USB5734T-I

{
  "schema_version": 1,
  "type": "component",
  "slug": "usb5734t-i",
  "title": "USB5734T-I",
  "brief": "Microchip Tech USB ICs, QFN-64-EP(9x9). 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",
    "communication interface chip-uart-485-232",
    "usb5734t-i",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "USB5734T-I",
    "manufacturer": "Microchip Tech",
    "package": "QFN-64-EP(9x9)",
    "pin_count": 65,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "USB ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/abefb08fd8da21a636daa55bc141432d.pdf",
    "parts": {
      "symbol": "usb5734t-i.kicad_sym",
      "footprint": "usb5734t-i.kicad_mod",
      "model_3d": "usb5734t-i-hero.glb",
      "model_3d_plain": "usb5734t-i-etched.glb",
      "model_3d_step": "usb5734t-i-etched.step",
      "model_3d_step_plain": "usb5734t-i.step",
      "lbr": "usb5734t-i.lbr"
    },
    "distributor_links": {
      "lcsc": "C626709"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T16:24:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CFG_STRAP",
        "type": "input",
        "description": "Device mode configuration strap, latched at POR and RESET_N rising edge, where an external resistor selects one of six modes."
      },
      {
        "number": "2",
        "name": "USB2DN_DP1/PRT_DIS_P1",
        "type": "bidirectional",
        "description": "USB 2.0 downstream port 1 D+ data line, also the port 1 D+ disable strap that must be tied to 3.3 V with PRT_DIS_M1 to disable the port."
      },
      {
        "number": "3",
        "name": "USB2DN_DM1/PRT_DIS_M1",
        "type": "bidirectional",
        "description": "USB 2.0 downstream port 1 D- data line, also the port 1 D- disable strap used with PRT_DIS_P1."
      },
      {
        "number": "4",
        "name": "USB3DN_TXDP1",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 1 SuperSpeed transmit data plus, leave floating if unused."
      },
      {
        "number": "5",
        "name": "USB3DN_TXDM1",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 1 SuperSpeed transmit data minus, leave floating if unused."
      },
      {
        "number": "6",
        "name": "VDD12",
        "type": "power_in",
        "description": "+1.2 V core power supply pin."
      },
      {
        "number": "7",
        "name": "USB3DN_RXDP1",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 1 SuperSpeed receive data plus, leave floating if unused."
      },
      {
        "number": "8",
        "name": "USB3DN_RXDM1",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 1 SuperSpeed receive data minus, leave floating if unused."
      },
      {
        "number": "9",
        "name": "USB2DN_DP2/PRT_DIS_P2",
        "type": "bidirectional",
        "description": "USB 2.0 downstream port 2 D+ data line, also the port 2 D+ disable strap used with PRT_DIS_M2."
      },
      {
        "number": "10",
        "name": "USB2DN_DM2/PRT_DIS_M2",
        "type": "bidirectional",
        "description": "USB 2.0 downstream port 2 D- data line, also the port 2 D- disable strap used with PRT_DIS_P2."
      },
      {
        "number": "11",
        "name": "USB3DN_TXDP2",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 2 SuperSpeed transmit data plus, leave floating if unused."
      },
      {
        "number": "12",
        "name": "USB3DN_TXDM2",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 2 SuperSpeed transmit data minus, leave floating if unused."
      },
      {
        "number": "13",
        "name": "VDD12",
        "type": "power_in",
        "description": "+1.2 V core power supply pin."
      },
      {
        "number": "14",
        "name": "USB3DN_RXDP2",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 2 SuperSpeed receive data plus, leave floating if unused."
      },
      {
        "number": "15",
        "name": "USB3DN_RXDM2",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 2 SuperSpeed receive data minus, leave floating if unused."
      },
      {
        "number": "16",
        "name": "PROG_FUNC7",
        "type": "bidirectional",
        "description": "Programmable function pin 7, whose function is set by CFG_STRAP (USB2_SUSP_IND in Configuration 1), with an O10 buffer of 10 mA sink and source."
