STC12C5A60S2-35I-LQFP44

{
  "schema_version": 1,
  "type": "component",
  "slug": "stc12c5a60s2-35i-lqfp44",
  "title": "STC12C5A60S2-35I-LQFP44",
  "brief": "STC Micro Microcontrollers (MCU/MPU/SOC), LQFP-44(10x10). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "mcu",
    "stc12c5a60s2-35i-lqfp44"
  ],
  "component": {
    "mpn": "STC12C5A60S2-35I-LQFP44",
    "manufacturer": "STC Micro",
    "package": "LQFP-44(10x10)",
    "pin_count": 44,
    "category": "MCU",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/02701df9a7b1d205cdff5187053fcc09.pdf",
    "parts": {
      "symbol": "stc12c5a60s2-35i-lqfp44.kicad_sym",
      "footprint": "stc12c5a60s2-35i-lqfp44.kicad_mod",
      "model_3d": "stc12c5a60s2-35i-lqfp44-etched.glb",
      "model_3d_plain": "stc12c5a60s2-35i-lqfp44.glb",
      "model_3d_step": "stc12c5a60s2-35i-lqfp44-etched.step",
      "model_3d_step_plain": "stc12c5a60s2-35i-lqfp44.step",
      "lbr": "stc12c5a60s2-35i-lqfp44.lbr"
    },
    "distributor_links": {
      "lcsc": "C8696"
    },
    "pins": [
      {
        "number": "1",
        "name": "P1.5/MOSI/ADC5",
        "type": "bidirectional",
        "description": "Port 1 bit 5, quasi-bidirectional GPIO after reset. Alternate: SPI MOSI (master-out/slave-in), ADC channel 5 (10-bit, 0-VCC). Drive up to 20 mA per pin."
      },
      {
        "number": "2",
        "name": "P1.6/MISO/ADC6",
        "type": "bidirectional",
        "description": "Port 1 bit 6, quasi-bidirectional GPIO after reset. Alternate: SPI MISO, ADC channel 6."
      },
      {
        "number": "3",
        "name": "P1.7/SCLK/ADC7",
        "type": "bidirectional",
        "description": "Port 1 bit 7, quasi-bidirectional GPIO after reset. Alternate: SPI SCLK, ADC channel 7."
      },
      {
        "number": "4",
        "name": "P4.7/RST",
        "type": "input",
        "description": "Default: active-high external reset input (RST). Can be programmed as P4.7 quasi-bidirectional GPIO via ISP option. Built-in MAX810 reset circuit is available."
      },
      {
        "number": "5",
        "name": "P3.0/RxD",
        "type": "bidirectional",
        "description": "Port 3 bit 0. UART0 receive data (RxD) and also used by the ISP serial-download bootloader."
      },
      {
        "number": "6",
        "name": "P4.3/SCLK/TxD2/CCP1",
        "type": "bidirectional",
        "description": "Port 4 bit 3, quasi-bidirectional GPIO. Alternate: alternate SPI SCLK location, UART2 TxD alternate location, PCA/CCP1 alternate capture/compare pin."
      },
      {
        "number": "7",
        "name": "P3.1/TxD",
        "type": "bidirectional",
        "description": "Port 3 bit 1. UART0 transmit data (TxD) and used by the ISP serial-download bootloader."
      },
      {
        "number": "8",
        "name": "P3.2/INT0",
        "type": "bidirectional",
        "description": "Port 3 bit 2. Alternate: external interrupt 0 (INT0), can wake MCU from power-down."
      },
      {
        "number": "9",
        "name": "P3.3/INT1",
        "type": "bidirectional",
        "description": "Port 3 bit 3. Alternate: external interrupt 1 (INT1), can wake MCU from power-down."
      },
      {
        "number": "10",
        "name": "P3.4/T0/CLKOUT0",
        "type": "bidirectional",
        "description": "Port 3 bit 4. Alternate: Timer 0 external input (T0), programmable clock output CLKOUT0 (T0 overflow)."
      },
      {
        "number": "11",
        "name": "P3.5/T1/CLKOUT1",
        "type": "bidirectional",
        "description": "Port 3 bit 5. Alternate: Timer 1 external input (T1), programmable clock output CLKOUT1 (T1 overflow)."
      },
      {
        "number": "12",
        "name": "P3.6/WR",
        "type": "bidirectional",
        "description": "Port 3 bit 6. Alternate: external data memory write strobe (WR) when external bus is used."
