STC12C5628AD-35I-LQFP32

{
  "schema_version": 1,
  "type": "component",
  "slug": "stc12c5628ad-35i-lqfp32",
  "title": "STC12C5628AD-35I-LQFP32",
  "brief": "STC Micro Microcontroller Units (MCUs/MPUs/SOCs), LQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "embedded processors & controllers",
    "stc12c5628ad-35i-lqfp32",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "STC12C5628AD-35I-LQFP32",
    "manufacturer": "STC Micro",
    "package": "LQFP-32(7x7)",
    "pin_count": 32,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a436178e6f274d32957c267bb6b02700.pdf",
    "parts": {
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    "distributor_links": {
      "lcsc": "C8701"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T18:29:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P3.1/TxD",
        "type": "bidirectional",
        "description": "Standard I/O port P3.1, alternate function UART serial data transmit (TxD)."
      },
      {
        "number": "2",
        "name": "P0.0",
        "type": "bidirectional",
        "description": "Standard I/O port PORT0[0]."
      },
      {
        "number": "3",
        "name": "XTAL2",
        "type": "output",
        "description": "Output of the internal clock inverting amplifier, connects to the other crystal terminal; may be left floating when an external clock drives XTAL1."
      },
      {
        "number": "4",
        "name": "XTAL1",
        "type": "input",
        "description": "Input of the internal clock inverting amplifier, connects to one crystal pin or serves as the external clock source input."
      },
      {
        "number": "5",
        "name": "P3.2/INT0",
        "type": "bidirectional",
        "description": "Standard I/O port P3.2, alternate function external interrupt 0 (falling-edge or low-level triggered)."
      },
      {
        "number": "6",
        "name": "P0.1",
        "type": "bidirectional",
        "description": "Standard I/O port PORT0[1]."
      },
      {
        "number": "7",
        "name": "P3.3/INT1",
        "type": "bidirectional",
        "description": "Standard I/O port P3.3, alternate function external interrupt 1 (falling-edge or low-level triggered)."
      },
      {
        "number": "8",
        "name": "P3.4/T0/ECI",
        "type": "bidirectional",
        "description": "Standard I/O port P3.4, alternate functions Timer/Counter 0 external input (T0) and PCA counter external pulse input (ECI)."
      },
      {
        "number": "9",
        "name": "P3.5/T1/PCA1/PWM1",
        "type": "bidirectional",
        "description": "Standard I/O port P3.5, alternate functions Timer/Counter 1 external input (T1), PCA output 1 and PWM output 1."
      },
      {
        "number": "10",
        "name": "P2.4/PCA3/PWM3",
        "type": "bidirectional",
        "description": "Standard I/O port P2.4, alternate functions PCA output 3 and PWM output 3."
      },
      {
        "number": "11",
        "name": "P2.5",
        "type": "bidirectional",
        "description": "Standard I/O port PORT2[5]."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Power negative terminal, ground."
      },
      {
        "number": "13",
        "name": "P2.6",
        "type": "bidirectional",
        "description": "Standard I/O port PORT2[6]."
      },
      {
        "number": "14",
        "name": "P2.7",
        "type": "bidirectional",
        "description": "Standard I/O port PORT2[7]."
      },
      {
        "number": "15",
        "name": "P3.7/PCA0/PWM0",
        "type": "bidirectional",
        "description": "Standard I/O port P3.7, alternate functions PCA output 0 and PWM output 0."
      },
      {
        "number": "16",
        "name": "P1.0/ADC0/CLKOUT0",
        "type": "bidirectional",
        "description": "Standard I/O port P1.0, ADC input channel 0, or Timer 0 clock output CLKOUT0 when enabled via WAKE_CLKO[0]/T0CLKO."
      },
      {
        "number": "17",
        "name": "P1.1/ADC1/CLKOUT1",
        "type": "bidirectional",
        "description": "Standard I/O port P1.1, ADC input channel 1, or Timer 1 clock output CLKOUT1 when enabled via WAKE_CLKO[1]/T1CLKO."
      },
      {
        "number": "18",
        "name": "P1.2/ADC2",
        "type": "bidirectional",
        "description": "Standard I/O port P1.2 and ADC input channel 2."
