HT16K33A-20SOP

{
  "schema_version": 1,
  "type": "component",
  "slug": "ht16k33a-20sop",
  "title": "HT16K33A-20SOP",
  "brief": "Holtek Semicon LED Drivers, SOP-20. 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",
    "led drivers",
    "ht16k33a-20sop",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "HT16K33A-20SOP",
    "manufacturer": "Holtek Semicon",
    "package": "SOP-20",
    "pin_count": 20,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://www.holtek.com.tw/webapi/11842/HT16K33Av111.pdf",
    "parts": {
      "symbol": "ht16k33a-20sop.kicad_sym",
      "footprint": "ht16k33a-20sop.kicad_mod",
      "model_3d": "ht16k33a-20sop-hero.glb",
      "model_3d_plain": "ht16k33a-20sop-etched.glb",
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      "lbr": "ht16k33a-20sop.lbr"
    },
    "distributor_links": {
      "lcsc": "C5444733"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T14:04:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative power supply for logic circuit, ground."
      },
      {
        "number": "2",
        "name": "COM0/AD",
        "type": "output",
        "description": "Common output, active low during display; also device address source output, active high during power on reset and key scan."
      },
      {
        "number": "3",
        "name": "COM1/KS0",
        "type": "output",
        "description": "Common output, active low when displaying; also key source output, active high during key scan operation."
      },
      {
        "number": "4",
        "name": "COM2/KS1",
        "type": "output",
        "description": "Common output, active low when displaying; also key source output, active high during key scan operation."
      },
      {
        "number": "5",
        "name": "COM3/KS2",
        "type": "output",
        "description": "Common output, active low when displaying; also key source output, active high during key scan operation."
      },
      {
        "number": "6",
        "name": "COM4",
        "type": "output",
        "description": "Common output, active low during display."
      },
      {
        "number": "7",
        "name": "COM5",
        "type": "output",
        "description": "Common output, active low during display."
      },
      {
        "number": "8",
        "name": "COM6",
        "type": "output",
        "description": "Common output, active low during display."
      },
      {
        "number": "9",
        "name": "COM7",
        "type": "output",
        "description": "Common output, active low during display."
      },
      {
        "number": "10",
        "name": "ROW7/K8/INT",
        "type": "bidirectional",
        "description": "Row driver output (active high when displaying) and key data input when INT/ROW bit is 0; interrupt output when INT/ROW bit is 1, active low if act bit is 0 and active high if act bit is 1."
      },
      {
        "number": "11",
        "name": "ROW6/K7",
        "type": "bidirectional",
        "description": "Row output, active high when displaying; also key data input with internal pull-low during key scan operation."
      },
      {
        "number": "12",
        "name": "ROW5/K6",
        "type": "bidirectional",
        "description": "Row output, active high when displaying; also key data input with internal pull-low during key scan operation."
      },
      {
        "number": "13",
        "name": "ROW4/K5",
        "type": "bidirectional",
        "description": "Row output, active high when displaying; also key data input with internal pull-low during key scan operation."
      },
      {
        "number": "14",
        "name": "ROW3/K4",
        "type": "bidirectional",
        "description": "Row output, active high when displaying; also key data input with internal pull-low during key scan operation."
      },
      {
        "number": "15",
        "name": "ROW2/K3",
        "type": "bidirectional",
        "description": "Row output, active high when displaying; also key data input with internal pull-low during key scan operation."
      },
      {
        "number": "16",
        "name": "ROW1/K2",
        "type": "bidirectional",
        "description": "Row output, active high when displaying; also key data input with internal pull-low during key scan operation."
      },
      {
        "number": "17",
        "name": "ROW0/K1",
        "type": "bidirectional",
        "description": "Row output, active high when displaying; also key data input with internal pull-low during key scan operation."
      },
      {
        "number": "18",
        "name": "SCL",
        "type": "input",
        "description": "I2C interface serial clock input."
      },
      {
        "number": "19",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C interface serial data input/output."
      },
      {
        "number": "20",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive power supply for logic circuit, operating range 4.5V to 5.5V."
