EFR32MG1 Based Modules (Series 1)

zigbee and Thread Radio:

• 2.4 GHz IEEE 802.15.4
• 250 kbps O-QPSK DSSS
• -99 dBm Receive Sensitivity
• +10 dBm Programmable Output Power
• 9.8 mA RX current
• 8.2 mA Active-mode TX at 0 dBm

Microcontroller:

• ARM Cortex®-M4 
• Up to 40 MHz Clock Speed
• Low Active Mode Current: 63 µA/MHz
• 256 kB of Programmable Flash
• 32 kB RAM SRAM
  

Rich Analog and Digital Peripherals:

• AES256/128 Hardware Crypto Accelerator with ECC, SHA-1, SHA-2
• ADC (12-bit, 1 Msps, 326 µA)
• Current DAC (4-bit, Current Source or Sink)
• 2 X Analog Comparator
• Low Energy UART
• 2 X USART (UART, SPI, IrDA, I2S)
• 12C (Address recognition down to EM3)
• Timers: RTCC, LE Timer & Pulse Counter
• 12-channel Peripheral Reflex System
• Up to 25 GPIO

Energy Efficient Low Power Modes:

• Energy Mode 2 (Deep Sleep) Current: 2.5 µA
• Ultra-fast wake up: 3 µS from EM3
• Wide Supply Voltage range of 1.85 to 3.8 V

Dimensions:

• 12.9 mm x 15.0 mm x 2.2 mm