FM1702SL

{
  "slug": "fm1702sl",
  "version": "0.1.0",
  "type": "component",
  "description": "FUDAN MICRO RFID ICs, SOIC-24-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "rf and wireless",
    "fm1702sl",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "fm1702sl.kicad_sym",
    "fm1702sl.kicad_mod",
    "fm1702sl.glb",
    "fm1702sl.step",
    "fm1702sl.lbr",
    "docs/hero.png",
    "docs/fm1702sl-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "fm1702sl-hero.glb",
    "fm1702sl-hero.overlay.json",
    "fm1702sl-etched.glb"
  ],
  "component": {
    "mpn": "FM1702SL",
    "manufacturer": "FUDAN MICRO",
    "package": "SOIC-24-300mil",
    "pin_count": 24,
    "category": "RF And Wireless",
    "subcategory": "RFID ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588882510227394560",
    "parts": {
      "symbol": "fm1702sl.kicad_sym",
      "footprint": "fm1702sl.kicad_mod",
      "model_3d": "fm1702sl-hero.glb",
      "model_3d_plain": "fm1702sl-etched.glb",
      "model_3d_step": "fm1702sl-etched.step",
      "model_3d_step_plain": "fm1702sl.step",
      "lbr": "fm1702sl.lbr"
    },
    "distributor_links": {
      "lcsc": "C22042"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T07:40:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OSCIN",
        "type": "input",
        "description": "Crystal oscillator input at fosc = 13.56 MHz; an external clock is not recommended and must meet the frequency, 40-60% duty cycle and jitter limits in section 19.5.2."
      },
      {
        "number": "2",
        "name": "IRQ",
        "type": "output",
        "description": "Interrupt request output that signals interrupt sources; it is push-pull or open-drain depending on IRQPushPull, and it is high-impedance during reset."
      },
      {
        "number": "3",
        "name": "MFIN",
        "type": "input",
        "description": "Serial input that receives the digital serial signal conforming to the ISO14443A protocol, with Schmitt-trigger input thresholds."
      },
      {
        "number": "4",
        "name": "TX1",
        "type": "output",
        "description": "Transmitter output 1 that delivers the modulated 13.56 MHz carrier, driving the antenna directly through a matching network."
      },
      {
        "number": "5",
        "name": "TVDD",
        "type": "power_in",
        "description": "Transmitter supply that provides the output energy for TX1 and TX2, with an operating range of 3.0 V to 5.5 V."
      },
      {
        "number": "6",
        "name": "TX2",
        "type": "output",
        "description": "Transmitter output 2 that delivers the modulated 13.56 MHz carrier, driving the antenna directly through a matching network."
      },
      {
        "number": "7",
        "name": "TVSS",
        "type": "power_in",
        "description": "Transmitter ground."
      },
      {
        "number": "8",
        "name": "C0",
        "type": "input",
        "description": "Configuration pin that must be fixed to a low level."
      },
      {
        "number": "9",
        "name": "C1",
        "type": "input",
        "description": "Configuration pin that must be fixed to a high level."
      },
      {
        "number": "10",
        "name": "C2",
        "type": "input",
        "description": "Configuration pin that must be fixed to a high level."
      },
      {
        "number": "11",
        "name": "DVSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "12",
        "name": "MISO",
        "type": "output",
        "description": "Master-in slave-out data output of the SPI interface."
      },
      {
        "number": "13",
        "name": "SCK",
        "type": "input",
        "description": "Serial clock input for the SPI interface; the FM1702SL is slave-only, so the master must supply SCK."
      },
      {
        "number": "14",
        "name": "MOSI",
        "type": "input",
        "description": "Master-out slave-in data input of the SPI interface."
      },
      {
        "number": "15",
        "name": "NSS",
        "type": "input",
        "description": "Interface strobe that selects the SPI interface mode; NSS must stay low for multi-byte transfers and go high between data streams."
      },
      {
        "number": "16",
        "name": "C3",
        "type": "input",
        "description": "Configuration pin that must be fixed to a low level."
      },
      {
        "number": "17",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital supply, 3.0-3.6 V (CMOS) or 4.5-5.5 V (TTL), with DVDD less than or equal to AVDD and AVDD less than or equal to TVDD."
      },
      {
        "number": "18",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog supply, 3.0-3.6 V, which must be at least DVDD and no higher than TVDD."
      },
      {
        "number": "19",
        "name": "AUX",
        "type": "output",
        "description": "Analog test signal output whose signal is selected by the TestAnaOutSel register."
      },
      {
        "number": "20",
        "name": "AVSS",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "21",
        "name": "RX",
        "type": "input",
        "description": "Receiver input that receives the 13.56 MHz card response signal coupled from the external antenna."
      },
      {
        "number": "22",
        "name": "VMID",
        "type": "power_out",
        "description": "Internal reference voltage output that requires an external 68 nF capacitor."
      },
      {
        "number": "23",
        "name": "RSTPD",
        "type": "input",
        "description": "Reset and power-down input: a high level resets the internal circuits, stops the oscillator and isolates internal inputs from the external circuit, and a falling edge triggers the internal reset sequence."
      },
      {
        "number": "24",
        "name": "OSCOUT",
        "type": "output",
        "description": "Crystal oscillator output."
      }
    ],
    "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: the datasheet gives the pinout for the SOP24 package only (section 3.1 and 3.2). The 300mil; The pin 8 name is printed as 'CO' in the pin table (page 8). It was read as C0 because section 10.1 ; Pin types conflict between sections. The pin table (section 3.2) lists MISO as output and MOSI as in",
          "1/24 pins cited to the wrong page (name found elsewhere): ['8:C0@p8']"
        ],
        "pages_sent": 53,
        "cost_usd": 0.1296,
        "at": "2026-10-18T07:39:25"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588882510227394560",
        "pages": 110,
        "sha256": "7d98db131605935d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "fm1702sl.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          15.4,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4b0d20f82f5b0124fecfe11c941274a3c865a30f7baee8b8fadd7df55972d4cd",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fm1702sl-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          15.4,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4dbecebe35b2db518e8c06160af12fa4b99d467a1d390941c0719a3c9231ee41",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}