USB4604-1080HN

{
  "slug": "usb4604-1080hn",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech USB ICs, QFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "usb4604-1080hn",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "usb4604-1080hn.kicad_sym",
    "usb4604-1080hn.kicad_mod",
    "usb4604-1080hn.glb",
    "usb4604-1080hn.step",
    "usb4604-1080hn.lbr",
    "docs/hero.png",
    "docs/usb4604-1080hn-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "usb4604-1080hn-hero.glb",
    "usb4604-1080hn-hero.overlay.json",
    "usb4604-1080hn-etched.glb"
  ],
  "component": {
    "mpn": "USB4604-1080HN",
    "manufacturer": "Microchip Tech",
    "package": "QFN-48-EP(7x7)",
    "pin_count": 49,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "USB ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/fe674717d0059b90aca004d43843e5e1.pdf",
    "parts": {
      "symbol": "usb4604-1080hn.kicad_sym",
      "footprint": "usb4604-1080hn.kicad_mod",
      "model_3d": "usb4604-1080hn-hero.glb",
      "model_3d_plain": "usb4604-1080hn-etched.glb",
      "model_3d_step": "usb4604-1080hn-etched.step",
      "model_3d_step_plain": "usb4604-1080hn.step",
      "lbr": "usb4604-1080hn.lbr"
    },
    "distributor_links": {
      "lcsc": "C633602",
      "digikey": "USB4604-1080HN-ND",
      "mouser": "579-USB4604-1080HN"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T18:22:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "USB4604-1080HN-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "579-USB4604-1080HN",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Battery power supply input; a 4.7 µF (<1 Ω ESR) capacitor to ground is required for internal 3.3V regulator stability."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "3",
        "name": "SWAP_USBDN1_DM/PRT_DIS_M1",
        "type": "bidirectional",
        "description": "Downstream USB Port 1 D- data signal (swappable with upstream Port 0); PRT_DIS_M1 and PRT_DIS_P1 must both be tied to VDD33 at reset to disable Port 1."
      },
      {
        "number": "4",
        "name": "SWAP_USBDN1_DP/PRT_DIS_P1",
        "type": "bidirectional",
        "description": "Downstream USB Port 1 D+ data signal (swappable with upstream Port 0); PRT_DIS_P1 and PRT_DIS_M1 must both be tied to VDD33 at reset to disable Port 1."
      },
      {
        "number": "5",
        "name": "USBDN2_DM/PRT_DIS_M2",
        "type": "bidirectional",
        "description": "Downstream USB Port 2 D- data signal; PRT_DIS_M2 and PRT_DIS_P2 must both be tied to VDD33 at reset to disable Port 2."
      },
      {
        "number": "6",
        "name": "USBDN2_DP/PRT_DIS_P2",
        "type": "bidirectional",
        "description": "Downstream USB Port 2 D+ data signal; PRT_DIS_P2 and PRT_DIS_M2 must both be tied to VDD33 at reset to disable Port 2."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "8",
        "name": "USBDN3_DM/PRT_DIS_M3",
        "type": "bidirectional",
        "description": "Downstream USB Port 3 D- data signal; PRT_DIS_M3 and PRT_DIS_P3 must both be tied to VDD33 at reset to disable Port 3."
      },
      {
        "number": "9",
        "name": "USBDN3_DP/PRT_DIS_P3",
        "type": "bidirectional",
        "description": "Downstream USB Port 3 D+ data signal; PRT_DIS_P3 and PRT_DIS_M3 must both be tied to VDD33 at reset to disable Port 3."
      },
      {
        "number": "10",
        "name": "USBDN4_DM/PRT_DIS_M4",
        "type": "bidirectional",
        "description": "Downstream USB Port 4 D- data signal; PRT_DIS_M4 and PRT_DIS_P4 must both be tied to VDD33 at reset to disable Port 4."
      },
      {
        "number": "11",
        "name": "USBDN4_DP/PRT_DIS_P4",
        "type": "bidirectional",
        "description": "Downstream USB Port 4 D+ data signal; PRT_DIS_P4 and PRT_DIS_M4 must both be tied to VDD33 at reset to disable Port 4."
      },
      {
        "number": "12",
        "name": "VDDA33",
        "type": "power_in",
        "description": "+3.3V analog power supply; a 1.0 µF (<1 Ω ESR) capacitor to ground is required for regulator stability."
