KEY FEATURES

• Silicon Labs’ first 32-bit Wireless MCUs

• Based on ARM Cortex M3 (LG) and M4

(WG) CPU cores with 256 kB of flash and

32 kB RAM

• Best-in-class RF performance with EZradio

and EZRadioPro transceivers

• Ultra-low power wireless MCU

• Low transmit and receive currents

• Ultra-low power standby and sleep

modes

• Fast wake-up time

• Low energy sensor interface (LESENSE)

• Rich set of peripherals including 12-bit

ADC and DAC, multiple communication

interfaces (UART, SPI, I2C), multiple GPIO

and timers

• AES accelerator with 128/256-bit keys