AC1042A2

{
  "slug": "ac1042a2",
  "version": "0.1.0",
  "type": "component",
  "description": "JieLi Tech Microcontrollers (MCU/MPU/SOC), SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "ac1042a2",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ac1042a2.kicad_sym",
    "ac1042a2.kicad_mod",
    "ac1042a2.glb",
    "ac1042a2.step",
    "ac1042a2.lbr",
    "docs/hero.png",
    "docs/ac1042a2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ac1042a2-hero.glb",
    "ac1042a2-hero.overlay.json",
    "ac1042a2-etched.glb"
  ],
  "component": {
    "mpn": "AC1042A2",
    "manufacturer": "JieLi Tech",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603346775176454144",
    "parts": {
      "symbol": "ac1042a2.kicad_sym",
      "footprint": "ac1042a2.kicad_mod",
      "model_3d": "ac1042a2-hero.glb",
      "model_3d_plain": "ac1042a2-etched.glb",
      "model_3d_step": "ac1042a2-etched.step",
      "model_3d_step_plain": "ac1042a2.step",
      "lbr": "ac1042a2.lbr"
    },
    "distributor_links": {
      "lcsc": "C22440793"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T17:28:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PB0",
        "type": "bidirectional",
        "description": "General-purpose I/O with 8 mA normal and 64 mA high drive, also usable as the DAC analog audio output, ADC channel 13, or the low-voltage detect input."
      },
      {
        "number": "2",
        "name": "VSSIO",
        "type": "power_in",
        "description": "Digital ground for the I/O domain."
      },
      {
        "number": "3",
        "name": "VDDIO",
        "type": "power_out",
        "description": "GPIO power rail whose PMU output is specified at 2.0 V min, 3.0 V typ, 3.4 V max with up to 100 mA loading."
      },
      {
        "number": "4",
        "name": "VBAT",
        "type": "power_in",
        "description": "Battery power supply input specified from 2.0 V min to 5.5 V max (3.7 V typ)."
      },
      {
        "number": "5",
        "name": "PA2/PA12",
        "type": "bidirectional",
        "description": "Shared GPIO pin (8 mA normal / 64 mA high drive) that multiplexes PA2 (ADC2, SPI0DOB, SD0CMDA, I2C_SDA(B), PWM2H) and PA12 (I2S_LRCK, SPI1DOB, SD0CMDB, MCAP3)."
      },
      {
        "number": "6",
        "name": "PA11",
        "type": "bidirectional",
        "description": "General-purpose I/O (8 mA / 64 mA high drive) also usable as ADC9, I2S_SCLK, SPI1CLKB, SD0CLKB, or MCAP2."
      },
      {
        "number": "7",
        "name": "PA10",
        "type": "bidirectional",
        "description": "General-purpose I/O (8 mA / 64 mA high drive) also usable as ADC8, I2S_DAT3, SPI1DIB, SD0DATB, TMR1 clock input, or MCAP1."
      },
      {
        "number": "8",
        "name": "PA9",
        "type": "bidirectional",
        "description": "High-voltage-resistant GPIO rated 8 mA that also provides I2S_DAT2, UART1TXB/RXB, I2C_SDA(D), CAP1, or PWM3."
      },
      {
        "number": "9",
        "name": "USBDM",
        "type": "bidirectional",
        "description": "USB full-speed negative data line with internal pull-down, rated 10 mA, which can also be configured as a normal I/O pin and used as ADC5, SPI1DOA, SD0DATC, UART1TXA, or I2C_SDA(A)."
      },
      {
        "number": "10",
        "name": "USBDP",
        "type": "bidirectional",
        "description": "USB full-speed positive data line with internal pull-down, rated 10 mA, which can also be configured as a normal I/O pin and used as ADC4, SPI1CLKA, UART1RXA, or I2C_SCL(A)."
      },
      {
        "number": "11",
        "name": "PA0",
        "type": "bidirectional",
        "description": "GPIO (8 mA / 64 mA high drive) with default pull-up, also providing the long-press reset function, ADC0, and UART0TXB."
      },
      {
        "number": "12",
        "name": "PA15/PA14",
        "type": "bidirectional",
        "description": "Shared GPIO pin (8 mA / 64 mA high drive) that multiplexes PA15 (ADC12, MIC_LDO microphone power output) and PA14 (ADC11, AUX1 analog channel 1 input)."
      },
      {
        "number": "13",
        "name": "PA13",
        "type": "bidirectional",
        "description": "General-purpose I/O (8 mA / 64 mA high drive) also usable as ADC10, AUX0 analog input, MIC_BIAS microphone bias output, or CAP0 timer capture."
      },
      {
        "number": "14",
        "name": "PB1",
        "type": "bidirectional",
        "description": "General-purpose I/O (8 mA / 64 mA high drive) that also serves as the MIC input channel."
      },
      {
        "number": "15",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "16",
        "name": "VCOM",
        "type": "passive",
        "description": "Analog reference pin; the datasheet gives no voltage or loading limits for it."
      }
    ],
    "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: Table 1-1 and the Figure 1-1 pin labels show two GPIO names on pin 5 (PA2/PA12) and on pin 12 (PA15/; Pin 3 (VDDIO) is listed as a power (P) pin in Table 1-1 but described as a voltage output in the PMU; Pin types for GPIO/USB pins are mapped from the datasheet's I/O classification to KiCad bidirectiona"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0391,
        "at": "2026-10-20T17:26:46"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603346775176454144",
        "pages": 9,
        "sha256": "ec76044fefdda2ae",
        "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": "ac1042a2.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ac1042a2-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ad58bc78a30de29f5b24f827078dc8cb70e0c710dd3fc6621dbc068a133fc694",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}