      },
      {
        "number": "13",
        "name": "SOF",
        "type": "output",
        "description": "Outputs an 8 kHz clock synchronized with the USB Host SOF, controlled by the SOF_ENABLE bit in the UTIL_CONFIG1 register."
      },
      {
        "number": "14",
        "name": "SUSPEND",
        "type": "output",
        "description": "Indicates the entire hub has entered USB suspend so VBUS current consumption should be reduced per the USB specification; must be enabled via the Protouch configuration tool."
      },
      {
        "number": "15",
        "name": "PRTPWR1/PRTCTL1",
        "type": "bidirectional",
        "description": "Port 1 power enable output (0 = power disabled, 1 = power enabled); when configured as PRTCTL1 it also serves as the Port 1 over-current sense input OCS1_N."
      },
      {
        "number": "16",
        "name": "OCS1_N",
        "type": "input",
        "description": "Active-low over-current sense input from an external current monitor indicating an over-current condition on USB Port 1; internal pull-up."
      },
      {
        "number": "17",
        "name": "VDDCR12",
        "type": "power_in",
        "description": "+1.2V core power supply; in single-supply or dual-supply configurations where 1.2V is not used, a 1.0 µF (<1 Ω ESR) capacitor to ground is required for regulator stability."
      },
      {
        "number": "18",
        "name": "VDD33",
        "type": "power_in",
        "description": "+3.3V power supply that must be connected to VDDA33."
      },
      {
        "number": "19",
        "name": "PRTPWR2/PRTCTL2",
        "type": "bidirectional",
        "description": "Port 2 power enable output (0 = power disabled, 1 = power enabled); when configured as PRTCTL2 it also serves as the Port 2 over-current sense input OCS2_N."
      },
      {
        "number": "20",
        "name": "OCS2_N",
        "type": "input",
        "description": "Active-low over-current sense input from an external current monitor indicating an over-current condition on USB Port 2; internal pull-up."
      },
      {
        "number": "21",
        "name": "PRTPWR3/PRTCTL3",
        "type": "bidirectional",
        "description": "Port 3 power enable output (0 = power disabled, 1 = power enabled); when configured as PRTCTL3 it also serves as the Port 3 over-current sense input OCS3_N."
      },
      {
        "number": "22",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "23",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "24",
        "name": "SPI_DI",
        "type": "input",
        "description": "SPI data input; internal pull-down enabled."
      },
      {
        "number": "25",
        "name": "SPI_CE_N",
        "type": "output",
        "description": "Active-low SPI chip enable output; driven high in powerdown states if SPI is enabled."
      },
      {
        "number": "26",
        "name": "SPI_DO/SPI_SPD_SEL",
        "type": "bidirectional",
        "description": "SPI data output (12 mA sink/source); the SPI_SPD_SEL configuration strap selects SPI speed at reset (0 = 30 MHz default, 1 = 60 MHz)."
      },
      {
        "number": "27",
        "name": "SPI_CLK",
        "type": "output",
        "description": "SPI clock output (12 mA sink/source)."
      },
      {
        "number": "28",
        "name": "UART_RX/OCS3_N",
        "type": "input",
        "description": "Internal UART receive input at 3.3V (RS232 operation requires an external 12V translator); also serves as active-low Port 3 over-current sense input OCS3_N."
      },
      {
        "number": "29",
        "name": "PRTPWR4/PRTCTL4",
        "type": "bidirectional",
        "description": "Port 4 power enable output (0 = power disabled, 1 = power enabled); when configured as PRTCTL4 it also serves as the Port 4 over-current sense input OCS4_N."
      },
      {
        "number": "30",
        "name": "UART_TX/OCS4_N",
        "type": "bidirectional",
        "description": "Internal UART transmit output at 3.3V (RS232 operation requires an external 12V driver); also serves as active-low Port 4 over-current sense input OCS4_N."
      },
      {
        "number": "31",
        "name": "SDA/SMBDATA",
        "type": "bidirectional",
        "description": "I2C bidirectional serial data (open-drain, 8 mA sink); also serves as SMBus bidirectional serial data."
      },
      {
        "number": "32",
        "name": "VDD33",
        "type": "power_in",
        "description": "+3.3V power supply that must be connected to VDDA33."
      },
      {
        "number": "33",
        "name": "SCL/SMBCLK",
        "type": "input",
        "description": "I2C serial clock input; also serves as SMBus serial clock input."
