USB2512B-AEZG

{
  "slug": "usb2512b-aezg",
  "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-aezg",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "usb2512b-aezg.kicad_sym",
    "usb2512b-aezg.kicad_mod",
    "usb2512b-aezg.glb",
    "usb2512b-aezg.step",
    "usb2512b-aezg.lbr",
    "docs/hero.png",
    "docs/usb2512b-aezg-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "usb2512b-aezg-hero.glb",
    "usb2512b-aezg-hero.overlay.json",
    "usb2512b-aezg-etched.glb"
  ],
  "component": {
    "mpn": "USB2512B-AEZG",
    "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-aezg.kicad_sym",
      "footprint": "usb2512b-aezg.kicad_mod",
      "model_3d": "usb2512b-aezg-hero.glb",
      "model_3d_plain": "usb2512b-aezg-etched.glb",
      "model_3d_step": "usb2512b-aezg-etched.step",
      "model_3d_step_plain": "usb2512b-aezg.step",
      "lbr": "usb2512b-aezg.lbr"
    },
    "distributor_links": {
      "lcsc": "C633333"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T23:05:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 710 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "USBDM_DN1/PRT_DIS_M1",
        "type": "bidirectional",
        "description": "Downstream port 1 hi-speed USB D- data line, also the port 1 disable strap sampled at RESET_N negation (pull up both PRT_DIS_M1 and 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 line, also the port 1 disable strap; to disable, use a 10 k pull-up resistor to 3.3 V."
      },
      {
        "number": "3",
        "name": "USBDM_DN2/PRT_DIS_M2",
        "type": "bidirectional",
        "description": "Downstream port 2 hi-speed USB D- data line, also the port 2 disable strap sampled at RESET_N negation (pull up both PRT_DIS_M2 and 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 line, also the port 2 disable strap; to disable, use a 10 k pull-up resistor to 3.3 V."
      },
      {
        "number": "5",
        "name": "VDDA33",
        "type": "power_in",
        "description": "3.3 V analog power supply."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect: no signal or trace should be routed or attached to this pin."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect: no signal or trace should be routed or attached to this pin."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect: no signal or trace should be routed or attached to this pin."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect: no signal or trace should be routed or attached to this pin."
      },
      {
        "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 a 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 (O12) that is also the battery charging strap (internal pull-down) sampled at RESET_N negation: 1 = battery charging supported on port 1."
      },
      {
        "number": "13",
        "name": "OCS_N1",
        "type": "input",
        "description": "Over-current sense input for port 1 from an external current monitor, with internal pull-up, active low."
      },
      {
        "number": "14",
        "name": "CRFILT",
        "type": "passive",
        "description": "Core regulator filter capacitor pin: can 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 (O12) that is also the battery charging strap (internal pull-down) sampled at RESET_N negation: 1 = battery charging supported on port 2."
      },
      {
        "number": "17",
        "name": "OCS_N2",
        "type": "input",
        "description": "Over-current sense input for port 2 from an external current monitor, with internal pull-up, active low."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect: no signal or trace should be routed or attached to this pin."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect: no signal or trace should be routed or attached to this pin."
      },
      {
        "number": "20",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect: no signal or trace should be routed or attached to this pin."
      },
      {
        "number": "21",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect: no signal or trace should be routed or attached to this pin."
      },
      {
        "number": "22",
        "name": "SDA/SMBDATA/NON_REM1",
        "type": "bidirectional",
        "description": "Serial data (I2C) or SMBus data signal (I/OSD12), also the non-removable port 1 strap sampled with NON_REM0 at RESET_N negation (47-100 k strap resistor)."
      },
      {
        "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 (I2C) or SMBus clock (I/OSD12), also configuration select 0 latched on the rising edge of RESET_N to set the hub configuration method."
      },
      {
        "number": "25",
        "name": "HS_IND/CFG_SEL1",
        "type": "bidirectional",
        "description": "Hi-speed upstream port indicator (asserted = connected at HS, negated = FS), also configuration select 1 latched on the rising edge of RESET_N."
      },
      {
        "number": "26",
        "name": "RESET_N",
        "type": "input",
        "description": "Active-low reset input; the minimum active low pulse is 1 µs."
      },
      {
        "number": "27",
        "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 k suggested) or, if self-powered with permanently attached host, to a host control output or the host 3.3 V domain."
      },
      {
        "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 signal; connect to the upstream USB bus (host, port, or upstream hub)."
      },
      {
        "number": "31",
        "name": "USBDP_UP",
        "type": "bidirectional",
        "description": "Upstream USB D+ data signal; connect to the upstream USB bus (host, port, or upstream hub)."
      },
      {
        "number": "32",
        "name": "XTALOUT",
        "type": "output",
        "description": "Crystal output with 1.2 V p-p and weak (<1 mA) drive; leave unconnected or use with caution 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: can 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 k (+/-1%) resistor is attached 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 gives no number for the exposed ground pad. I labelled it 'EP' (the table prints 'ePad; Table 3-1 (pin numbers) was text-extracted with the USB2512B, 2513B and 2514B columns merged. I took; The datasheet calls this package '36-pin QFN (Legacy)', and the order table lists USB2512B-AEZG as 3",
          "4/37 pins cited to the wrong page (name found elsewhere): ['23:VDD33@p14', '25:HS_IND/CFG_SEL1@p13', '28:SUSP_IND/LOCAL_PWR/NON_REM0@p14', '34:PLLFILT@p14']"
        ],
        "pages_sent": 27,
        "cost_usd": 0.2403,
        "at": "2026-10-22T23:04:59"
      },
      "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-aezg.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": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "usb2512b-aezg-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          6.0,
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1b3d8660b44862334c9451062c378dfe23d7c71104e03dbc57bfbf144dd4836b",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}