USB2422-I

{
  "schema_version": 1,
  "type": "component",
  "slug": "usb2422-i",
  "title": "USB2422-I",
  "brief": "Microchip Tech USB ICs, QFN-24-EP(4x4). 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",
    "usb2422-i",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "USB2422-I",
    "manufacturer": "Microchip Tech",
    "package": "QFN-24-EP(4x4)",
    "pin_count": 25,
    "category": "Interface ICs",
    "subcategory": "USB ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/e19ca2e6f5eb6f7aee1006b1c22efab4.pdf",
    "parts": {
      "symbol": "usb2422-i.kicad_sym",
      "footprint": "usb2422-i.kicad_mod",
      "model_3d": "usb2422-i-hero.glb",
      "model_3d_plain": "usb2422-i-etched.glb",
      "model_3d_step": "usb2422-i-etched.step",
      "model_3d_step_plain": "usb2422-i.step",
      "lbr": "usb2422-i.lbr"
    },
    "distributor_links": {
      "lcsc": "C220747"
    },
    "distributor_check": {
      "checked_at": "2026-10-29T03:48:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3 V power to the chip; a 0.1 µF low-ESR capacitor to VSS is required as close as possible to the pin."
      },
      {
        "number": "2",
        "name": "USBDM_DN1/PRT_DIS_M1",
        "type": "bidirectional",
        "description": "Downstream port 1 Hi-Speed USB data minus, also port disable strap sampled at RESET_N negation (both port data pins tied to VDD33 disable the port)."
      },
      {
        "number": "3",
        "name": "USBDP_DN1/PRT_DIS_P1",
        "type": "bidirectional",
        "description": "Downstream port 1 Hi-Speed USB data plus, also port disable strap sampled at RESET_N negation (both port data pins tied to VDD33 disable the port)."
      },
      {
        "number": "4",
        "name": "USBDM_DN2/PRT_DIS_M2",
        "type": "bidirectional",
        "description": "Downstream port 2 Hi-Speed USB data minus, also port disable strap sampled at RESET_N negation (both port data pins tied to VDD33 disable the port)."
      },
      {
        "number": "5",
        "name": "USBDP_DN2/PRT_DIS_P2",
        "type": "bidirectional",
        "description": "Downstream port 2 Hi-Speed USB data plus, also port disable strap sampled at RESET_N negation (both port data pins tied to VDD33 disable the port)."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "Treat as a no-connect pin or connect to ground; no trace or signal should be routed or attached to it."
      },
      {
        "number": "7",
        "name": "PRTPWR1/BC_EN1",
        "type": "output",
        "description": "Port 1 USB power enable (O12, active-high power controllers only); also battery charging strap (internal pull-down) sampled at RESET_N negation, 1 enables battery charging on port 1."
      },
      {
        "number": "8",
        "name": "OCS1_N",
        "type": "input",
        "description": "Port 1 over-current sense input from external current monitor, with internal pull-up to the 3.3 V supply."
      },
      {
        "number": "9",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3 V power to the chip; a 1.0 µF low-ESR capacitor to VSS is required as close as possible to the pin."
      },
      {
        "number": "10",
        "name": "CRFILT",
        "type": "passive",
        "description": "Core regulator filter capacitor pin; requires a 1.0 µF low-ESR capacitor to VSS."
      },
      {
        "number": "11",
        "name": "PRTPWR2",
        "type": "output",
        "description": "Port 2 USB power enable (O12, active-high power controllers only)."
      },
      {
        "number": "12",
        "name": "OCS2_N",
        "type": "input",
        "description": "Port 2 over-current sense input from external current monitor, with internal pull-up to the 3.3 V supply."
      },
      {
        "number": "13",
        "name": "SMBDATA/NON_REM1",
        "type": "bidirectional",
        "description": "SMBus data (I/OSD12), also non-removable port strap NON_REM1 sampled with NON_REM0 at RESET_N negation."
      },
      {
        "number": "14",
        "name": "SMBCLK/CFG_SEL0",
        "type": "bidirectional",
        "description": "SMBus clock (I/OSD12), also configuration select latched on RESET_N negation: 0 = default strap configuration, 1 = configured over SMBus."
