[
  {
    "numero": "1",
    "nome": "ANT",
    "tipo": "analog",
    "funcoes": [
      "RF antenna connection (Wi-Fi and Bluetooth)"
    ],
    "categorias": [
      "Antenna",
      "RF"
    ],
    "avisos": [
      "Dedicated RF pin. Avoid long traces without 50-ohm impedance matching."
    ]
  },
  {
    "numero": "2",
    "nome": "VDDA3P3",
    "tipo": "power",
    "funcoes": [
      "Analog power supply de 3.3V"
    ],
    "categorias": [
      "Power"
    ],
    "avisos": [
      "Recommended voltage: 3.3V (3.0V to 3.6V)",
      "Powers analog and RF circuits of the chip"
    ]
  },
  {
    "numero": "3",
    "nome": "VDDA3P3",
    "tipo": "power",
    "funcoes": [
      "Analog power supply de 3.3V"
    ],
    "categorias": [
      "Power"
    ],
    "avisos": [
      "Recommended voltage: 3.3V (3.0V to 3.6V)",
      "Powers analog and RF circuits of the chip"
    ]
  },
  {
    "numero": "4",
    "nome": "GPIO0",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_RTC"
    ],
    "funcoes": [
      "GPIO0",
      "ADC1_CH0"
    ],
    "categorias": [
      "GPIO",
      "ADC"
    ],
    "avisos": [
      "Analog input pin ADC1 Channel 0"
    ]
  },
  {
    "numero": "5",
    "nome": "GPIO1",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_RTC"
    ],
    "funcoes": [
      "GPIO1",
      "ADC1_CH1"
    ],
    "categorias": [
      "GPIO",
      "ADC"
    ],
    "avisos": [
      "Analog input pin ADC1 Channel 1"
    ]
  },
  {
    "numero": "6",
    "nome": "GPIO2",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_RTC"
    ],
    "funcoes": [
      "GPIO2",
      "ADC1_CH2",
      "FSPIQ"
    ],
    "categorias": [
      "GPIO",
      "ADC",
      "SPI"
    ],
    "avisos": [
      "Mapped to SPI MISO (FSPIQ) by default during flash initialization"
    ]
  },
  {
    "numero": "7",
    "nome": "CHIP_EN",
    "tipo": "analog",
    "funcoes": [
      "Enable chip (Power-up / Reset)"
    ],
    "categorias": [
      "Power"
    ],
    "avisos": [
      "Active High. Pull high to enable chip boot.",
      "Do not leave this pin floating. Use an external RC delay circuit for stable boot."
    ]
  },
  {
    "numero": "8",
    "nome": "GPIO3",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_RTC"
    ],
    "funcoes": [
      "GPIO3",
      "ADC1_CH3"
    ],
    "categorias": [
      "GPIO",
      "ADC"
    ],
    "avisos": [
      "Analog input pin ADC1 Channel 3"
    ]
  },
  {
    "numero": "9",
    "nome": "GPIO4",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_RTC"
    ],
    "funcoes": [
      "GPIO4",
      "MTMS",
      "FSPIQ",
      "ADC1_CH4"
    ],
    "categorias": [
      "GPIO",
      "JTAG",
      "SPI",
      "ADC"
    ],
    "avisos": [
      "Multifunction pin: JTAG MTMS, SPI2 MISO, and ADC1 Channel 4.",
      "Can be used for JTAG debugging together with other JTAG pins."
    ]
  },
  {
    "numero": "10",
    "nome": "GPIO5",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_RTC"
    ],
    "funcoes": [
      "GPIO5",
      "MTDI",
      "FSPIWP"
    ],
    "categorias": [
      "GPIO",
      "JTAG",
      "SPI"
    ],
    "avisos": [
      "Multifunction pin: JTAG MTDI and SPI2 Write Protect (FSPIWP)."
    ]
  },
  {
    "numero": "11",
    "nome": "VDD3P3_RTC",
    "tipo": "power",
    "funcoes": [
      "RTC domain and low-power I/O power supply"
    ],
    "categorias": [
      "Power"
    ],
    "avisos": [
      "Recommended voltage: 3.3V"
    ]
  },
  {
    "numero": "12",
    "nome": "GPIO6",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_RTC"
    ],
    "funcoes": [
      "GPIO6",
      "MTCK",
      "FSPICLK"
    ],
    "categorias": [
      "GPIO",
      "JTAG",
      "SPI"
    ],
    "avisos": [
      "Multifunction pin: JTAG MTCK and SPI2 Clock (FSPICLK)."
