ad156b2

{
  "slug": "ad156b2",
  "version": "0.1.0",
  "type": "component",
  "description": "JieLi Tech Microcontrollers (MCU/MPU/SOC), QFN-32(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "ad156b2"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ad156b2.kicad_sym",
    "ad156b2.kicad_mod",
    "ad156b2.glb",
    "ad156b2.step",
    "ad156b2.lbr",
    "docs/hero.png",
    "docs/ad156b2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": "public",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "component": {
    "mpn": "AD156B2",
    "manufacturer": "JieLi Tech",
    "package": "QFN-32(4x4)",
    "pin_count": 33,
    "category": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603393239609733120",
    "parts": {
      "symbol": "ad156b2.kicad_sym",
      "footprint": "ad156b2.kicad_mod",
      "model_3d": "ad156b2-etched.glb",
      "model_3d_plain": "ad156b2.glb",
      "model_3d_step": "ad156b2-etched.step",
      "model_3d_step_plain": "ad156b2.step",
      "lbr": "ad156b2.lbr"
    },
    "pins": [
      {
        "number": "1",
        "name": "PA1",
        "type": "bidirectional",
        "description": "General-purpose I/O with 8 mA / 64 mA high-drive capability. Muxable functions: ADC1 (ADC input ch. 1), SPI0CLKB (SPI0 clock B), SD0CLKA (SD0 clock A), UART0RXB (UART0 data-in B), I2C_SCL(B), CAP2 (Timer2 capture)."
      },
      {
        "number": "2",
        "name": "PA0",
        "type": "bidirectional",
        "description": "General-purpose I/O with internal pull-up (10 kΩ typ). Muxable functions: Long-Press Reset, ADC0 (ADC input ch. 0), UART0TXB (UART0 data-out B). Drive 8 mA / 64 mA (high drive)."
      },
      {
        "number": "3",
        "name": "VDDIO",
        "type": "power_out",
        "description": "Digital power rail / internal linear regulator output. Typical output 3.0 V (range 2.0-3.4 V) at VBAT = 3.7 V, 100 mA load. Requires external decoupling capacitor to VSS."
      },
      {
        "number": "4",
        "name": "VBAT",
        "type": "power_in",
        "description": "Main battery power-supply input. Operating range 2.0-5.5 V (typ 3.7 V). Absolute max 5.5 V."
      },
      {
        "number": "5",
        "name": "HPVDD",
        "type": "power_in",
        "description": "Class-D audio power-amplifier supply. Operating range up to 5.5 V (absolute max 5.5 V). Typically tied to VBAT via a bead/RC filter."
      },
      {
        "number": "6",
        "name": "DACP",
        "type": "output",
        "description": "Class-D audio power-amplifier positive output (0.5 W). Drives one side of the speaker load in BTL configuration with DACN."
      },
      {
        "number": "7",
        "name": "DACN/PB11",
        "type": "bidirectional",
        "description": "Dual-function pin. Primary: Class-D APA negative output (BTL pair with DACP). Alternate: PB11 GPIO (I/O, 8 mA, high-voltage resistance) with OSCIB (crystal oscillator input B) function."
      },
      {
        "number": "8",
        "name": "PB10",
        "type": "bidirectional",
        "description": "General-purpose I/O with internal pull-up (default), 8 mA drive, high-voltage resistance. Alternate function MCLR (active-low master clear/reset, 0 effective)."
      },
      {
        "number": "9",
        "name": "PB9",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA drive, high-voltage resistance. Muxable functions: SPI1DOD (SPI1 data-out D), UART1TRXB (UART1 data in/out B), I2C_SDA(D), CAP1 (Timer1 capture)."
      },
      {
        "number": "10",
        "name": "PB8",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA drive, high-voltage resistance. Muxable functions: SPI1CLKD (SPI1 clock D), I2C_SCL(D), OSCIA (crystal oscillator input A)."
      },
      {
        "number": "11",
        "name": "PB7",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Alternate function SPI1DID (SPI1 data-in D)."
      },
      {
        "number": "12",
        "name": "PB6",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Alternate function SD0DATC (SD0 data C)."
      },
      {
        "number": "13",
        "name": "PB5",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: ADC13 (ADC input ch. 13), SD0CMDC (SD0 command C)."
      },
      {
        "number": "14",
        "name": "PB4",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: ADC12 (ADC input ch. 12), SD0CLKC (SD0 clock C)."
      },
      {
        "number": "15",
        "name": "PB3",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Alternate function TDM_MCLK (TDM master clock)."