      },
      {
        "number": "13",
        "name": "P3.7/RD",
        "type": "bidirectional",
        "description": "Port 3 bit 7. Alternate: external data memory read strobe (RD) when external bus is used."
      },
      {
        "number": "14",
        "name": "XTAL2",
        "type": "output",
        "description": "Crystal oscillator output (drives external crystal from internal inverter). Leave open if using internal RC oscillator."
      },
      {
        "number": "15",
        "name": "XTAL1",
        "type": "input",
        "description": "Crystal oscillator input (or external clock input). Typical loading caps 15-47 pF. Drive with external clock or leave open if using internal RC oscillator."
      },
      {
        "number": "16",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / VSS. Common return for digital and analog supplies."
      },
      {
        "number": "17",
        "name": "P4.0/SS",
        "type": "bidirectional",
        "description": "Port 4 bit 0. Alternate: SPI slave select (SS) alternate location."
      },
      {
        "number": "18",
        "name": "P2.0",
        "type": "bidirectional",
        "description": "Port 2 bit 0, quasi-bidirectional GPIO (also A8 of external address bus when external memory is used)."
      },
      {
        "number": "19",
        "name": "P2.1",
        "type": "bidirectional",
        "description": "Port 2 bit 1, quasi-bidirectional GPIO (also A9 of external address bus)."
      },
      {
        "number": "20",
        "name": "P2.2",
        "type": "bidirectional",
        "description": "Port 2 bit 2, quasi-bidirectional GPIO (also A10 of external address bus)."
      },
      {
        "number": "21",
        "name": "P2.3",
        "type": "bidirectional",
        "description": "Port 2 bit 3, quasi-bidirectional GPIO (also A11 of external address bus)."
      },
      {
        "number": "22",
        "name": "P2.4",
        "type": "bidirectional",
        "description": "Port 2 bit 4, quasi-bidirectional GPIO (also A12 of external address bus)."
      },
      {
        "number": "23",
        "name": "P2.5",
        "type": "bidirectional",
        "description": "Port 2 bit 5, quasi-bidirectional GPIO (also A13 of external address bus)."
      },
      {
        "number": "24",
        "name": "P2.6",
        "type": "bidirectional",
        "description": "Port 2 bit 6, quasi-bidirectional GPIO (also A14 of external address bus)."
      },
      {
        "number": "25",
        "name": "P2.7",
        "type": "bidirectional",
        "description": "Port 2 bit 7, quasi-bidirectional GPIO (also A15 of external address bus)."
      },
      {
        "number": "26",
        "name": "P0.7",
        "type": "bidirectional",
        "description": "Port 0 bit 7, quasi-bidirectional GPIO (also AD7 of external multiplexed address/data bus)."
      },
      {
        "number": "27",
        "name": "P0.6",
        "type": "bidirectional",
        "description": "Port 0 bit 6, quasi-bidirectional GPIO (also AD6)."
      },
      {
        "number": "28",
        "name": "P0.5",
        "type": "bidirectional",
        "description": "Port 0 bit 5, quasi-bidirectional GPIO (also AD5)."
      },
      {
        "number": "29",
        "name": "P0.4",
        "type": "bidirectional",
        "description": "Port 0 bit 4, quasi-bidirectional GPIO (also AD4)."
      },
      {
        "number": "30",
        "name": "P4.4",
        "type": "bidirectional",
        "description": "Port 4 bit 4, quasi-bidirectional GPIO. Marked NA (no alternate function) in this variant."
      },
      {
        "number": "31",
        "name": "P4.5/ALE",
        "type": "bidirectional",
        "description": "Port 4 bit 5. Alternate: ALE (address-latch-enable) for external memory bus."
      },
      {
        "number": "32",
        "name": "P4.1/ECI/MOSI",
        "type": "bidirectional",
        "description": "Port 4 bit 1. Alternate: PCA external clock input (ECI), SPI MOSI alternate location."
      },
      {
        "number": "33",
        "name": "P4.6/EX_LVD/RST2",
        "type": "bidirectional",
        "description": "Port 4 bit 6. Alternate: external low-voltage-detect comparator input EX_LVD (threshold ~1.32 V on 5 V parts, ~1.30 V on 3.3 V parts), and second reset input (RST2) with programmable threshold."
