USB4604I-1080HN

{
  "schema_version": 1,
  "type": "component",
  "slug": "usb4604i-1080hn",
  "title": "USB4604I-1080HN",
  "brief": "Microchip Tech USB ICs, VQFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface ics",
    "usb4604i-1080hn",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "USB4604I-1080HN",
    "manufacturer": "Microchip Tech",
    "package": "VQFN-48-EP(7x7)",
    "pin_count": 49,
    "category": "Interface ICs",
    "subcategory": "USB ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/fe674717d0059b90aca004d43843e5e1.pdf",
    "parts": {
      "symbol": "usb4604i-1080hn.kicad_sym",
      "footprint": "usb4604i-1080hn.kicad_mod",
      "model_3d": "usb4604i-1080hn-hero.glb",
      "model_3d_plain": "usb4604i-1080hn-etched.glb",
      "model_3d_step": "usb4604i-1080hn-etched.step",
      "model_3d_step_plain": "usb4604i-1080hn.step",
      "lbr": "usb4604i-1080hn.lbr"
    },
    "distributor_links": {
      "lcsc": "C633603",
      "digikey": "USB4604I-1080HN-ND",
      "mouser": "579-USB4604I-1080HN"
    },
    "distributor_check": {
      "checked_at": "2026-11-09T06:17:38Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "USB4604I-1080HN-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "579-USB4604I-1080HN",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Battery power supply input that feeds the internal 3.3V regulator and needs a 4.7 uF (<1 ohm ESR) capacitor to ground placed close to the device."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect pin that must be left floating for normal device operation."
      },
      {
        "number": "3",
        "name": "USBDN1_DM/PRT_DIS_M1",
        "type": "bidirectional",
        "description": "Downstream USB Port 1 D- data signal (swappable with upstream Port 0) that also serves as the Port 1 D- disable strap, which must be tied to VDD33 together with PRT_DIS_P1 at reset to disable the port."
      },
      {
        "number": "4",
        "name": "USBDN1_DP/PRT_DIS_P1",
        "type": "bidirectional",
        "description": "Downstream USB Port 1 D+ data signal (swappable with upstream Port 0) that also serves as the Port 1 D+ disable strap, which must be tied to VDD33 together with PRT_DIS_M1 at reset to disable the port."
      },
      {
        "number": "5",
        "name": "USBDN2_DM/PRT_DIS_M2",
        "type": "bidirectional",
        "description": "Downstream USB Port 2 D- data signal that also serves as the Port 2 D- disable strap, which must be tied to VDD33 together with PRT_DIS_P2 at reset to disable the port."
      },
      {
        "number": "6",
        "name": "USBDN2_DP/PRT_DIS_P2",
        "type": "bidirectional",
        "description": "Downstream USB Port 2 D+ data signal that also serves as the Port 2 D+ disable strap, which must be tied to VDD33 together with PRT_DIS_M2 at reset to disable the port."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect pin that 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 that also serves as the Port 3 D- disable strap, which must be tied to VDD33 together with PRT_DIS_P3 at reset to disable the port."
      },
      {
        "number": "9",
        "name": "USBDN3_DP/PRT_DIS_P3",
        "type": "bidirectional",
        "description": "Downstream USB Port 3 D+ data signal that also serves as the Port 3 D+ disable strap, which must be tied to VDD33 together with PRT_DIS_M3 at reset to disable the port."
      },
      {
        "number": "10",
        "name": "USBDN4_DM/PRT_DIS_M4",
        "type": "bidirectional",
        "description": "Downstream USB Port 4 D- data signal that also serves as the Port 4 D- disable strap, which must be tied to VDD33 together with PRT_DIS_P4 at reset to disable the port."
      },
      {
        "number": "11",
        "name": "USBDN4_DP/PRT_DIS_P4",
        "type": "bidirectional",
        "description": "Downstream USB Port 4 D+ data signal that also serves as the Port 4 D+ disable strap, which must be tied to VDD33 together with PRT_DIS_M4 at reset to disable the port."
