AS5040-ASST

{
  "schema_version": 1,
  "type": "component",
  "slug": "as5040-asst",
  "title": "AS5040-ASST",
  "brief": "AMS Signal Switches, Multiplexers, Decoders, SSOP-16-208mil. 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",
    "logic",
    "as5040-asst",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AS5040-ASST",
    "manufacturer": "AMS",
    "package": "SSOP-16-208mil",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590224567655428096",
    "parts": {
      "symbol": "as5040-asst.kicad_sym",
      "footprint": "as5040-asst.kicad_mod",
      "model_3d": "as5040-asst-hero.glb",
      "model_3d_plain": "as5040-asst-etched.glb",
      "model_3d_step": "as5040-asst-etched.step",
      "model_3d_step_plain": "as5040-asst.step",
      "lbr": "as5040-asst.lbr"
    },
    "distributor_links": {
      "lcsc": "C962061"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T12:42:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "MagINCn",
        "type": "output",
        "description": "Magnet field magnitude increase indicator, active low, signals a reduced distance between magnet and device; open-drain digital output."
      },
      {
        "number": "2",
        "name": "MagDECn",
        "type": "output",
        "description": "Magnet field magnitude decrease indicator, active low, signals an increased distance between device and magnet; open-drain digital output."
      },
      {
        "number": "3",
        "name": "A_LSB_U",
        "type": "output",
        "description": "Mode 1.x quadrature A channel, Mode 2.x least significant bit (LSB), Mode 3.x U signal (phase 1) of the incremental interface."
      },
      {
        "number": "4",
        "name": "B_Dir_V",
        "type": "output",
        "description": "Mode 1.x quadrature B channel (quarter period shift to channel A), Mode 2.x direction of rotation, Mode 3.x V signal (phase 2)."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "Must be left unconnected."
      },
      {
        "number": "6",
        "name": "Index_W",
        "type": "output",
        "description": "Mode 1.x and 2.x index signal indicating the absolute zero position; Mode 3.x W signal (phase 3)."
      },
      {
        "number": "7",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative supply voltage (GND)."
      },
      {
        "number": "8",
        "name": "Prog",
        "type": "input",
        "description": "OTP programming input and data input for daisy chain mode; internal pull-down resistor (~74 kΩ), may be connected to VSS if programming is not used."
      },
      {
        "number": "9",
        "name": "DO",
        "type": "tri_state",
        "description": "Data output of the synchronous serial interface; tri-stated when CSn is high, which also terminates serial data transfer."
      },
      {
        "number": "10",
        "name": "CLK",
        "type": "input",
        "description": "Clock input of the synchronous serial interface, Schmitt-trigger input."
      },
      {
        "number": "11",
        "name": "CSn",
        "type": "input",
        "description": "Chip select, active low, Schmitt-trigger input with internal pull-up resistor (~50 kΩ); connect to VSS in incremental mode."
      },
      {
        "number": "12",
        "name": "PWM_LSB",
        "type": "output",
        "description": "Pulse width modulated output of approx. 1 kHz (1 µs to 1024 µs over a full turn); provides the LSB in Mode 3.x."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "Must be left unconnected."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "Must be left unconnected."
      },
      {
        "number": "15",
        "name": "VDD3V3",
        "type": "power_out",
        "description": "3 V regulator output of the internal LDO (see Figure 39 of the datasheet)."
      },
      {
        "number": "16",
        "name": "VDD5V",
        "type": "power_in",
        "description": "Positive supply voltage, 5 V."
