STUSB1602AQTR

{
  "slug": "stusb1602aqtr",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics USB Converters, QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "stusb1602aqtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stusb1602aqtr.kicad_sym",
    "stusb1602aqtr.kicad_mod",
    "stusb1602aqtr.glb",
    "stusb1602aqtr.step",
    "stusb1602aqtr.lbr",
    "docs/hero.png",
    "docs/stusb1602aqtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stusb1602aqtr-hero.glb",
    "stusb1602aqtr-hero.overlay.json"
  ],
  "component": {
    "mpn": "STUSB1602AQTR",
    "manufacturer": "STMicroelectronics",
    "package": "QFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Interface",
    "subcategory": "USB Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588885251795509248",
    "parts": {
      "symbol": "stusb1602aqtr.kicad_sym",
      "footprint": "stusb1602aqtr.kicad_mod",
      "model_3d": "stusb1602aqtr-hero.glb",
      "model_3d_plain": "stusb1602aqtr.glb",
      "model_3d_step": "stusb1602aqtr-etched.step",
      "model_3d_step_plain": "stusb1602aqtr.step",
      "lbr": "stusb1602aqtr.lbr"
    },
    "distributor_links": {
      "lcsc": 713192,
      "digikey": "497-17648-2-ND",
      "mouser": "511-STUSB1602AQTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-03T05:46:32Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-17648-2-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "511-STUSB1602AQTR",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CC1DB",
        "type": "bidirectional",
        "description": "Dead battery mode enable on CC1 pin, connect to CC1 when enabled or to ground when disabled"
      },
      {
        "number": "2",
        "name": "CC1",
        "type": "bidirectional",
        "description": "Type-C configuration channel 1 for attachment detection, plug orientation determination, and system configuration management"
      },
      {
        "number": "3",
        "name": "VCONN",
        "type": "power_in",
        "description": "Power input for active cable supply, 5 V source with internal protection against short-circuit and overvoltage"
      },
      {
        "number": "4",
        "name": "CC2",
        "type": "bidirectional",
        "description": "Type-C configuration channel 2 for attachment detection, plug orientation determination, and system configuration management"
      },
      {
        "number": "5",
        "name": "CC2DB",
        "type": "bidirectional",
        "description": "Dead battery mode enable on CC2 pin, connect to CC2 when enabled or to ground when disabled"
      },
      {
        "number": "6",
        "name": "RESET",
        "type": "input",
        "description": "Active high reset input for internal state initialization"
      },
      {
        "number": "7",
        "name": "SCL",
        "type": "input",
        "description": "I²C serial clock input, requires external pull-up resistor to MCU Vio"
      },
      {
        "number": "8",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I²C serial data open drain bidirectional line, requires external pull-up resistor to MCU Vio"
      },
      {
        "number": "9",
        "name": "ALERT#",
        "type": "tri_state",
        "description": "I²C interrupt output, active low open drain, requires external pull-up resistor to MCU Vio"
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, common reference for all power and signal grounds"
      },
      {
        "number": "11",
        "name": "MOSI",
        "type": "output",
        "description": "Master out slave in: serial data output from STUSB1602 to MCU, BMC decoded from active CC line, valid on SCLK falling edge"
      },
      {
        "number": "12",
        "name": "NSS",
        "type": "tri_state",
        "description": "Chip select output, open drain active low, activates SPI/MSP interface"
      },
      {
        "number": "13",
        "name": "ADDR0",
        "type": "input",
        "description": "I²C device address setting input, static configuration"
      },
      {
        "number": "14",
        "name": "MISO",
        "type": "input",
        "description": "Master in slave out: serial data input from MCU to STUSB1602, BMC encoded for CC line transmission, sampled on SCLK rising edge"
      },
      {
        "number": "15",
        "name": "TX_EN",
        "type": "input",
        "description": "Transmit enable input from MCU, enables BMC encoding and CC line driver when asserted"
      },
      {
        "number": "16",
        "name": "SCLK",
        "type": "tri_state",
        "description": "Serial clock output, open drain, drives SPI/MSP data transfer between MCU and STUSB1602, requires external pull-up"
      },
      {
        "number": "17",
        "name": "A_B_SIDE",
        "type": "tri_state",
        "description": "Cable orientation output, open drain active low, selects USB SuperSpeed signal routing based on CC attachment (HiZ for CC1, 0 for CC2)"
      },
      {
        "number": "18",
        "name": "VBUS_SENSE",
        "type": "input",
        "description": "VBUS voltage monitoring analog input for presence detection, voltage monitoring, and discharge control"
      },
      {
        "number": "19",
        "name": "VBUS_EN_SNK",
        "type": "bidirectional",
        "description": "VBUS sink power path enable, open drain active low, drives PMOS transistor gate when sink role established and VBUS in valid range"
      },
      {
        "number": "20",
        "name": "VBUS_EN_SRC",
        "type": "bidirectional",
        "description": "VBUS source power path enable, open drain active low, drives PMOS transistor gate when source role established and VBUS in valid range"
      },
      {
        "number": "21",
        "name": "VREG_1V2",
        "type": "power_out",
        "description": "1.2 V internal regulator output, connect 1 µF typical external decoupling capacitor (0.5-10 µF range)"
      },
      {
        "number": "22",
        "name": "VSYS",
        "type": "power_in",
        "description": "System power supply input 3.0 V to 5.5 V, or connect to ground if not used"
      },
      {
        "number": "23",
        "name": "VREG_2V7",
        "type": "power_out",
        "description": "2.7 V internal regulator output, connect 1 µF typical external decoupling capacitor (0.5-10 µF range)"
      },
      {
        "number": "24",
        "name": "VDD",
        "type": "power_in",
        "description": "Main power supply from USB power line 4.1 V to 22 V, supplies internal logic and VBUS switching control circuits"
      },
      {
        "number": "25",
        "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": [
          "exposed pad 25 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 18,
        "cost_usd": 0.1532,
        "at": "2026-10-03T05:46:02"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588885251795509248",
        "pages": 39,
        "sha256": "eb35151e98a6b9fb",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  }
}