32-bit RISC-V MCU & 2.4 GHz Wi-Fi 6 & Bluetooth 5 (LE) & IEEE 802.15.4 

• 32-bit RISC-V single-core processor that operates at up to 160 MHz
• State-of-the-art power and RF performance
• 320 KB ROM, 512 KB SRAM, 16 KB Low-power SRAM on the chip, and works with external flash
• 30 (QFN40) or 22 (QFN32) programmable GPIOs, with support for SPI, UART, I2C, I2S, RMT, TWAI and PWM