      },
      {
        "number": "12",
        "name": "VDDA33",
        "type": "power_in",
        "description": "+3.3V analog power supply that needs a 1.0 uF (<1 ohm ESR) capacitor to ground placed close to the device."
      },
      {
        "number": "13",
        "name": "SOF",
        "type": "output",
        "description": "O8 output (8 mA sink and source) of an 8KHz 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 that the entire hub has entered the USB suspend state so VBUS current consumption should be reduced, and must be enabled via the Protouch configuration tool."
      },
      {
        "number": "15",
        "name": "PRTPWR1/PRTCTL1",
        "type": "bidirectional",
        "description": "O8 Port 1 power enable output (0 = power disabled, 1 = power enabled) that, when configured as PRTCTL1 (OD8/IS with pull-up), combines the power enable output and the over-current sense input."
      },
      {
        "number": "16",
        "name": "OCS1_N",
        "type": "input",
        "description": "Active-low Schmitt input with internal pull-up from an external current monitor indicating an over-current condition on USB Port 1."
      },
      {
        "number": "17",
        "name": "VDDCR12",
        "type": "power_in",
        "description": "+1.2V core power supply that needs a 1.0 uF (<1 ohm ESR) capacitor to ground in single supply applications or dual supply applications where 1.2V is not used."
      },
      {
        "number": "18",
        "name": "VDD33",
        "type": "power_in",
        "description": "+3.3V power supply pin that must be connected to VDDA33."
      },
      {
        "number": "19",
        "name": "PRTPWR2/PRTCTL2",
        "type": "bidirectional",
        "description": "O8 Port 2 power enable output (0 = power disabled, 1 = power enabled) that, when configured as PRTCTL2 (OD8/IS with pull-up), combines the power enable output and the over-current sense input."
      },
      {
        "number": "20",
        "name": "OCS2_N",
        "type": "input",
        "description": "Active-low Schmitt input with internal pull-up from an external current monitor indicating an over-current condition on USB Port 2."
      },
      {
        "number": "21",
        "name": "PRTPWR3/PRTCTL3",
        "type": "bidirectional",
        "description": "O8 Port 3 power enable output (0 = power disabled, 1 = power enabled) that, when configured as PRTCTL3 (OD8/IS with pull-up), combines the power enable output and the over-current sense input."
      },
      {
        "number": "22",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect pin that must be left floating for normal device operation."
      },
      {
        "number": "23",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect pin that must be left floating for normal device operation."
      },
      {
        "number": "24",
        "name": "SPI_DI",
        "type": "input",
        "description": "SPI data input with a 50 uA (typical) internal pull-down."
      },
      {
        "number": "25",
        "name": "SPI_CE_N",
        "type": "output",
        "description": "Active-low SPI chip enable output (O12, 12 mA sink and source) that is driven high in powerdown states if the SPI is enabled."
      },
      {
        "number": "26",
        "name": "SPI_DO/SPI_SPD_SEL",
        "type": "output",
        "description": "SPI data output (O12) that also latches the SPI speed strap at reset (0 = 30MHz default, 1 = 60MHz) with a 50 uA (typical) internal pull-down."
      },
      {
        "number": "27",
        "name": "SPI_CLK",
        "type": "output",
        "description": "SPI clock output (O12, 12 mA sink and source)."
      },
      {
        "number": "28",
        "name": "UART_RX/OCS3_N",
        "type": "input",
        "description": "Internal UART receive input (3.3V signal, external 12V translator required for RS232) shared with the active-low Port 3 over-current sense input with internal pull-up."
      },
      {
        "number": "29",
        "name": "PRTPWR4/PRTCTL4",
        "type": "bidirectional",
        "description": "O8 Port 4 power enable output (0 = power disabled, 1 = power enabled) that, when configured as PRTCTL4 (OD8/IS with pull-up), combines the power enable output and the over-current sense input."