    ]
  },
  {
    "numero": "13",
    "nome": "GPIO7",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_RTC"
    ],
    "funcoes": [
      "GPIO7",
      "MTDO",
      "FSPID"
    ],
    "categorias": [
      "GPIO",
      "JTAG",
      "SPI"
    ],
    "avisos": [
      "Multifunction pin: JTAG MTDO and SPI2 MOSI (FSPID)."
    ]
  },
  {
    "numero": "14",
    "nome": "GPIO8",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_CPU"
    ],
    "funcoes": [
      "GPIO8"
    ],
    "categorias": [
      "GPIO",
      "Strapping"
    ],
    "avisos": [
      "Strapping pin for boot control.",
      "Together with GPIO9, selects SoC boot mode (must be high/1 during reset for Joint Download Boot if GPIO9=0)."
    ]
  },
  {
    "numero": "15",
    "nome": "GPIO9",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_CPU"
    ],
    "funcoes": [
      "GPIO9"
    ],
    "categorias": [
      "GPIO",
      "Strapping"
    ],
    "avisos": [
      "Primary Strapping pin. High level (1) at reset activates SPI Boot (default via weak pull-up).",
      "Low level (0) at reset puts chip into UART/SPI download mode."
    ]
  },
  {
    "numero": "16",
    "nome": "GPIO10",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_CPU"
    ],
    "funcoes": [
      "GPIO10",
      "FSPICS0"
    ],
    "categorias": [
      "GPIO",
      "SPI"
    ],
    "avisos": [
      "Multifunction pin: SPI2 Chip Select 0 (FSPICS0)."
    ]
  },
  {
    "numero": "17",
    "nome": "VDD3P3_CPU",
    "tipo": "power",
    "funcoes": [
      "Digital power supply da CPU e IOs correspondentes (3.3V)"
    ],
    "categorias": [
      "Power"
    ],
    "avisos": [
      "Recommended voltage: 3.3V"
    ]
  },
  {
    "numero": "18",
    "nome": "GPIO18",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_CPU"
    ],
    "funcoes": [
      "GPIO18"
    ],
    "categorias": [
      "GPIO"
    ]
  },
  {
    "numero": "19",
    "nome": "GPIO19",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_CPU"
    ],
    "funcoes": [
      "GPIO19",
      "U0RXD"
    ],
    "categorias": [
      "GPIO",
      "UART"
    ],
    "avisos": [
      "UART0 receive pin (Serial RX by default for flashing and monitoring)."
    ]
  },
  {
    "numero": "20",
    "nome": "GPIO20",
    "tipo": "io",
    "alimentacao": [
      "VDD3P3_CPU"
    ],
    "funcoes": [
      "GPIO20",
      "U0TXD"
    ],
    "categorias": [
      "GPIO",
      "UART"
    ],
    "avisos": [
      "UART0 transmit pin (Serial TX by default for flashing and monitoring)."
    ]
  },
  {
    "numero": "21",
    "nome": "VDDA",
    "tipo": "power",
    "funcoes": [
      "3.3V analog input power supply"
    ],
    "categorias": [
      "Power"
    ]
  },
  {
    "numero": "22",
    "nome": "XTAL_N",
    "tipo": "analog",
    "funcoes": [
      "External crystal oscillator connection (Output)"
    ],
    "categorias": [
      "Clock"
    ]
  },
  {
    "numero": "23",
    "nome": "XTAL_P",
    "tipo": "analog",
    "funcoes": [
      "External crystal oscillator connection (Input)"
    ],
    "categorias": [
      "Clock"
    ]
  },
  {
    "numero": "24",
    "nome": "VDDA",
    "tipo": "power",
    "funcoes": [
      "3.3V analog input power supply"
    ],
    "categorias": [
      "Power"
    ]
  },
  {
    "numero": "25",
    "nome": "GND",
    "tipo": "power",
    "funcoes": [
      "Center ground pad (Exposed Pad)"
    ],
    "categorias": [
      "Power"
    ],
    "avisos": [
      "Must be properly soldered to the PCB ground plane (GND) for stable performance and thermal dissipation."
    ]
  }
]