FSV9523

{
  "slug": "fsv9523",
  "version": "0.1.0",
  "type": "component",
  "description": "Forsinve RFID ICs, QFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "rf and wireless",
    "fsv9523",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "fsv9523.kicad_sym",
    "fsv9523.kicad_mod",
    "fsv9523.glb",
    "fsv9523.step",
    "fsv9523.lbr",
    "docs/hero.png",
    "docs/fsv9523-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "fsv9523-hero.glb",
    "fsv9523-hero.overlay.json",
    "fsv9523-etched.glb"
  ],
  "component": {
    "mpn": "FSV9523",
    "manufacturer": "Forsinve",
    "package": "QFN-32(5x5)",
    "pin_count": 33,
    "category": "RF And Wireless",
    "subcategory": "RFID ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603101970450702336",
    "parts": {
      "symbol": "fsv9523.kicad_sym",
      "footprint": "fsv9523.kicad_mod",
      "model_3d": "fsv9523-hero.glb",
      "model_3d_plain": "fsv9523-etched.glb",
      "model_3d_step": "fsv9523-etched.step",
      "model_3d_step_plain": "fsv9523.step",
      "lbr": "fsv9523.lbr"
    },
    "distributor_links": {
      "lcsc": "C5336461"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T04:10:03Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "I2C",
        "type": "input",
        "description": "I2C-bus enable input; a logic 1 on this pin selects the I2C-bus interface during interface detection after reset (Table 5)."
      },
      {
        "number": "2",
        "name": "PVDD",
        "type": "power_in",
        "description": "Pin power supply, which must always be the same or a lower voltage than DVDD (VDD(PVDD) ≤ VDDD)."
      },
      {
        "number": "3",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital power supply, which must always be the same voltage as AVDD and TVDD."
      },
      {
        "number": "4",
        "name": "DVSS",
        "type": "power_in",
        "description": "Digital ground; connection of the underside heatsink pad is not necessary, and an optional connection to this pin is possible."
      },
      {
        "number": "5",
        "name": "PVSS",
        "type": "power_in",
        "description": "Pin power supply ground."
      },
      {
        "number": "6",
        "name": "NRSTPD",
        "type": "input",
        "description": "Reset and power-down input: a positive edge enables reset, and a LOW level enables power-down, which switches off the internal current sinks, inhibits the oscillator and disconnects the input pins from the outside world."
      },
      {
        "number": "7",
        "name": "MFIN",
        "type": "input",
        "description": "MIFARE signal input, powered from the SVDD supply (pin 9)."
      },
      {
        "number": "8",
        "name": "MFOUT",
        "type": "output",
        "description": "MIFARE signal output, powered from the SVDD supply (pin 9)."
      },
      {
        "number": "9",
        "name": "SVDD",
        "type": "power_in",
        "description": "MFIN and MFOUT pin power supply."
      },
      {
        "number": "10",
        "name": "TVSS",
        "type": "power_in",
        "description": "Transmitter output stage 1 ground."
      },
      {
        "number": "11",
        "name": "TX1",
        "type": "output",
        "description": "Transmitter 1 modulated 13.56 MHz energy carrier output, whose output stage is supplied from TVDD."
      },
      {
        "number": "12",
        "name": "TVDD",
        "type": "power_in",
        "description": "Transmitter power supply for the output stages of transmitters 1 and 2, which must always be the same voltage as DVDD and AVDD."
      },
      {
        "number": "13",
        "name": "TX2",
        "type": "output",
        "description": "Transmitter 2 modulated 13.56 MHz energy carrier output, whose output stage is supplied from TVDD."
      },
      {
        "number": "14",
        "name": "TVSS",
        "type": "power_in",
        "description": "Transmitter output stage 2 ground."
      },
      {
        "number": "15",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply, which must always be the same voltage as DVDD and TVDD (VDDA = 3 V in the quick reference conditions)."