      },
      {
        "number": "34",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "35",
        "name": "RESET_N",
        "type": "input",
        "description": "Active-low system reset input; the active-low pulse must be at least 5 µs wide."
      },
      {
        "number": "36",
        "name": "VBUS_DET",
        "type": "input",
        "description": "Detects upstream bus power; on detachable hubs it must connect to upstream VBUS through a 50k/100k resistor divider to provide 3.3V."
      },
      {
        "number": "37",
        "name": "VDDA33",
        "type": "power_in",
        "description": "+3.3V analog power supply; a 1.0 µF (<1 Ω ESR) capacitor to ground is required for regulator stability."
      },
      {
        "number": "38",
        "name": "VDD12",
        "type": "power_in",
        "description": "+1.2V HSIC power supply input; for HSIC operation it must be tied to VDDCR12."
      },
      {
        "number": "39",
        "name": "FLEX_HSIC_UP_STROBE",
        "type": "bidirectional",
        "description": "Upstream HSIC Port 0 STROBE signal (can be optionally swapped with downstream Port 1 signals)."
      },
      {
        "number": "40",
        "name": "FLEX_USBUP_DM/PRT_DIS_M0",
        "type": "bidirectional",
        "description": "Upstream USB Port 0 D- data signal (can be optionally swapped with downstream Port 1); PRT_DIS_M0 and PRT_DIS_P0 must both be tied to VDD33 at reset to place Port 0 into HSIC mode."
      },
      {
        "number": "41",
        "name": "FLEX_USBUP_DP/PRT_DIS_P0",
        "type": "bidirectional",
        "description": "Upstream USB Port 0 D+ data signal (can be optionally swapped with downstream Port 1); PRT_DIS_P0 and PRT_DIS_M0 must both be tied to VDD33 at reset to place Port 0 into HSIC mode."
      },
      {
        "number": "42",
        "name": "FLEX_HSIC_UP_DATA",
        "type": "bidirectional",
        "description": "Upstream HSIC Port 0 DATA signal (can be optionally swapped with downstream Port 1 signals)."
      },
      {
        "number": "43",
        "name": "XTAL2",
        "type": "output",
        "description": "External 24 MHz crystal output; should be left unconnected when XTAL1/REFCLK is driven by a single-ended clock oscillator."
      },
      {
        "number": "44",
        "name": "XTAL1/REFCLK",
        "type": "input",
        "description": "External 24 MHz crystal input, or reference clock input that may be driven by a single-ended clock oscillator."
      },
      {
        "number": "45",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; must be left floating for normal device operation."
      },
      {
        "number": "46",
        "name": "RBIAS",
        "type": "passive",
        "description": "A 12.0k (+/- 1%) resistor attached from ground to this pin sets the transceiver's internal bias settings."
      },
      {
        "number": "47",
        "name": "VDDCOREREG",
        "type": "power_in",
        "description": "+1.8-3.3V core power supply input to the internal +1.2V regulator; may be tied to VDD33 for single-supply operation when VBAT equals +3.3V."
      },
      {
        "number": "48",
        "name": "VDDA33",
        "type": "power_in",
        "description": "+3.3V analog power supply; a 1.0 µF (<1 Ω ESR) capacitor to ground is required for regulator stability."
      },
      {
        "number": "49",
        "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: The exposed thermal pad on the package bottom is common ground VSS (Figure 3-1, Table 3-1) but the d; Pin names for pins 3 and 4 differ between the pin assignment table (USBDN1_DM/PRT_DIS_M1, USBDN1_DP/; Multi-function pins are typed by their combined function, e.g. PRTPWR/PRTCTL and SPI_DO/SPI_SPD_SEL ",
          "exposed pad 49 added from the footprint",
          "14/49 pins cited to the wrong page (name found elsewhere): ['16:OCS1_N@p11', '20:OCS2_N@p11', '25:SPI_CE_N@p11', '26:SPI_DO/SPI_SPD_SEL@p11']"
        ],
        "pages_sent": 23,
        "cost_usd": 0.1482,
        "at": "2026-10-30T18:22:41"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/fe674717d0059b90aca004d43843e5e1.pdf",
        "pages": 55,
        "sha256": "c71c99d8530091c2",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "usb4604-1080hn.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "usb4604-1080hn-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a1050f6c1e69a46bb2ad8d4cdf26ce15696786f682f3d49e2ff976f5a325702b",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}