      },
      {
        "number": "17",
        "name": "VDD12",
        "type": "power_in",
        "description": "+1.2 V core power supply pin."
      },
      {
        "number": "18",
        "name": "VDD33",
        "type": "power_in",
        "description": "+3.3 V power and internal regulator input."
      },
      {
        "number": "19",
        "name": "USB2DN_DP3/PRT_DIS_P3",
        "type": "bidirectional",
        "description": "USB 2.0 downstream port 3 D+ data line, also the port 3 D+ disable strap used with PRT_DIS_M3."
      },
      {
        "number": "20",
        "name": "USB2DN_DM3/PRT_DIS_M3",
        "type": "bidirectional",
        "description": "USB 2.0 downstream port 3 D- data line, also the port 3 D- disable strap used with PRT_DIS_P3."
      },
      {
        "number": "21",
        "name": "USB3DN_TXDP3",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 3 SuperSpeed transmit data plus, leave floating if unused."
      },
      {
        "number": "22",
        "name": "USB3DN_TXDM3",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 3 SuperSpeed transmit data minus, leave floating if unused."
      },
      {
        "number": "23",
        "name": "VDD12",
        "type": "power_in",
        "description": "+1.2 V core power supply pin."
      },
      {
        "number": "24",
        "name": "USB3DN_RXDP3",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 3 SuperSpeed receive data plus, leave floating if unused."
      },
      {
        "number": "25",
        "name": "USB3DN_RXDM3",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 3 SuperSpeed receive data minus, leave floating if unused."
      },
      {
        "number": "26",
        "name": "USB2DN_DP4/PRT_DIS_P4",
        "type": "bidirectional",
        "description": "USB 2.0 downstream port 4 D+ data line, also the port 4 D+ disable strap used with PRT_DIS_M4."
      },
      {
        "number": "27",
        "name": "USB2DN_DM4/PRT_DIS_M4",
        "type": "bidirectional",
        "description": "USB 2.0 downstream port 4 D- data line, also the port 4 D- disable strap used with PRT_DIS_P4."
      },
      {
        "number": "28",
        "name": "USB3DN_TXDP4",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 4 SuperSpeed transmit data plus, leave floating if unused."
      },
      {
        "number": "29",
        "name": "USB3DN_TXDM4",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 4 SuperSpeed transmit data minus, leave floating if unused."
      },
      {
        "number": "30",
        "name": "VDD12",
        "type": "power_in",
        "description": "+1.2 V core power supply pin."
      },
      {
        "number": "31",
        "name": "USB3DN_RXDP4",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 4 SuperSpeed receive data plus, leave floating if unused."
      },
      {
        "number": "32",
        "name": "USB3DN_RXDM4",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 downstream port 4 SuperSpeed receive data minus, leave floating if unused."
      },
      {
        "number": "33",
        "name": "VDD33",
        "type": "power_in",
        "description": "+3.3 V power and internal regulator input."
      },
      {
        "number": "34",
        "name": "PRT_CTL4/GANG_PWR",
        "type": "input",
        "description": "Port 4 power enable and overcurrent sense; when pulled high it enables gang mode with GANG_PWR as the gang power pin."
      },
      {
        "number": "35",
        "name": "VDD12",
        "type": "power_in",
        "description": "+1.2 V core power supply pin."
      },
      {
        "number": "36",
        "name": "PRT_CTL3",
        "type": "input",
        "description": "Port 3 power enable (active high output) and overcurrent sense input from an external current monitor, leave floating if unused."
      },
      {
        "number": "37",
        "name": "PRT_CTL2",
        "type": "input",
        "description": "Port 2 power enable (active high output) and overcurrent sense input from an external current monitor, leave floating if unused."
      },
      {
        "number": "38",
        "name": "PRT_CTL1",
        "type": "input",
        "description": "Port 1 power enable (active high output) and overcurrent sense input from an external current monitor, leave floating if unused."
