A1333LLETR-T

{
  "schema_version": 1,
  "type": "component",
  "slug": "a1333lletr-t",
  "title": "A1333LLETR-T",
  "brief": "Allegro MicroSystems, LLC Position Sensor, TSSOP-14. 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",
    "sensors",
    "a1333lletr-t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "A1333LLETR-T",
    "manufacturer": "Allegro MicroSystems, LLC",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "Sensors",
    "subcategory": "Position Sensor",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/23ac4f7bd0b76acb10dbb6459cd0b6cd.pdf",
    "parts": {
      "symbol": "a1333lletr-t.kicad_sym",
      "footprint": "a1333lletr-t.kicad_mod",
      "model_3d": "a1333lletr-t-hero.glb",
      "model_3d_plain": "a1333lletr-t-etched.glb",
      "model_3d_step": "a1333lletr-t-etched.step",
      "model_3d_step_plain": "a1333lletr-t.step",
      "lbr": "a1333lletr-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C3825364",
      "digikey": "620-A1333LLETR-TTR-ND",
      "mouser": "250-A1333LLETR-T"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T19:18:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "620-A1333LLETR-TTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "250-A1333LLETR-T",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BYP",
        "type": "passive",
        "description": "External bypass capacitor terminal for the internal regulator (0.1 µF used in application circuit); also tied to for Manchester ID value '1'."
      },
      {
        "number": "2",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply input (4.0 to 16.5 V operating) and Manchester input."
      },
      {
        "number": "3",
        "name": "TEST",
        "type": "input",
        "description": "Test pin; bring to GND."
      },
      {
        "number": "4",
        "name": "PWM",
        "type": "output",
        "description": "PWM angle output and Manchester output."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal (pins 5, 6 and 7 are all ground)."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal (pins 5, 6 and 7 are all ground)."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground terminal (pins 5, 6 and 7 are all ground)."
      },
      {
        "number": "8",
        "name": "CS/SA0",
        "type": "input",
        "description": "SPI active-low chip select input; in Manchester mode it is the LSB of the ID value, tied to BYP for '1' or GND for '0'."
      },
      {
        "number": "9",
        "name": "SCLK",
        "type": "input",
        "description": "SPI clock input (0.1 to 10 MHz)."
      },
      {
        "number": "10",
        "name": "MOSI/SA1",
        "type": "input",
        "description": "SPI master output/slave input; in Manchester mode it is the MSB of the ID value, tied to BYP for '1' or GND for '0'."
      },
      {
        "number": "11",
        "name": "MISO",
        "type": "output",
        "description": "SPI master input/slave output."
      },
      {
        "number": "12",
        "name": "A/U",
        "type": "output",
        "description": "Option 1: quadrature A output signal; Option 2: U (phase 1) output signal."
      },
      {
        "number": "13",
        "name": "B/V",
        "type": "output",
        "description": "Option 1: quadrature B output signal; Option 2: V (phase 2) output signal."
      },
      {
        "number": "14",
        "name": "I/W",
        "type": "output",
        "description": "Option 1: quadrature I (index) output signal; Option 2: W (phase 3) output signal."