      }
    ],
    "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 AS5040-ASST is the SSOP-16 tape-and-reel variant per the ordering table (page 55); the pin table; Pins 1 and 2 are open-drain outputs (DO_OD). The schema has no open-drain class, so they are mapped ; Pin 15 (VDD3V3) is typed as power_out because the datasheet calls it a 3 V regulator output. Its out"
        ],
        "pages_sent": 22,
        "cost_usd": 0.0698,
        "at": "2026-10-18T12:41:31"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590224567655428096",
        "pages": 61,
        "sha256": "20b6fa4b22dc6a84",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "as5040-asst.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          6.2,
          2.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d0e11e46aeca5dbaa5c4bb538f3f4899761267cabdeba6486325ae9e979c03ef",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "as5040-asst-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.8,
          6.2,
          2.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "db173f023384bdb21036f21b41ce259c139120f82acae51f8f38e9955d347955",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "AMS",
      "Package": "SSOP-16-208mil",
      "Category": "Logic",
      "Pins": "16"
    },
    "appearance": {
      "contacts": {
        "quote": "Lead finish 100% Sn “matte tin” RHNC Relative humidity (non",
        "page": 7,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "20b6fa4b22dc6a849c6080abea9d6f2d748a8f855b6968a7b0c11ca0c6aef122"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "20b6fa4b22dc6a849c6080abea9d6f2d748a8f855b6968a7b0c11ca0c6aef122",
      "rows": [
        {
          "name": "DC supply voltage at pin VDD5V",
          "symbol": "VDD5V",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "DC supply voltage at pin VDD3V3",
          "symbol": "VDD3V3",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input pin voltage",
          "symbol": "Vin",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input pin voltage (pins MagINCn, MagDECn, CLK, CSn)",
          "symbol": "Vin",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7.5,
          "conditions": "Pins MagINCn, MagDECn, CLK, CSn",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input current (latchup immunity)",
          "symbol": "Iscr",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "Norm: JEDEC 78",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Electrostatic discharge",
          "symbol": "ESD",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "Norm: MIL 883 E method 3015",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstrg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Body temperature (lead-free package)",
          "symbol": "TBody",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "t=20 to 40s, Norm: IPC/JEDEC J-Std-020C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Relative humidity (non condensing)",
          "symbol": "RHNC",
          "kind": "absolute_maximum",
          "unit": "%",
          "min": 5,
          "typ": null,
          "max": 85,
          "conditions": "Non condensing",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "Tamb",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "External supply voltage at pin VDD5V (5V operation)",
          "symbol": "VDD5V",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": 5,
          "max": 5.5,
          "conditions": "5V operation",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Internal regulator output voltage at pin VDD3V3 (5V operation)",
          "symbol": "VDD3V3",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "5V operation",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "External supply voltage at pin VDD5V (3.3V operation)",
          "symbol": "VDD5V",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "3.3V operation (pins VDD5V and VDD3V3 connected)",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "External supply voltage at pin VDD3V3 (3.3V operation)",
          "symbol": "VDD3V3",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "3.3V operation (pins VDD5V and VDD3V3 connected)",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "Isupp",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 16,
          "max": 21,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "ILEAK",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "CLK only",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Pull-up low level input current",
          "symbol": "IiL",
          "kind": "electrical",
          "unit": "μA",
          "min": -100,
          "typ": null,
          "max": -30,
          "conditions": "CSn only, VDD5V: 5.0V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "High level input voltage (Prog)",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Output current (MagINCn, MagDECn)",
          "symbol": "IO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "VDD5V: 4.5V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Output current (MagINCn, MagDECn)",
          "symbol": "IO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "VDD5V: 3V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Output current (A, B, Index, PWM)",
          "symbol": "IO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "VDD5V: 4.5V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Output current (A, B, Index, PWM)",
          "symbol": "IO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "VDD5V: 3V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Output current (DO)",
          "symbol": "IO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "VDD5V: 4.5V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Output current (DO)",
          "symbol": "IO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "VDD5V: 3V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Diameter",
          "symbol": "dmag",
          "kind": "recommended_operating",
          "unit": "mm",