      },
      {
        "number": "34",
        "name": "P0.3",
        "type": "bidirectional",
        "description": "Port 0 bit 3, quasi-bidirectional GPIO (also AD3)."
      },
      {
        "number": "35",
        "name": "P0.2",
        "type": "bidirectional",
        "description": "Port 0 bit 2, quasi-bidirectional GPIO (also AD2)."
      },
      {
        "number": "36",
        "name": "P0.1",
        "type": "bidirectional",
        "description": "Port 0 bit 1, quasi-bidirectional GPIO (also AD1)."
      },
      {
        "number": "37",
        "name": "P0.0",
        "type": "bidirectional",
        "description": "Port 0 bit 0, quasi-bidirectional GPIO (also AD0)."
      },
      {
        "number": "38",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply. 3.3-5.5 V for STC12C5A60S2 (5 V parts); 2.2-3.6 V for STC12LE5A60S2 (3.3 V parts). Decouple with 10 uF bulk + 0.1 uF to GND close to the pin."
      },
      {
        "number": "39",
        "name": "P4.2/MISO/RxD2/CCP0",
        "type": "bidirectional",
        "description": "Port 4 bit 2. Alternate: SPI MISO alternate location, UART2 RxD alternate location, PCA/CCP0 alternate capture/compare pin."
      },
      {
        "number": "40",
        "name": "P1.0/ADC0/CLKOUT2",
        "type": "bidirectional",
        "description": "Port 1 bit 0. Alternate: ADC channel 0 (10-bit), programmable clock output CLKOUT2 (baud-rate-generator overflow)."
      },
      {
        "number": "41",
        "name": "P1.1/ADC1",
        "type": "bidirectional",
        "description": "Port 1 bit 1. Alternate: ADC channel 1."
      },
      {
        "number": "42",
        "name": "P1.2/RxD2/ECI/ADC2",
        "type": "bidirectional",
        "description": "Port 1 bit 2. Alternate: UART2 RxD (default location), PCA external clock input (ECI), ADC channel 2."
      },
      {
        "number": "43",
        "name": "P1.3/TxD2/CCP0/ADC3",
        "type": "bidirectional",
        "description": "Port 1 bit 3. Alternate: UART2 TxD (default location), PCA/CCP0 (default location), ADC channel 3."
      },
      {
        "number": "44",
        "name": "P1.4/SS/CCP1/ADC4",
        "type": "bidirectional",
        "description": "Port 1 bit 4. Alternate: SPI slave select (SS, default), PCA/CCP1 (default location), ADC channel 4."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/02701df9a7b1d205cdff5187053fcc09.pdf",
        "pages": 1543,
        "sha256": "7fde44da8887b7a0",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 44,
        "described": 44,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -5.6625,
        -4
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "LQFP-44_10x10mm_P0.8mm@sha256:a24003d5101dbf25",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "stc12c5a60s2-35i-lqfp44.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "81aae6270b5c742bed79a8a35e9adf7fbed97c42e341e6b25ab20c1783b93b5d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stc12c5a60s2-35i-lqfp44-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "03db16e5cad5dfc7bed50be06ce94f84a0b3cb51e8776085b23f65bf2d175474",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STC Micro",
      "Package": "LQFP-44(10x10)",
      "Category": "MCU",
      "Pins": "44"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "stc12c5a60s2-35i-lqfp44"
  ],
  "discovery_pitch": "STC12C5A60S2-35I-LQFP44 (STC Micro) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stc12c5a60s2-35i-lqfp44.kicad_sym",
    "stc12c5a60s2-35i-lqfp44.kicad_mod",
    "stc12c5a60s2-35i-lqfp44.glb",
    "stc12c5a60s2-35i-lqfp44.step",
    "stc12c5a60s2-35i-lqfp44-etched.step",
    "stc12c5a60s2-35i-lqfp44.lbr",
    "docs/hero.png",
    "docs/stc12c5a60s2-35i-lqfp44-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "STC12C5A60S2-35I-LQFP44",
      "kind": "packaging"
    },
    {
      "mpn": "STC12C5A60S2-35I-LQFP44PDIP40",
      "kind": "packaging"
    },
    {
      "mpn": "STC12C5A60S2-35I-LQFP48",
      "kind": "unknown"
    },
    {
      "mpn": "STC12C5A60S2-35I-LQFP44PLCC44",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T08:27:45.793Z"
}