      }
    ],
    "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: PWM pin is also the Manchester output, and MISO may be tri-stated when CS is high; datasheet text do; The MPN A1333LLETR-T is the single-die 14-pin TSSOP (LE) 3.3 V interface variant; pinout taken from "
        ],
        "pages_sent": 8,
        "cost_usd": 0.1022,
        "at": "2026-10-26T19:17:44"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/23ac4f7bd0b76acb10dbb6459cd0b6cd.pdf",
        "pages": 87,
        "sha256": "fba1b0cba9f11fef",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "a1333lletr-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3ee5786aae56190997aa793ba3cfc003fd616782770e29719b4562f012982245",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "a1333lletr-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9ea781d5308d2587f72dac22ed96cd2772f2617d8bac0357667ff47ad96b1e11",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems, LLC",
      "Package": "TSSOP-14",
      "Category": "Sensors",
      "Pins": "14"
    },
    "appearance": {
      "contacts": {
        "quote": "single-die 14-pin TSSOP package. The packages are lead (Pb) free with 100% matte-tin leadframe plating.",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "fba1b0cba9f11fef0d364cf69657eba05c5d0d2bfab007fe38a3c083b4ba9c90"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "fba1b0cba9f11fef0d364cf69657eba05c5d0d2bfab007fe38a3c083b4ba9c90",
      "rows": [
        {
          "name": "Supply Voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 16.5,
          "conditions": "Customer supply",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 17,
          "max": 19,
          "conditions": "One die, sampling angles",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Undervoltage Flag Threshold",
          "symbol": "VUVD",
          "kind": "electrical",
          "unit": "V",
          "min": 3.6,
          "typ": null,
          "max": 3.9,
          "conditions": "dV/dt = 1 V/ms, A1333 sampling enabled, TA = 25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply Zener Clamp Voltage",
          "symbol": "VZSUP",
          "kind": "electrical",
          "unit": "V",
          "min": 26.5,
          "typ": null,
          "max": null,
          "conditions": "ICC = ICC + 3 mA, TA = 25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Reverse Battery Current",
          "symbol": "IRCC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VRCC = 18 V, TA = 25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power-On Time",
          "symbol": "tPO",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 15,
          "max": 20,
          "conditions": "Power-on diagnostics disabled",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power-on time; CVH self-test and LBIST enabled",
          "symbol": "tPO_D",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 45,
          "max": 50,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bypass Pin Output Voltage",
          "symbol": "VBYP",
          "kind": "electrical",
          "unit": "V",
          "min": 2.97,
          "typ": 3.3,
          "max": 3.63,
          "conditions": "TA = 25°C, CBYP = 0.1 µF, 3.3 V interface",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Digital Input High Voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.8,
          "typ": null,
          "max": 3.63,
          "conditions": "MOSI, SCLK, CS pins",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Digital Input Low Voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "MOSI, SCLK, CS pins",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output High Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.93,
          "typ": 3.3,
          "max": 3.63,
          "conditions": "MISO, ABI/UVW pins, CL = 20 pF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Low Voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.3,
          "max": null,
          "conditions": "MISO, ABI/UVW pins, CL = 20 pF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "SPI Clock Frequency",
          "symbol": "fSCLK",
          "kind": "timing",
          "unit": "MHz",
          "min": 0.1,
          "typ": null,
          "max": 10,
          "conditions": "MISO pins, CL = 20 pF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "SPI Clock Duty Cycle",
          "symbol": "DfSCLK",
          "kind": "timing",
          "unit": "%",
          "min": 40,
          "typ": null,
          "max": 60,
          "conditions": "SPICLKDC",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "SPI Frame Rate",
          "symbol": "tSPI",
          "kind": "timing",
          "unit": "kHz",
          "min": 5.8,
          "typ": null,
          "max": 588,
          "conditions": "16-bit SPI packet",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Chip Select to First SCLK Edge",
          "symbol": "tCS",
          "kind": "timing",
          "unit": "ns",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "Time from CS going low to SCLK falling edge",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Chip Select Idle Time",
          "symbol": "tCS_IDLE",
          "kind": "timing",
          "unit": "ns",
          "min": 200,
          "typ": null,
          "max": null,
          "conditions": "Time CS must be high between SPI message frames",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Data Output Valid Time",
          "symbol": "tDAV",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "Data output valid after SCLK falling edge",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "MOSI Setup Time",
          "symbol": "tSU",
          "kind": "timing",
          "unit": "ns",
          "min": 25,
          "typ": null,
          "max": null,
          "conditions": "Input setup time before SCLK rising edge",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "MOSI Hold Time",
          "symbol": "tHD",
          "kind": "timing",
          "unit": "ns",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "Input hold time after SCLK rising edge",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "SCLK to CS Hold Time",
          "symbol": "tCHD",
          "kind": "timing",
          "unit": "ns",
          "min": 5,
          "typ": null,
          "max": null,
          "conditions": "Hold SCLK high time before CS rising edge",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load Capacitance",