          "min": 4,
          "typ": null,
          "max": 6,
          "conditions": "Recommended magnet: Ø 6mm x 2.5mm",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Magnetic input field amplitude",
          "symbol": "Bpk",
          "kind": "recommended_operating",
          "unit": "mT",
          "min": 45,
          "typ": null,
          "max": 75,
          "conditions": "Vertical component of field on die surface, concentric circle radius 1.1mm",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Magnetic offset",
          "symbol": "Boff",
          "kind": "recommended_operating",
          "unit": "mT",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "Constant magnetic stray field",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Displacement radius",
          "symbol": "Disp",
          "kind": "recommended_operating",
          "unit": "mm",
          "min": null,
          "typ": null,
          "max": 0.25,
          "conditions": "Max. X-Y offset between defined IC package center and magnet axis",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Displacement radius (chip center)",
          "symbol": "Disp",
          "kind": "recommended_operating",
          "unit": "mm",
          "min": null,
          "typ": null,
          "max": 0.485,
          "conditions": "Max. X-Y offset between chip center and magnet axis",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Integral non-linearity (optimum)",
          "symbol": "INLopt",
          "kind": "electrical",
          "unit": "deg",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "Optimum magnet placement, Tamb = 25 °C; max error vs best line fit",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Integral non-linearity (optimum, temperature)",
          "symbol": "INLtemp",
          "kind": "electrical",
          "unit": "deg",
          "min": -0.9,
          "typ": null,
          "max": 0.9,
          "conditions": "Optimum magnet placement, Tamb = -40°C to 125°C",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Integral non-linearity",
          "symbol": "INL",
          "kind": "electrical",
          "unit": "deg",
          "min": -1.4,
          "typ": null,
          "max": 1.4,
          "conditions": "Over displacement tolerance with 6mm diameter magnet, Tamb = -40°C to 125°C",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Differential non-linearity",
          "symbol": "DNL",
          "kind": "electrical",
          "unit": "deg",
          "min": -0.176,
          "typ": null,
          "max": 0.176,
          "conditions": "10bit, no missing codes",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Power-on-reset threshold ON voltage",
          "symbol": "Von",
          "kind": "electrical",
          "unit": "V",
          "min": 1.37,
          "typ": 2.2,
          "max": 2.9,
          "conditions": "DC supply voltage 3.3V (VDD3V3)",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Power-on-reset threshold OFF voltage",
          "symbol": "Voff",
          "kind": "electrical",
          "unit": "V",
          "min": 1.08,
          "typ": 1.9,
          "max": 2.6,
          "conditions": "DC supply voltage 3.3V (VDD3V3)",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Sampling rate for absolute output",
          "symbol": "fS",
          "kind": "electrical",
          "unit": "kHz",
          "min": 9.9,
          "typ": 10.42,
          "max": 10.94,
          "conditions": "Internal sampling rate, Tamb = 25°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Sampling rate for absolute output",
          "symbol": "fS",
          "kind": "electrical",
          "unit": "kHz",
          "min": 9.38,
          "typ": 10.42,
          "max": 11.46,
          "conditions": "Internal sampling rate, Tamb = -40°C to 125°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "CLK read-out frequency",
          "symbol": "CLK",
          "kind": "timing",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Max. clock frequency to read out serial data",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Data output valid",
          "symbol": "tDO valid",
          "kind": "timing",
          "unit": "ns",
          "min": 357,
          "typ": null,
          "max": 413,
          "conditions": "Time between rising edge of CLK and data output valid",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Read-out frequency",
          "symbol": "fCLK",
          "kind": "timing",
          "unit": "MHz",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Clock frequency to read out serial data",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "PWM frequency",
          "symbol": "fPWM",
          "kind": "timing",
          "unit": "kHz",
          "min": 0.927,
          "typ": 0.976,
          "max": 1.024,
          "conditions": "Signal period = 1025μs ±5% at Tamb = 25°C",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "PWM frequency",
          "symbol": "fPWM",
          "kind": "timing",
          "unit": "kHz",
          "min": 0.878,
          "typ": 0.976,
          "max": 1.074,
          "conditions": "Signal period = 1025μs ±10% at Tamb = -40°C to 125°C",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Minimum pulse width",
          "symbol": "PWMIN",
          "kind": "timing",
          "unit": "μs",
          "min": 0.9,
          "typ": 1,
          "max": 1.1,
          "conditions": "Position 0d; angle 0 degree",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "Maximum pulse width",
          "symbol": "PWMAX",
          "kind": "timing",
          "unit": "μs",
          "min": 922,
          "typ": 1024,
          "max": 1126,
          "conditions": "Position 1023d; angle 359.65 degree",
          "source_page": 15,
          "source": "datasheet"
        },
        {
          "name": "t PROG CLK pulse width",
          "symbol": "tPROG CLK",
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