      },
      {
        "number": "19",
        "name": "P0.2",
        "type": "bidirectional",
        "description": "Standard I/O port PORT0[2]."
      },
      {
        "number": "20",
        "name": "P1.3/ADC3",
        "type": "bidirectional",
        "description": "Standard I/O port P1.3 and ADC input channel 3."
      },
      {
        "number": "21",
        "name": "P1.4/ADC4/SS",
        "type": "bidirectional",
        "description": "Standard I/O port P1.4, ADC input channel 4, or SPI slave select (SS)."
      },
      {
        "number": "22",
        "name": "P0.3",
        "type": "bidirectional",
        "description": "Standard I/O port PORT0[3]."
      },
      {
        "number": "23",
        "name": "P1.5/ADC5/MOSI",
        "type": "bidirectional",
        "description": "Standard I/O port P1.5, ADC input channel 5, or SPI master-out slave-in (MOSI)."
      },
      {
        "number": "24",
        "name": "P1.6/ADC6/MISO",
        "type": "bidirectional",
        "description": "Standard I/O port P1.6, ADC input channel 6, or SPI master-in slave-out (MISO)."
      },
      {
        "number": "25",
        "name": "P1.7/ADC7/SCLK",
        "type": "bidirectional",
        "description": "Standard I/O port P1.7, ADC input channel 7, or SPI clock (SCLK)."
      },
      {
        "number": "26",
        "name": "P2.0/PCA2/PWM2",
        "type": "bidirectional",
        "description": "Standard I/O port P2.0, alternate functions PCA output 2 and PWM output 2."
      },
      {
        "number": "27",
        "name": "P2.1",
        "type": "bidirectional",
        "description": "Standard I/O port PORT2[1]."
      },
      {
        "number": "28",
        "name": "VCC",
        "type": "power_in",
        "description": "Power positive terminal."
      },
      {
        "number": "29",
        "name": "P2.2",
        "type": "bidirectional",
        "description": "Standard I/O port PORT2[2]."
      },
      {
        "number": "30",
        "name": "P2.3",
        "type": "bidirectional",
        "description": "Standard I/O port PORT2[3]."
      },
      {
        "number": "31",
        "name": "RST",
        "type": "input",
        "description": "Reset pin; held high for at least 24 clocks plus 10us it resets the MCU."
      },
      {
        "number": "32",
        "name": "P3.0/RxD",
        "type": "bidirectional",
        "description": "Standard I/O port P3.0, alternate function UART serial data receive (RxD)."
      }
    ],
    "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",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table on page 20 lists P1.7/ADC7/SCLK as LQFP32 pin 15, which duplicates P3.7 (pin 15). Pin ",
          "1/32 pins cited to the wrong page (name found elsewhere): ['4:XTAL1@p21']"
        ],
        "pages_sent": 92,
        "cost_usd": 0.6973,
        "at": "2026-10-26T18:29:12"
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      "datasheet": {
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        "pages": 449,
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        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 32,
        "described": 32,
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  "metadata": {
    "specs": {
      "Manufacturer": "STC Micro",
      "Package": "LQFP-32(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "32"
    },
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        "quote": "Accumulator contents and the contents of a sixteen-bit base register, which may be either the Data Pointer or the PC. In the latter case, the PC is incremented to the address of the",
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          "kind": "electrical",
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          "min": 150,
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        {
          "name": "Logic 0 input current (P0,P1,P2,P3)",
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          "unit": "uA",
          "min": null,
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          "max": 50,
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          "name": "Logic 1 to 0 transition current (P0,P1,P2,P3)",
          "symbol": "ITL",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 270,
          "max": 600,
          "conditions": "Vpin=2.0V",
          "source_page": 434,
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        {
          "name": "Storage temperature",
          "symbol": "TST",
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          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
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        {
          "name": "Operating temperature (I)",
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          "unit": "℃",
          "min": -40,
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          "conditions": "Industrial",
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        {
          "name": "DC power supply (5V)",
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          "name": "Operating frequency",
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          "min": 0,
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        {
          "name": "Internal R/C oscillator frequency",
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          "min": 5.2,
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        {
          "name": "Power Down Current",
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        {
          "name": "Sink Current for output low (P0,P1,P2,P3)",
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