      },
      {
        "number": "16",
        "name": "VMID",
        "type": "power_in",
        "description": "Internal reference voltage pin (type P as printed in the datasheet)."
      },
      {
        "number": "17",
        "name": "RX",
        "type": "input",
        "description": "RF signal input for the receiver."
      },
      {
        "number": "18",
        "name": "AVSS",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "19",
        "name": "AUX1",
        "type": "output",
        "description": "Auxiliary output for test purposes."
      },
      {
        "number": "20",
        "name": "AUX2",
        "type": "output",
        "description": "Auxiliary output for test purposes."
      },
      {
        "number": "21",
        "name": "OSCIN",
        "type": "input",
        "description": "Crystal oscillator inverting amplifier input, which is also the input for an externally generated clock of fclk = 27.12 MHz."
      },
      {
        "number": "22",
        "name": "OSCOUT",
        "type": "output",
        "description": "Crystal oscillator inverting amplifier output."
      },
      {
        "number": "23",
        "name": "IRQ",
        "type": "output",
        "description": "Interrupt request output that indicates an interrupt event."
      },
      {
        "number": "24",
        "name": "SDA/NSS/RX",
        "type": "bidirectional",
        "description": "I2C-bus serial data line input/output, which alternatively serves as SPI slave select input NSS or UART address input RX depending on the detected host interface (Table 5)."
      },
      {
        "number": "25",
        "name": "D1/ADR_5",
        "type": "bidirectional",
        "description": "Test port I/O pin D1, which alternatively serves as I2C-bus address 5 input ADR_5; when SPI is used only D1 to D4 can be used as test pins."
      },
      {
        "number": "26",
        "name": "D2/ADR_4",
        "type": "bidirectional",
        "description": "Test port I/O pin D2, which alternatively serves as I2C-bus address 4 input ADR_4."
      },
      {
        "number": "27",
        "name": "D3/ADR_3",
        "type": "bidirectional",
        "description": "Test port I/O pin D3, which alternatively serves as I2C-bus address 3 input ADR_3."
      },
      {
        "number": "28",
        "name": "D4/ADR_2",
        "type": "bidirectional",
        "description": "Test port I/O pin D4, which alternatively serves as I2C-bus address 2 input ADR_2."
      },
      {
        "number": "29",
        "name": "D5/ADR_1/SCK/DTRQ",
        "type": "bidirectional",
        "description": "Test port I/O pin D5, which alternatively serves as I2C-bus address 1 input ADR_1, SPI serial clock input SCK, or UART request-to-send output DTRQ."
      },
      {
        "number": "30",
        "name": "D6/ADR_0/MOSI/MX",
        "type": "bidirectional",
        "description": "Test port I/O pin D6, which alternatively serves as I2C-bus address 0 input ADR_0, SPI master out slave in MOSI, or UART output MX."
      },
      {
        "number": "31",
        "name": "D7/SCL/MISO/TX",
        "type": "bidirectional",
        "description": "Test port I/O pin D7, which alternatively serves as I2C-bus clock input/output SCL, SPI master in slave out MISO, or UART data output TX."
      },
      {
        "number": "32",
        "name": "EA",
        "type": "input",
        "description": "External address input used to code the I2C-bus address."
      },
      {
        "number": "33",
        "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: Package check: the datasheet orders FSV9523 only as HVQFN32 (body 5 x 5 x 0.85 mm, Table 2, page 3),; VMID (pin 16) is printed as type P (internal reference voltage) and was mapped to power_in following; Pins 24 to 31 are multi-function. The types shown are the datasheet's primary I/O classification for",
          "exposed pad 33 added from the footprint"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0749,
        "at": "2026-10-18T04:09:09"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603101970450702336",
        "pages": 88,
        "sha256": "6463f993b9537679",
        "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": "fsv9523.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fsv9523-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": "874b5a0069e7b9d30928e7aa4b5dce34c09400a97189a709c0b956c86181aa03",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}