      },
      {
        "number": "30",
        "name": "UART_TX/OCS4_N",
        "type": "bidirectional",
        "description": "Internal UART transmit output (O8, 3.3V signal, external 12V driver required for RS232) shared with the active-low Port 4 over-current sense input with internal pull-up."
      },
      {
        "number": "31",
        "name": "SDA/SMBDATA",
        "type": "bidirectional",
        "description": "I2C or SMBus bidirectional serial data (IS/OD8 buffer, 8 mA open-drain sink)."
      },
      {
        "number": "32",
        "name": "VDD33",
        "type": "power_in",
        "description": "+3.3V power supply pin that must be connected to VDDA33."
      },
      {
        "number": "33",
        "name": "SCL/SMBCLK",
        "type": "input",
        "description": "I2C serial clock input or SMBus serial clock input (I_SMB buffer)."
      },
      {
        "number": "34",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect pin that must be left floating for normal device operation."
      },
      {
        "number": "35",
        "name": "RESET_N",
        "type": "input",
        "description": "Active-low system reset input that requires a pulse at least 5us wide to reset the device."
      },
      {
        "number": "36",
        "name": "VBUS_DET",
        "type": "input",
        "description": "Detects the state of upstream bus power and must be connected through a resistor divider (50k by 100k) to provide 3.3V when designing a detachable hub."
      },
      {
        "number": "37",
        "name": "VDDA33",
        "type": "power_in",
        "description": "+3.3V analog power supply that needs a 1.0 uF (<1 ohm ESR) capacitor to ground placed close to the device."
      },
      {
        "number": "38",
        "name": "VDD12",
        "type": "power_in",
        "description": "+1.2V HSIC power supply input, tied to VDDCR12 for HSIC operation."
      },
      {
        "number": "39",
        "name": "FLEX_HSIC_UP_STROBE",
        "type": "bidirectional",
        "description": "Upstream HSIC Port 0 STROBE signal, which can optionally be swapped with the downstream Port 1 signals."
      },
      {
        "number": "40",
        "name": "FLEX_USBUP_DM/PRT_DIS_M0",
        "type": "bidirectional",
        "description": "Upstream USB Port 0 D- data signal (swappable with downstream Port 1) that also serves as the Port 0 D- disable strap, with both PRT_DIS_P0 and PRT_DIS_M0 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 (swappable with downstream Port 1) that also serves as the Port 0 D+ disable strap, with both PRT_DIS_P0 and PRT_DIS_M0 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, which can optionally be swapped with the downstream Port 1 signals."
      },
      {
        "number": "43",
        "name": "XTAL2",
        "type": "output",
        "description": "External 24 MHz crystal output, 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 single-ended reference clock input."
      },
      {
        "number": "45",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect pin that must be left floating for normal device operation."
      },
      {
        "number": "46",
        "name": "RBIAS",
        "type": "passive",
        "description": "A 12.0k (+/-1%) resistor 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, which needs a 4.7 uF (<1 ohm ESR) capacitor to ground in dual supply configurations."
      },
      {
        "number": "48",
        "name": "VDDA33",
        "type": "power_in",
        "description": "+3.3V analog power supply that needs a 1.0 uF (<1 ohm ESR) capacitor to ground placed close to the device."