      },
      {
        "number": "39",
        "name": "PROG_FUNC2",
        "type": "bidirectional",
        "description": "Programmable function pin 2, whose function is set by CFG_STRAP, with an O6 buffer of 6 mA sink and source."
      },
      {
        "number": "40",
        "name": "PROG_FUNC3",
        "type": "bidirectional",
        "description": "Programmable function pin 3, whose function is set by CFG_STRAP, with an I/O12 buffer of 12 mA sink and source."
      },
      {
        "number": "41",
        "name": "VBUS_DET/GPIO16",
        "type": "input",
        "description": "Detects upstream bus power; must be connected to VBUS through a 50 k/100 k divider to provide 3.3 V on a detachable hub."
      },
      {
        "number": "42",
        "name": "SPI_CLK/UART_RX/GPIO4/I2C_SLV_CFG0",
        "type": "bidirectional",
        "description": "SPI clock output to the serial ROM (O6), UART receive in UART mode, GPIO4, and I2C slave 0 configuration strap."
      },
      {
        "number": "43",
        "name": "SPI_DO/UART_TX/GPIO5/I2C_SLV_CFG1",
        "type": "bidirectional",
        "description": "SPI data output (O6), UART transmit (O12), GPIO5, and I2C slave 1 configuration strap, with a 10 k pull-down selecting UART mode."
      },
      {
        "number": "44",
        "name": "SPI_DI/GPIO9/CFG_BC_EN",
        "type": "bidirectional",
        "description": "SPI data input (Schmitt-triggered), GPIO9 (I/O12), and battery charging configuration strap CFG_BC_EN."
      },
      {
        "number": "45",
        "name": "SPI_CE_N/GPIO7/CFG_NON_REM",
        "type": "bidirectional",
        "description": "Active low SPI chip enable output (O12), GPIO7, and non-removable port configuration strap CFG_NON_REM."
      },
      {
        "number": "46",
        "name": "PROG_FUNC4",
        "type": "bidirectional",
        "description": "Programmable function pin 4, which is SMDAT (OD12) in Configurations 1, 2, 3 and 6, with an I/O12 buffer of 12 mA."
      },
      {
        "number": "47",
        "name": "PROG_FUNC5",
        "type": "bidirectional",
        "description": "Programmable function pin 5, which is SMCLK (OD12) in Configurations 1, 2, 3 and 6, with an I/O12 buffer of 12 mA."
      },
      {
        "number": "48",
        "name": "RESET_N",
        "type": "input",
        "description": "Active low reset input (Schmitt-triggered) that puts the device into Standby Mode and latches configuration straps on its rising edge."
      },
      {
        "number": "49",
        "name": "PROG_FUNC6",
        "type": "bidirectional",
        "description": "Programmable function pin 6, whose function is set by CFG_STRAP, with an I/O12 buffer of 12 mA sink and source."
      },
      {
        "number": "50",
        "name": "PROG_FUNC1",
        "type": "bidirectional",
        "description": "Programmable function pin 1, whose function is set by CFG_STRAP, with an I/O12 buffer of 12 mA sink and source."
      },
      {
        "number": "51",
        "name": "VDD12",
        "type": "power_in",
        "description": "+1.2 V core power supply pin."
      },
      {
        "number": "52",
        "name": "VDD33",
        "type": "power_in",
        "description": "+3.3 V power and internal regulator input."
      },
      {
        "number": "53",
        "name": "USB2UP_DP",
        "type": "bidirectional",
        "description": "USB 2.0 upstream data plus (D+) with internal 1M pull-down."
      },
      {
        "number": "54",
        "name": "USB2UP_DM",
        "type": "bidirectional",
        "description": "USB 2.0 upstream data minus (D-) with internal 1M pull-down."
      },
      {
        "number": "55",
        "name": "USB3UP_TXDP",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 upstream SuperSpeed transmit data plus."
      },
      {
        "number": "56",
        "name": "USB3UP_TXDM",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 upstream SuperSpeed transmit data minus."