      },
      {
        "number": "15",
        "name": "RESET_N",
        "type": "input",
        "description": "Schmitt-trigger reset input, active low; the minimum active low pulse is 1 µs."
      },
      {
        "number": "16",
        "name": "VBUS_DET",
        "type": "input",
        "description": "Detects upstream VBUS power to decide when to assert the internal D+ pull-up; connect to VBUS via a 2:1 divider (two 100 kΩ suggested) or to a host control output/VDD33 for self-powered use."
      },
      {
        "number": "17",
        "name": "SUSP_IND/LOCAL_PWR/NON_REM0",
        "type": "bidirectional",
        "description": "Suspend indicator (I/O12) or local power input when configured via SMBus, and non-removable strap NON_REM0 sampled at RESET_N negation; never tie directly to VDD33."
      },
      {
        "number": "18",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3 V power to the chip."
      },
      {
        "number": "19",
        "name": "USBDM_UP",
        "type": "bidirectional",
        "description": "Upstream USB data minus; connect to the upstream USB bus (host, port, or upstream hub)."
      },
      {
        "number": "20",
        "name": "USBDP_UP",
        "type": "bidirectional",
        "description": "Upstream USB data plus; connect to the upstream USB bus (host, port, or upstream hub)."
      },
      {
        "number": "21",
        "name": "XTALOUT",
        "type": "output",
        "description": "Crystal output with 1.2 V p-p and weak (<1 mA) drive; leave unconnected when an external clock drives XTALIN/CLKIN."
      },
      {
        "number": "22",
        "name": "XTALIN/CLKIN",
        "type": "input",
        "description": "24 MHz crystal terminal or external 24 MHz clock input when no crystal is used."
      },
      {
        "number": "23",
        "name": "PLLFILT",
        "type": "passive",
        "description": "PLL regulator filter capacitor pin; can have up to a 0.1 µF low-ESR capacitor to VSS or be left unconnected."
      },
      {
        "number": "24",
        "name": "RBIAS",
        "type": "passive",
        "description": "USB transceiver bias; a 12.0 kΩ (+/-1%) resistor is attached from ground to this pin."
      },
      {
        "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-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The garbled pin figure and the Table 2-2 pin-number grouping do not give an unambiguous pin-to-signa; The exposed thermal pad is described as 'Thermal Slug' / 'Ground Pad/ePad' and is not given a printe; The datasheet does not give a KiCad ERC class for CRFILT and PLLFILT. They are regulator filter capa",
          "exposed pad 25 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 18,
        "cost_usd": 0.0932,
        "at": "2026-10-29T03:47:54"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/e19ca2e6f5eb6f7aee1006b1c22efab4.pdf",
        "pages": 47,
        "sha256": "4a9ad71cd6535368",
        "source_tier": "mfr"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "usb2422-i.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "usb2422-i-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a924d6e173d20b44ab40c85b4b0b19f6a3d6ce80d2b749e4362f1daf035209e9",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "QFN-24-EP(4x4)",
      "Category": "Interface ICs",
      "Pins": "25"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4a9ad71cd6535368f9535d08924dbff9c21c0554d5fbf01cf06ae0d92a44fc0d",
      "rows": [
        {
          "name": "Storage Temperature",
          "symbol": "TSTOR",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "3.3 V supply voltage (absolute maximum)",
          "symbol": "VDD33",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 4.6,
          "conditions": "",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "Voltage on any I/O pin (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "Voltage on XTALIN (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "Voltage on XTALOUT (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 2.5,
          "conditions": "",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "USB2422-i Operating Temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Ambient temperature in still air",
          "source_page": 35,
          "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": 35,
          "source": "datasheet"
        },
        {
          "name": "3.3 V supply rise time",
          "symbol": "tRT33",
          "kind": "recommended_operating",
          "unit": "μs",
          "min": 0,
          "typ": null,
          "max": 400,
          "conditions": "See Figure 5-1",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "Voltage on any I/O pin (recommended)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "If any 3.3 V supply drops below 3.0 V, MAX becomes (3.3 V supply voltage) + 0.5",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "Voltage on XTALIN (recommended)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Printed max is VDD12 + 0.3 (not a numeric value in the text)",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "I, IS input buffer low input level",
          "symbol": "VILI",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "TTL levels",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "I, IS input buffer high input level",
          "symbol": "VIHI",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "I, IS input leakage",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "μA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "VIN = 0 to VDD33",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "IS input hysteresis",
          "symbol": "VHYSI",
          "kind": "electrical",
