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General| Clock Speed | 240 MHz |
|---|---|
| SRAM | 320 KB |
| ROM | 128 KB |
| Operating Voltage | 3.0V to 3.6V |
| GPIO Pins | 43 |
| Temperature Sensor | Yes |
| CPU | Xtensa® single-core 32-bit LX7 |
| Flash Memory | Up to 16 MB |
| Wi-Fi | 802.11 b/g/n (2.4 GHz) |
| Security | secure boot, flash encryption |
| Operating Temperature | -40°C to 85°C |
| DAC | 2 channels, 8-bit |
| Touch Sensors | Up to 14 |
| SPI | Up to 4 SPI interfaces |
| I2C | Up to 2 I2C interfaces |
| UART | 3 UARTs |
| USB | USB OTG |
| Peripherals | PWM |
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