EFM32 Family EFM32TG Series Microcontrollers ARM Microcontrollers:

Available in packages as small as 4 mm x 4 mm, the Silicon Labs energy efficient Tiny Gecko MCUs consume as little as 150 μA/MHz in run mode, and as little as 1 μA with a real time counter running. Often used for energy sensitive applications, the EFM32™ Tiny Gecko 32-bit microcontrollers offer low power benefits such as brown-out, full RAM, and register retention.

• ARM Cortex-M3 Core, Clocked Upto 32MHz
• FLASH: Upto 32KB, RAM: Upto 4KB
• Interfaces: USART, SPI, I2S, I2C
• Hardware AES with 128/256-Bit encryption/decryption
• Upto 56 GPIO
• Configurable LCD Controller driving up to 8x20 segments
• Low Energy Sensor Interface (LESENSE)
• Temperature range: ?40° to 85 °C
• Pulse counter
• Applications: Energy Monitoring, Smart accessories, Industrial and home automation.