unconnected",
        "description": "Not connected on the ST25R3915; the TRIM antenna tuning input is available only on the ST25R3914."
      },
      {
        "number": "18",
        "name": "TRIM2_1 / NC",
        "type": "unconnected",
        "description": "Not connected on the ST25R3915; the TRIM antenna tuning input is available only on the ST25R3914."
      },
      {
        "number": "19",
        "name": "TRIM1_0 / NC",
        "type": "unconnected",
        "description": "Not connected on the ST25R3915; the TRIM antenna tuning input is available only on the ST25R3914."
      },
      {
        "number": "20",
        "name": "TRIM2_0 / NC",
        "type": "unconnected",
        "description": "Not connected on the ST25R3915; the TRIM antenna tuning input is available only on the ST25R3914."
      },
      {
        "number": "21",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground and die substrate potential, 0 V."
      },
      {
        "number": "22",
        "name": "RFI1",
        "type": "input",
        "description": "Receiver input 1; RFI amplitude 0.150 to 3 Vpp for NFC receive, with 2.5 Vpp recommended in HF reader and NFC transmit modes."
      },
      {
        "number": "23",
        "name": "RFI2",
        "type": "input",
        "description": "Receiver input 2; RFI amplitude 0.150 to 3 Vpp for NFC receive, with 2.5 Vpp recommended in HF reader and NFC transmit modes."
      },
      {
        "number": "24",
        "name": "AGD",
        "type": "bidirectional",
        "description": "Analog reference voltage; pin is in the 3 V domain with an operating voltage range of -0.5 to 3.6 V."
      },
      {
        "number": "25",
        "name": "CSI",
        "type": "input",
        "description": "Capacitive sensor input; pin is in the 3 V domain with an operating voltage range of -0.5 to 3.6 V."
      },
      {
        "number": "26",
        "name": "VSN_A",
        "type": "power_in",
        "description": "Analog ground, nominally 0 V."
      },
      {
        "number": "27",
        "name": "IRQ",
        "type": "output",
        "description": "Interrupt request output; peripheral IO pin with an operating voltage range of -0.5 to 5.5 V."
      },
      {
        "number": "28",
        "name": "MCU_CLK",
        "type": "output",
        "description": "Microcontroller clock output; peripheral IO pin with an operating voltage range of -0.5 to 5.5 V."
      },
      {
        "number": "29",
        "name": "MISO",
        "type": "tri_state",
        "description": "Serial Peripheral Interface data output, tri-stateable; peripheral IO pin with an operating voltage range of -0.5 to 5.5 V."
      },
      {
        "number": "30",
        "name": "MOSI",
        "type": "input",
        "description": "Serial Peripheral Interface data input; CMOS input with an operating voltage range of -0.5 to 5.5 V."
      },
      {
        "number": "31",
        "name": "SCLK",
        "type": "input",
        "description": "Serial Peripheral Interface clock input; CMOS input with an operating voltage range of -0.5 to 5.5 V."
      },
      {
        "number": "32",
        "name": "/SS",
        "type": "input",
        "description": "Serial Peripheral Interface enable, active low; CMOS input with an operating voltage range of -0.5 to 5.5 V."
      },
      {
        "number": "33",
        "name": "VSS",
        "type": "power_in",
        "description": "Exposed pad: ground and die substrate potential, to be connected to VSS on the PCB."
      }
    ],
    "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: Pin 33 is the exposed thermal pad (VSS), not one of the 32 numbered terminals. It is included becaus; Table 88 lists the ST25R3915 as NC on pins 13 to 20. These are TRIM pins on the ST25R3914 only, so t; Pin type for pin 4 (XTO), pin 2 (CSO), pin 10/11 (RFO) and pins 27-28 are taken from the table's 'An",
          "2/33 pins cited to the wrong page (name found elsewhere): ['6:VSN_D@p116', '12:VSN_RF@p116']"
        ],
        "pages_sent": 24,
        "cost_usd": 0.1411,
        "at": "2026-10-08T18:04:48"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590418057009913856",
        "pages": 128,
        "sha256": "3a63adf1e0f82121",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "st25r3915-aqft.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "st25r3915-aqft-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "fa28a1f812cb94fb63f0a45136f12255ec71c77dd3c1cedf9377c23d50fe500f",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}