          "symbol": "CL",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "Loading on digital output (MISO) pin",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "ABI and UVW Output Angular Hysteresis",
          "symbol": "hysANG",
          "kind": "electrical",
          "unit": "degrees",
          "min": 0,
          "typ": null,
          "max": 1.38,
          "conditions": "Programmable via EEPROM (6 bits)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "AB Channel Resolution",
          "symbol": "RESAB",
          "kind": "electrical",
          "unit": "PPR",
          "min": 1,
          "typ": null,
          "max": 2048,
          "conditions": "Programmable via EEPROM, 4 bit field. Specified in pulses per revolution, PPR",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "AB Quadrature Resolution",
          "symbol": "RESAB_INT",
          "kind": "electrical",
          "unit": "CPR",
          "min": 4,
          "typ": null,
          "max": 8192,
          "conditions": "Equal to 4 × RESAB, specified in counts per revolution, CPR",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "UVW Pole Pairs",
          "symbol": "Npole",
          "kind": "electrical",
          "unit": "pole pairs",
          "min": 1,
          "typ": null,
          "max": 16,
          "conditions": "DC commutation signals. Programmable via EEPROM, 4-bit field.",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Manchester High Voltage",
          "symbol": "VMAN(H)",
          "kind": "electrical",
          "unit": "V",
          "min": 7.3,
          "typ": 8,
          "max": null,
          "conditions": "Applied to VCC line; max printed as VCC(max)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Manchester Low Voltage",
          "symbol": "VMAN(L)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 5,
          "max": 5.7,
          "conditions": "Applied to VCC line; min printed as VCC(min)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Manchester Bit Rate",
          "symbol": "fMAN",
          "kind": "timing",
          "unit": "kbit/s",
          "min": 2.2,
          "typ": null,
          "max": 100,
          "conditions": "Line state changes once or twice per bit; maximum speed is usually limited by VCC line capacitance",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Magnetic Field",
          "symbol": "B",
          "kind": "electrical",
          "unit": "G",
          "min": null,
          "typ": null,
          "max": 1200,
          "conditions": "Range of input field",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Angle Error",
          "symbol": "ERRANG",
          "kind": "electrical",
          "unit": "degrees",
          "min": -1,
          "typ": 0.4,
          "max": 1,
          "conditions": "TA = 25°C, ideal magnet alignment, B = 300 G, target rpm = 0",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Angle Error",
          "symbol": "ERRANG",
          "kind": "electrical",
          "unit": "degrees",
          "min": -1.3,
          "typ": 0.6,
          "max": 1.3,
          "conditions": "TA = 150°C, ideal magnet alignment, B = 300 G, target rpm = 0",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Temperature Drift",
          "symbol": "ANGLEDRIFT",
          "kind": "electrical",
          "unit": "degrees",
          "min": -1.4,
          "typ": null,
          "max": 1.4,
          "conditions": "TA = 150°C, B = 300 G, angle change from 25°C",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Forward Supply Voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 26.5,
          "conditions": "Not sampling angles",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Supply Voltage",
          "symbol": "VRCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 18,
          "conditions": "Not sampling angles",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "All Other Pins Forward Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "All Other Pins Reverse Voltage",
          "symbol": "VR",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Ambient Temperature",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "L range",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Junction Temperature",
          "symbol": "TJ(max)",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 170,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 170,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Package Thermal Resistance",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 82,
          "max": null,
          "conditions": "LE-14 package",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Operating VCC derating, TSSOP-14",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 12.84,
          "conditions": "At TA = 144°C, TSSOP-14 Thermal Derating Curve (16.5 V max at lower TA)",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "PWM Carrier Frequency Min Setting",
          "symbol": "fPWM",
          "kind": "timing",
          "unit": "Hz",
          "min": null,
          "typ": 98,
          "max": null,
          "conditions": "PWM Frequency Min Setting",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "PWM Carrier Frequency Max Setting",
          "symbol": "fPWM",
          "kind": "timing",
          "unit": "kHz",
          "min": null,
          "typ": 3.125,
          "max": null,
          "conditions": "PWM Frequency Max Setting",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Angle Noise",
          "symbol": "NANG",
          "kind": "electrical",
          "unit": "degrees",
          "min": null,
          "typ": 0.19,
          "max": null,
          "conditions": "TA = 25°C, B = 300 G, no internal filtering, target rpm = 0, 3 sigma noise (printed ±0.19)",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Response Time",
          "symbol": "tRESPONSE",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 7,
          "max": null,
          "conditions": "Angular Latency; valid for ABI or UVW interface; ORATE = 0",
          "source_page": 8,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "a1333lletr-t"
  ],
  "discovery_pitch": "A1333LLETR-T (Allegro MicroSystems, LLC) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "a1333lletr-t.kicad_sym",
    "a1333lletr-t.kicad_mod",
    "a1333lletr-t.glb",
    "a1333lletr-t.step",
    "a1333lletr-t.lbr",
    "docs/hero.png",
    "docs/a1333lletr-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "a1333lletr-t-hero.glb",
    "a1333lletr-t-hero.overlay.json",
    "a1333lletr-t-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}