      },
      {
        "number": "16",
        "name": "PB2",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: SPI1DIA (SPI1 data-in A), SD0DATB (SD0 data B), TDM_DAT."
      },
      {
        "number": "17",
        "name": "PB1",
        "type": "bidirectional",
        "description": "General-purpose I/O with internal pull-down (default), 8 mA / 64 mA high-drive capability. Muxable functions: ADC11 (ADC input ch. 11), SPI1DOA (SPI1 data-out A), SD0CMDB (SD0 command B), I2C_SDA(A), TDM_SYN."
      },
      {
        "number": "18",
        "name": "PB0",
        "type": "bidirectional",
        "description": "General-purpose I/O with internal pull-down (default), 8 mA / 64 mA high-drive capability. Muxable functions: ADC10 (ADC input ch. 10), SPI1CLKA (SPI1 clock A), SD0CLKB (SD0 clock B), I2C_SCL(A), TDM_CLK."
      },
      {
        "number": "19",
        "name": "PA15",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: ADC9 (ADC input ch. 9), SPI1DOB (SPI1 data-out B), MCAP3 (Motor Timer3 capture)."
      },
      {
        "number": "20",
        "name": "PA14",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: ADC8 (ADC input ch. 8), SPI1CLKB (SPI1 clock B), CAP0 (Timer0 capture), MCAP2 (Motor Timer2 capture)."
      },
      {
        "number": "21",
        "name": "PA13",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: SPI1DIB (SPI1 data-in B), TMR1 (Timer1 clock in), MCAP1 (Motor Timer1 capture)."
      },
      {
        "number": "22",
        "name": "PA12",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Alternate function MPWM3 (PWM channel 3 output)."
      },
      {
        "number": "23",
        "name": "PA11",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: TMR0 (Timer0 clock in), MPWM2 (PWM channel 2 output)."
      },
      {
        "number": "24",
        "name": "PA10",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. No alternate function documented."
      },
      {
        "number": "25",
        "name": "PA9",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. No alternate function documented."
      },
      {
        "number": "26",
        "name": "PA8",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: SPI1DIC (SPI1 data-in C), SD0DATD (SD0 data D)."
      },
      {
        "number": "27",
        "name": "PA7",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: ADC7 (ADC input ch. 7), SPI1DOC (SPI1 data-out C), SD0CMDD (SD0 command D), UART0RXA (UART0 data-in A), I2C_SDA(C), MPWM1 (PWM channel 1 output)."
      },
      {
        "number": "28",
        "name": "PA6",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: ADC6 (ADC input ch. 6), SPI1CLKC (SPI1 clock C), SD0CLKD (SD0 clock D), UART0TXA (UART0 data-out A), I2C_SCL(C), TMR2 (Timer2 clock in), MPWM0 (PWM channel 0 output)."
      },
      {
        "number": "29",
        "name": "PA5",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: ADC5 (ADC input ch. 5), SPI0DAT3 (SPI0 data 3), UART1RXA (UART1 data-in A)."
      },
      {
        "number": "30",
        "name": "PA4",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: ADC4 (ADC input ch. 4), SPI0DAT2 (SPI0 data 2), UART1TXA (UART1 data-out A), LVD (low-voltage detect)."
      },
      {
        "number": "31",
        "name": "PA3",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: ADC3 (ADC input ch. 3), SPI0DIB(1) (SPI0 data1 in B), SD0DATA (SD0 data A), CLKOUT, PWM2(A), MCAP0 (Motor Timer0 capture)."
      },
      {
        "number": "32",
        "name": "PA2",
        "type": "bidirectional",
        "description": "General-purpose I/O, 8 mA / 64 mA high-drive capability. Muxable functions: ADC2 (ADC input ch. 2), SPI0DOB(0) (SPI0 data0 out B), SD0CMDA (SD0 command A), I2C_SDA(B), PWM2(B)."
      },
      {
        "number": "PAD",
        "name": "VSS",
        "type": "power_in",
        "description": "Exposed thermal/ground pad on the underside of the QFN-32 package. Must be soldered to the PCB ground plane for both electrical ground return and thermal dissipation.",
        "thermal_pad": true
      }
    ],
    "provenance": {
      "rebuilt": "component block rebuilt 2026-10-05 from this page's own README pinout table and .kicad_sym (pins cross-checked), no re-extraction"
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ad156b2.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.6
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7b482a511cdf2cf875c31931f9fea7f745b8dac2ea6203531cd6604f40a290cb",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ad156b2-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.6
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c18a6a7f68851181df599b1dad4759b0d73cf36dce8ee2f39f8d008d1e3d9b47",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}