          "unit": "mV",
          "min": 250,
          "typ": null,
          "max": 350,
          "conditions": "IS only",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "IPU input buffer low input level",
          "symbol": "VILI",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "TTL levels",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "IPU input buffer high input level",
          "symbol": "VIHI",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "IPU input buffer low input leakage",
          "symbol": "IILL",
          "kind": "electrical",
          "unit": "μA",
          "min": 35,
          "typ": null,
          "max": 90,
          "conditions": "VIN = 0",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "IPU input buffer high input leakage",
          "symbol": "IIHL",
          "kind": "electrical",
          "unit": "μA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "VIN = VDD33",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "IPD input buffer low input level",
          "symbol": "VILI",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "TTL levels",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "IPD input buffer high input level",
          "symbol": "VIHI",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "IPD input buffer low input leakage (as printed +10 / -10)",
          "symbol": "IILL",
          "kind": "electrical",
          "unit": "μA",
          "min": 10,
          "typ": null,
          "max": -10,
          "conditions": "VIN = 0",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "IPD input buffer high input leakage (as printed)",
          "symbol": "IIHL",
          "kind": "electrical",
          "unit": "μA",
          "min": -35,
          "typ": null,
          "max": -90,
          "conditions": "VIN = VDD33",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "ICLK input buffer low input level",
          "symbol": "VILCK",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "ICLK input buffer high input level",
          "symbol": "VIHCK",
          "kind": "electrical",
          "unit": "V",
          "min": 0.9,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "ICLK input leakage",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "μA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "VIN = 0 to VDD33",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "O12, I/O12, I/OSD12 low output level",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IOL = 12 mA @ VDD33 = 3.3 V",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "O12, I/O12, I/OSD12 high output level",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "IOH = -12 mA @ VDD33 = 3.3 V",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "O12, I/O12, I/OSD12 output leakage",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "μA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "SD pad hysteresis",
          "symbol": "VHYSC",
          "kind": "electrical",
          "unit": "mV",
          "min": 250,
          "typ": null,
          "max": 350,
          "conditions": "VIN = VDD33",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Supply current, unconfigured, Hi-Speed host",
          "symbol": "ICCINTHS",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 40,
          "max": 45,
          "conditions": "",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Supply current, Hi-Speed host, each additional downstream port",
          "symbol": "ICCINTFS",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 35,
          "max": 40,
          "conditions": "Note 5-8: peak USB traffic, not average draw",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Supply current, Hi-Speed host, 1 downstream port",
          "symbol": "IHCH1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 47,
          "max": 58,
          "conditions": "Note 5-8: peak USB traffic, not average draw",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Supply current, Hi-Speed host, 2 downstream ports",
          "symbol": "IHCH2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 70,
          "max": 89,
          "conditions": "Note 5-8: peak USB traffic, not average draw",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Supply current, Full-Speed host, 1 downstream port",
          "symbol": "IFCC1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 29,
          "max": 40,
          "conditions": "Note 5-8: peak USB traffic, not average draw",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Supply current, Full-Speed host, 2 downstream ports",
          "symbol": "IFCC2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 35,
          "max": 45,
          "conditions": "Note 5-8: peak USB traffic, not average draw",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Supply current, suspend",
          "symbol": "ICSBY",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 425,
          "max": 1200,
          "conditions": "Note 5-6: 1200 μA for industrial temperature part",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Supply current, reset",
          "symbol": "ICRST",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 300,
          "max": 1000,
          "conditions": "Note 5-7: 1000 μA for industrial temperature part",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Clock input capacitance",
          "symbol": "CXTAL",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "All pins except USB pins and the pins under the test tied to AC ground",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Input capacitance",
          "symbol": "CIN",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
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