      },
      {
        "number": "57",
        "name": "VDD12",
        "type": "power_in",
        "description": "+1.2 V core power supply pin."
      },
      {
        "number": "58",
        "name": "USB3UP_RXDP",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 upstream SuperSpeed receive data plus."
      },
      {
        "number": "59",
        "name": "USB3UP_RXDM",
        "type": "bidirectional",
        "description": "USB 3.2 Gen 1 upstream SuperSpeed receive data minus."
      },
      {
        "number": "60",
        "name": "ATEST",
        "type": "passive",
        "description": "Analog test pin that must always be connected to ground."
      },
      {
        "number": "61",
        "name": "XTALO",
        "type": "output",
        "description": "External 25 MHz crystal output, left unconnected when an external clock oscillator drives XTALI/CLK_IN."
      },
      {
        "number": "62",
        "name": "XTALI/CLK_IN",
        "type": "input",
        "description": "External 25 MHz crystal input, or external reference clock input from a single-ended clock oscillator."
      },
      {
        "number": "63",
        "name": "VDD33",
        "type": "power_in",
        "description": "+3.3 V power and internal regulator input."
      },
      {
        "number": "64",
        "name": "RBIAS",
        "type": "passive",
        "description": "A 12.0 k (+/- 1%) resistor is attached from ground to this pin to set the transceiver internal bias."
      },
      {
        "number": "65",
        "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 datasheet calls this the 64-VQFN (9x9 mm) package, option MR, with an exposed pad (Table 3-1 and"
        ],
        "pages_sent": 37,
        "cost_usd": 0.07,
        "at": "2026-10-28T16:23:44"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/abefb08fd8da21a636daa55bc141432d.pdf",
        "pages": 61,
        "sha256": "46a04562738d5cf2",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 65,
        "described": 65,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "usb5734t-i.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          0.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dce07a86ec3fe3ca87eebdff13827f55e036ced5518fee01f85cec4a3f56366d",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "usb5734t-i-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          0.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a69af15698debb53d1c8e9a8a4adbc9d1fa7713188c028842b36590b97f27603",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "QFN-64-EP(9x9)",
      "Category": "Communication Interface Chip/UART/485/232",
      "Pins": "65"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "46a04562738d5cf2a250bb7f327fc627e3341e150ee951fd190f9ce9252b7514",
      "rows": [
        {
          "name": "Ambient operating temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Industrial version (-I), Note 3",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "+1.2 V supply voltage",
          "symbol": "VDD12",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.08,
          "typ": null,
          "max": 1.32,
          "conditions": "",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "+3.3 V supply voltage",
          "symbol": "VDD33",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "Input signal pins voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "Note 2",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "XTALI/CLK_IN voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "USB 2.0 DP/DM signal pins voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "USB 3.2 Gen 1 USB3UP_xxxx and USB3DN_xxxx signal pins voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 1.32,
          "conditions": "",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "+1.2 V supply voltage rise time",
          "symbol": "TRT",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Figure 10-1",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "+3.3 V supply voltage rise time",
          "symbol": "TRT",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Figure 10-1",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "+1.2 V supply voltage (VDD12) absolute maximum",
          "symbol": "VDD12",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 1.32,
          "conditions": "Note 1",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "+3.3 V supply voltage (VDD33) absolute maximum",
          "symbol": "VDD33",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 4.6,
          "conditions": "Note 1",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "Positive voltage on input signal pins, with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 4.6,
          "conditions": "Note 2",
          "source_page": 42,
          "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": "",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "Positive voltage on XTALI/CLK_IN, with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.63,
          "conditions": "",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "Positive voltage on USB DP/DM signal pins, with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 42,
          "source": "datasheet"
        },
        {
          "name": "Positive voltage on USB 3.2 Gen 1 USB3UP_xxxx and USB3DN_xxxx signal pins, with respect to ground",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.32,
          "conditions": "",
          "source_page": 42,
          "source": "datasheet"
        },
        {
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