USB2512B-I

{
  "slug": "usb2512b-i",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech USB ICs, TQFN-36-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "usb2512b-i",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "usb2512b-i.kicad_sym",
    "usb2512b-i.kicad_mod",
    "usb2512b-i.glb",
    "usb2512b-i.step",
    "usb2512b-i.lbr",
    "docs/hero.png",
    "docs/usb2512b-i-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "usb2512b-i-hero.glb",
    "usb2512b-i-hero.overlay.json",
    "usb2512b-i-etched.glb"
  ],
  "component": {
    "mpn": "USB2512B-I",
    "manufacturer": "Microchip Tech",
    "package": "TQFN-36-EP(6x6)",
    "pin_count": 37,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "USB ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/6c3e145f139571f448f841382155d3f0.pdf",
    "parts": {
      "symbol": "usb2512b-i.kicad_sym",
      "footprint": "usb2512b-i.kicad_mod",
      "model_3d": "usb2512b-i-hero.glb",
      "model_3d_plain": "usb2512b-i-etched.glb",
      "model_3d_step": "usb2512b-i-etched.step",
      "model_3d_step_plain": "usb2512b-i.step",
      "lbr": "usb2512b-i.lbr"
    },
    "distributor_links": {
      "lcsc": "C633335"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:16:45Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "USBDM_DN1/PRT_DIS_M1",
        "type": "bidirectional",
        "description": "Downstream port 1 hi-speed USB D- data, also the port 1 disable strap sampled at RESET_N negation (pull up with 10 kΩ to 3.3 V together with PRT_DIS_P1 to disable the port)."
      },
      {
        "number": "2",
        "name": "USBDP_DN1/PRT_DIS_P1",
        "type": "bidirectional",
        "description": "Downstream port 1 hi-speed USB D+ data, also the port 1 disable strap sampled at RESET_N negation (pull up with 10 kΩ to 3.3 V together with PRT_DIS_M1 to disable the port)."
      },
      {
        "number": "3",
        "name": "USBDM_DN2/PRT_DIS_M2",
        "type": "bidirectional",
        "description": "Downstream port 2 hi-speed USB D- data, also the port 2 disable strap sampled at RESET_N negation (pull up with 10 kΩ to 3.3 V together with PRT_DIS_P2 to disable the port)."
      },
      {
        "number": "4",
        "name": "USBDP_DN2/PRT_DIS_P2",
        "type": "bidirectional",
        "description": "Downstream port 2 hi-speed USB D+ data, also the port 2 disable strap sampled at RESET_N negation (pull up with 10 kΩ to 3.3 V together with PRT_DIS_M2 to disable the port)."
      },
      {
        "number": "5",
        "name": "VDDA33",
        "type": "power_in",
        "description": "3.3 V analog power supply."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect on the USB2512B; no signal or trace should be routed or attached."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect on the USB2512B; no signal or trace should be routed or attached."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect on the USB2512B; no signal or trace should be routed or attached."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect on the USB2512B; no signal or trace should be routed or attached."
      },
      {
        "number": "10",
        "name": "VDDA33",
        "type": "power_in",
        "description": "3.3 V analog power supply."
      },
      {
        "number": "11",
        "name": "TEST",
        "type": "input",
        "description": "Test pin with internal pull-down; treat as no connect or connect to ground, and route no trace or signal to it."
      },
      {
        "number": "12",
        "name": "PRTPWR1/BC_EN1",
        "type": "bidirectional",
        "description": "Port 1 USB power enable output (12 mA drive), also the battery charging strap with internal pull-down sampled at RESET_N negation (1 = battery charging supported on port 1)."
      },
      {
        "number": "13",
        "name": "OCS_N1",
        "type": "input",
        "description": "Port 1 over-current sense input from an external current monitor, with internal pull-up."
      },
      {
        "number": "14",
        "name": "CRFILT",
        "type": "passive",
        "description": "Core regulator filter capacitor pin; may have up to a 0.1 µF low-ESR capacitor to VSS or be left unconnected."
      },
      {
        "number": "15",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3 V digital power supply."
      },
      {
        "number": "16",
        "name": "PRTPWR2/BC_EN2",
        "type": "bidirectional",
        "description": "Port 2 USB power enable output (12 mA drive), also the battery charging strap with internal pull-down sampled at RESET_N negation (1 = battery charging supported on port 2)."
      },
      {
        "number": "17",
        "name": "OCS_N2",
        "type": "input",
        "description": "Port 2 over-current sense input from an external current monitor, with internal pull-up."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect on the USB2512B; no signal or trace should be routed or attached."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect on the USB2512B; no signal or trace should be routed or attached."
