ADS7846E

{
  "slug": "ads7846e",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Touch Screen Controllers, SSOP-16-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "ads7846e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "ads7846e.kicad_sym",
    "ads7846e.kicad_mod",
    "ads7846e.glb",
    "ads7846e.step",
    "ads7846e.lbr",
    "docs/hero.png",
    "docs/ads7846e-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ads7846e-hero.glb",
    "ads7846e-hero.overlay.json"
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  "component": {
    "mpn": "ADS7846E",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-16-150mil",
    "pin_count": 16,
    "category": "Data Acquisition",
    "subcategory": "Touch Screen Controllers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ads7846",
    "parts": {
      "symbol": "ads7846e.kicad_sym",
      "footprint": "ads7846e.kicad_mod",
      "model_3d": "ads7846e-hero.glb",
      "model_3d_plain": "ads7846e.glb",
      "model_3d_step": "ads7846e-etched.step",
      "model_3d_step_plain": "ads7846e.step",
      "lbr": "ads7846e.lbr"
    },
    "distributor_links": {
      "lcsc": "C411881",
      "digikey": "ADS7846E-ND",
      "mouser": "595-ADS7846E"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T18:48:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ADS7846E-ND",
        "status": "found",
        "lifecycle": "Last Time Buy"
      },
      "mouser": {
        "pn": "595-ADS7846E",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "+VCC",
        "type": "power_in",
        "description": "Power supply input; specified performance at 2.7 V to 3.6 V, operating range 2.2 V to 5.25 V."
      },
      {
        "number": "2",
        "name": "X+",
        "type": "passive",
        "description": "X+ position input to the touch screen, switched through an internal driver with 5 Ω typical on-resistance."
      },
      {
        "number": "3",
        "name": "Y+",
        "type": "passive",
        "description": "Y+ position input to the touch screen, switched through an internal driver with 5 Ω typical on-resistance."
      },
      {
        "number": "4",
        "name": "X–",
        "type": "passive",
        "description": "X- position input to the touch screen, switched through an internal driver with 6 Ω typical on-resistance."
      },
      {
        "number": "5",
        "name": "Y–",
        "type": "passive",
        "description": "Y- position input to the touch screen, switched through an internal driver with 6 Ω typical on-resistance."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; the datasheet states it must be connected to a clean ground point, ideally a dedicated analog ground plane."
      },
      {
        "number": "7",
        "name": "VBAT",
        "type": "power_in",
        "description": "Battery monitor input with an input voltage range of 0.5 V to 6.0 V and 10 kΩ sampling input impedance."
      },
      {
        "number": "8",
        "name": "AUX",
        "type": "input",
        "description": "Auxiliary input to the ADC; absolute input range is -0.2 V to +VCC + 0.2 V."
      },
      {
        "number": "9",
        "name": "VREF",
        "type": "power_in",
        "description": "Voltage reference input/output for the converter; the internal 2.5 V reference (2.45 V to 2.55 V) is available here, and an external reference input range is 1.0 V to +VCC."
      },
      {
        "number": "10",
        "name": "+VCC",
        "type": "power_in",
        "description": "Digital I/O power supply; logic input and output levels are referenced to this supply (VIH minimum +VCC × 0.7, VOH minimum +VCC × 0.8)."
      },
      {
        "number": "11",
        "name": "PENIRQ",
        "type": "output",
        "description": "Pen interrupt open-anode output that requires an external 10 kΩ to 100 kΩ pull-up resistor; VOL is 0.8 V maximum with a 50 kΩ pull-up."
      },
      {
        "number": "12",
        "name": "DOUT",
        "type": "tri_state",
        "description": "Serial data output shifted on the falling edge of DCLK; high impedance when CS is high."
      },
      {
        "number": "13",
        "name": "BUSY",
        "type": "tri_state",
        "description": "Busy output; high impedance when CS is high."
      },
      {
        "number": "14",
        "name": "DIN",
        "type": "input",
        "description": "Serial data input; data is latched on the rising edge of DCLK when CS is low."
      },
      {
        "number": "15",
        "name": "CS",
        "type": "input",
        "description": "Chip select input that controls conversion timing and enables the serial I/O register; CS high puts the ADC in power-down mode."
      },
      {
        "number": "16",
        "name": "DCLK",
        "type": "input",
        "description": "External clock input that runs the SAR conversion process and synchronizes serial data I/O."
      }
    ],
    "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 datasheet pin table (page 4) is a shared SSOP/TSSOP pinout and does not state a body width. The ; The analog position pins X+, Y+, X–, Y– are typed passive because the datasheet describes them as to; Pins 1 and 10 are both +VCC, as printed in the pin table. Pin 1 is the analog supply and pin 10 is t"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0552,
        "at": "2026-10-11T18:48:24"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ads7846",
        "pages": 33,
        "sha256": "2bb9324ddfaf5902",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d0e11e46aeca5dbaa5c4bb538f3f4899761267cabdeba6486325ae9e979c03ef",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ads7846e-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "sha256": "6a932e2651e918d2c236809d32280fb653521b42c995a214437b6ece01a85836",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}