      },
      {
        "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-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet package is 48-pin SQFN 7x7; the VQFN-48-EP hint is assumed equivalent. The exposed pad has; Table 3-2 names pins 3/4 USBDN1_*, while Figure 3-1 and Table 3-1 use SWAP_USBDN1_*. Table 3-2 namin; The datasheet gives VDDCR12 buffer type 'P' without saying input or output. It was typed power_out b",
          "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": 0.1858,
        "at": "2026-11-09T06:17:26"
      },
      "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": "usb4604i-1080hn.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7,
          7,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
        "checked": "2026-11-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "usb4604i-1080hn-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7,
          7,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "50e837ead3198662d2381be93dae0b55a714c3e009bdaa09f4eb370ec80a19fd",
        "checked": "2026-11-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "VQFN-48-EP(7x7)",
      "Category": "Interface ICs",
      "Pins": "49"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c71c99d8530091c2c7f0a0ea68e4b3d1ea176af3138d1a9e177961c3c24606f3",
      "rows": [
        {
          "name": "VBAT Supply Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 5.5,
          "conditions": "Note 9-1",
          "source_page": 39,
          "source": "datasheet"
        },
        {
          "name": "VDDCOREREG Supply Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 3.6,
          "conditions": "Note 9-1",
          "source_page": 39,
          "source": "datasheet"
        },
        {
          "name": "Positive voltage on input signal pins, with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.6,
          "conditions": "Note 9-2",
          "source_page": 39,
          "source": "datasheet"
        },
        {
          "name": "Negative voltage on input signal pins, with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "Note 9-3",
          "source_page": 39,
          "source": "datasheet"
        },
        {
          "name": "Positive voltage on USB DP/DM signals, with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5.5,
          "conditions": "Note 9-4, applies only when VDD33 is powered",
          "source_page": 39,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "oC",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 39,
          "source": "datasheet"
        },
        {
          "name": "VBAT Supply Voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 40,
          "source": "datasheet"
        },
        {
          "name": "VDDCOREREG Supply Voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.6,
          "typ": null,
          "max": 2,
          "conditions": "Note 9-5, connected to external +1.8V power supply",
          "source_page": 40,
          "source": "datasheet"
        },
        {
          "name": "VDDCOREREG Supply Voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 3.6,
          "conditions": "Note 9-5, connected to VDD33",
          "source_page": 40,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rise Time",
          "symbol": "tRT(max)",
          "kind": "recommended_operating",
          "unit": "ms",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "RESET_N asserted at power-on (Note 9-6)",
          "source_page": 40,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Rise Time",
          "symbol": "tRT(max)",
          "kind": "recommended_operating",
          "unit": "ms",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "RESET_N not used at power-on, tied high (Note 9-6)",
          "source_page": 40,
          "source": "datasheet"
        },
        {
          "name": "Ambient Operating Temperature in Still Air",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "oC",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Industrial version (Note 9-7)",
          "source_page": 40,
          "source": "datasheet"
        },
        {
          "name": "Suspend supply current, single supply, USB upstream",
          "symbol": "IVBAT",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 320,
          "max": 2000,
          "conditions": "Suspend; typical @ 25oC, industrial MAX",
          "source_page": 41,
          "source": "datasheet"
        },
        {
          "name": "Standby supply current, single supply, USB upstream",
          "symbol": "IVBAT",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.4,
          "max": 2.4,
          "conditions": "Standby; typical @ 25oC, industrial MAX",
          "source_page": 41,
          "source": "datasheet"
        },
        {
          "name": "Low Input Level",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.8,
          "conditions": "IS type input buffer",
          "source_page": 44,
          "source": "datasheet"
        },
        {
          "name": "High Input Level",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 3.6,
          "conditions": "IS type input buffer",
          "source_page": 44,
          "source": "datasheet"
        },
        {
          "name": "Low Input Level",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.4,
          "conditions": "I_RST type input buffer",
          "source_page": 44,
          "source": "datasheet"
        },
        {
          "name": "High Input Level",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.25,
          "typ": null,
          "max": 3.6,
          "conditions": "I_RST type input buffer",
          "source_page": 44,
          "source": "datasheet"
        },
        {
          "name": "Low Input Level",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.35,
          "conditions": "I_SMB type input buffer",
          "source_page": 44,
          "source": "datasheet"
        },
        {
          "name": "Low Output Level",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
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