      },
      {
        "number": "20",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect on the USB2512B; no signal or trace should be routed or attached."
      },
      {
        "number": "21",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect on the USB2512B; no signal or trace should be routed or attached."
      },
      {
        "number": "22",
        "name": "SDA/SMBDATA/NON_REM1",
        "type": "bidirectional",
        "description": "Serial data for I2C EEPROM or SMBus data, also the non-removable port strap bit 1 sampled with NON_REM0 at RESET_N negation (use 47-100 kΩ for strap high)."
      },
      {
        "number": "23",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3 V digital power supply."
      },
      {
        "number": "24",
        "name": "SCL/SMBCLK/CFG_SEL0",
        "type": "bidirectional",
        "description": "Serial clock for I2C EEPROM or SMBus clock, also configuration select 0 latched at RESET_N negation to determine the hub configuration method."
      },
      {
        "number": "25",
        "name": "HS_IND/CFG_SEL1",
        "type": "bidirectional",
        "description": "Hi-speed upstream port indicator (asserted when connected at HS, negated at FS), also configuration select 1 latched at RESET_N negation."
      },
      {
        "number": "26",
        "name": "RESET_N",
        "type": "input",
        "description": "Reset input; driving it low resets the chip, with a minimum active low pulse of 1 µs."
      },
      {
        "number": "27",
        "name": "VBUS_DET",
        "type": "input",
        "description": "Detects upstream VBUS power to control the internal D+ pull-up; use a 2:1 divider (two 100 kΩ suggested) from VBUS for detachable hubs, or a host control output or the host 3.3 V domain for self-powered permanently attached hosts."
      },
      {
        "number": "28",
        "name": "SUSP_IND/LOCAL_PWR/NON_REM0",
        "type": "bidirectional",
        "description": "Active/suspend status LED output, local self-power detect input (low = no local power, high = available), and non-removable port strap bit 0 sampled at RESET_N negation."
      },
      {
        "number": "29",
        "name": "VDDA33",
        "type": "power_in",
        "description": "3.3 V analog power supply."
      },
      {
        "number": "30",
        "name": "USBDM_UP",
        "type": "bidirectional",
        "description": "Upstream USB D- data connecting to the host, port, or upstream hub."
      },
      {
        "number": "31",
        "name": "USBDP_UP",
        "type": "bidirectional",
        "description": "Upstream USB D+ data connecting to the host, port, or upstream hub."
      },
      {
        "number": "32",
        "name": "XTALOUT",
        "type": "output",
        "description": "Crystal output, the other crystal terminal, with 1.2 V p-p output and weak (<1 mA) drive; leave unconnected when an external clock drives XTALIN/CLKIN."
      },
      {
        "number": "33",
        "name": "XTALIN/CLKIN",
        "type": "input",
        "description": "24 MHz crystal input or external 24 MHz clock input when a crystal is not used."
      },
      {
        "number": "34",
        "name": "PLLFILT",
        "type": "passive",
        "description": "PLL regulator filter capacitor pin; may have up to a 0.1 µF low-ESR capacitor to VSS or be left unconnected."
      },
      {
        "number": "35",
        "name": "RBIAS",
        "type": "input",
        "description": "USB transceiver bias; a 12.0 kΩ (±1%) resistor is connected from ground to this pin."
      },
      {
        "number": "36",
        "name": "VDDA33",
        "type": "power_in",
        "description": "3.3 V analog power supply."
      },
      {
        "number": "37",
        "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: The datasheet does not map the MPN USB2512B-I to a package. The package hint says TQFN-36-EP, but th; Pin numbers come from the alphabetical pin list (Table 3-1). The pin diagrams were garbled and page ; Pin types are inferred from the buffer types, because the datasheet gives no ERC classes. The multif",
          "12/37 pins cited to the wrong page (name found elsewhere): ['7:NC@p14', '8:NC@p14', '9:NC@p14', '18:NC@p14']"
        ],
        "pages_sent": 27,
        "cost_usd": 0.2459,
        "at": "2026-10-23T12:16:23"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/6c3e145f139571f448f841382155d3f0.pdf",
        "pages": 57,
        "sha256": "3fca1a17701a3fd5",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 37,
        "described": 37,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "usb2512b-i.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          6.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6212c4fd2463ccb7c6ae2c35f5e24c80884153fcaeaf8e86549c0e49087bc8bb",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "usb2512b-i-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          6.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "57073e07d1620702b62a9c0a479983b8b9de9497461c47d28e508eac6ec07622",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}