      }
    ],
    "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: Pin numbers were inferred from the text-extracted 20 SOP-A pin assignment drawing on page 5, where t; The COM4-COM7 descriptions are given in the general pin description and are not labelled specificall; The MPN suffix '-20SOP' and the package hint SOP-20 were matched to the 20-pin SOP (300mil) 20 SOP-A"
        ],
        "pages_sent": 24,
        "cost_usd": 0.0958,
        "at": "2026-10-17T14:00:21"
      },
      "datasheet": {
        "url": "https://www.holtek.com.tw/webapi/11842/HT16K33Av111.pdf",
        "pages": 41,
        "sha256": "cd454bec13e5a4d8",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "Holtek Semicon",
      "Package": "SOP-20",
      "Category": "LED Drivers",
      "Pins": "20"
    },
    "characteristics": {
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        {
          "name": "Supply Voltage",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "Printed as VSS-0.3V to VSS+6.5V (referenced to VSS)",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "Printed as VSS-0.3V to VDD+0.3V; min referenced to VSS, max referenced to VDD",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -60,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 8,
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        },
        {
          "name": "Operating Temperature",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VDD Operating Voltage",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": 5,
          "max": 5.5,
          "conditions": "",
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        },
        {
          "name": "Operating Current",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": 2,
          "conditions": "5V No load, normal operation, INT/ROW bit is set to \"0\"",
          "source_page": 8,
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        },
        {
          "name": "Standby Current",
          "symbol": "ISTB",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 1,
          "max": 10,
          "conditions": "5V No load, standby mode",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Input Low Voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "5V SDA, SCL; max printed as 0.3VDD",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Input Leakage Current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN=VSS or VDD",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Input Pull-low Resistor",
          "symbol": "RPL",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 250,
          "typ": null,
          "max": null,
          "conditions": "5V; ROW3/K1~ROW15/K13, ROW0/A2~ROW2/A0; Keyscan during",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Low Level Output Current",
          "symbol": "IOL1",
          "kind": "electrical",
          "unit": "mA",
          "min": 6,
          "typ": null,
          "max": null,
          "conditions": "5V VOL=0.4V; SDA",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "ROW Sink Current",
          "symbol": "IOL2",
          "kind": "electrical",
          "unit": "mA",
          "min": 6,
          "typ": null,
          "max": null,
          "conditions": "5V VOL=0.4V, INT pin",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "ROW Source Current",
          "symbol": "IOH1",
          "kind": "electrical",
          "unit": "mA",
          "min": -20,
          "typ": -25,
          "max": -40,
          "conditions": "5V VOH=VDD-2V, (ROW0~ROW15 pin)",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "ROW Source Current",
          "symbol": "IOH1",
          "kind": "electrical",
          "unit": "mA",
          "min": -25,
          "typ": -30,
          "max": -50,
          "conditions": "5V VOH=VDD-3V, (ROW0~ROW15 pin)",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "ROW Source Current Tolerance",
          "symbol": "Imath",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "5V VOH=VDD-3V, (ROW0~ROW15 pin)",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "COM Sink Current",
          "symbol": "IOL3",
          "kind": "electrical",
          "unit": "mA",
          "min": 160,
          "typ": 200,
          "max": null,
          "conditions": "5V VOL=0.3V, (COM0~COM7 pin)",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "COM Source Current",
          "symbol": "IOH2",
          "kind": "electrical",
          "unit": "mA",
          "min": -20,
          "typ": -25,
          "max": -40,
          "conditions": "5V VOH=VDD-2V, (COM0~COM3 pin)",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "LED Frame Time",
          "symbol": "tLED",
          "kind": "timing",
          "unit": "ms",
          "min": 7.6,
          "typ": 9.5,
          "max": 11.4,
          "conditions": "5V 1/9 Duty",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "VDD OFF Time",
          "symbol": "tOFF",
          "kind": "timing",
          "unit": "ms",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "VDD drop down to 0V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "VDD Slew Rate",
          "symbol": "tSR",
          "kind": "timing",
          "unit": "V/ms",
          "min": null,
          "typ": null,
          "max": 0.05,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Clock Frequency",
          "symbol": "fSCL",
          "kind": "timing",
          "unit": "kHz",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Bus Free Time",
          "symbol": "tBUF",
          "kind": "timing",
          "unit": "μs",
          "min": 1.3,
          "typ": null,
          "max": null,
          "conditions": "Time in which the bus must be free before a new transmission can start",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Start Condition Hold Time",
          "symbol": "tHD:STA",
          "kind": "timing",
          "unit": "μs",
          "min": 0.6,
          "typ": null,
          "max": null,
          "conditions": "After this period, the first clock pulse is generated",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "SCL Low Time",
          "symbol": "tLOW",
          "kind": "timing",
          "unit": "μs",
          "min": 1.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "SCL High Time",
          "symbol": "tHIGH",
          "kind": "timing",
          "unit": "μs",
          "min": 0.6,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Start Condition Setup Time",
          "symbol": "tSU:STA",
          "kind": "timing",
          "unit": "μs",
          "min": 0.6,
          "typ": null,
          "max": null,
          "conditions": "Only relevant for repeated START condition",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Data Hold Time",
          "symbol": "tHD:DAT",
          "kind": "timing",
          "unit": "μs",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Data Setup Time",
          "symbol": "tSU:DAT",
          "kind": "timing",
          "unit": "ns",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Rise Time",
          "symbol": "tR",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "Note",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Fall Time",
          "symbol": "tF",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "Note",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Stop Condition Setup Time",
          "symbol": "tSU:STO",
          "kind": "timing",
          "unit": "μs",
          "min": 0.6,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Output Valid from Clock",
          "symbol": "tAA",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": null,
          "max": 0.9,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input Filter Time Constant (SDA and SCL Pins)",
          "symbol": "tSP",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "Noise suppression time",
          "source_page": 9,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "HT16K33A-20SOP (Holtek Semicon) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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