Each ATSAMR30 device is an ultra low-power microcontroller equipped with an IEEE^® 802.15.4 compliant radio for the sub-1GHz frequency bands 780 MHz (China), 868 MHz (Europe) and 915 MHz (North America). It uses the 32-bit ARM^® Cortex®-M0+ processor and offers 256KB of Flash and 40KB of SRAM (8KB battery backed) in as small as a 5mm QFN32 package. Advanced power management technologies, such as power domain gating, SleepWalking, and ultra low-power peripherals allow for very low power performance and long battery life sensor applications. The ATSAMR30 typically draws less than 700nA at 1.8v battery supply with wake on GPIO, Serial Communication or Real Time Counter.  

The highly configurable peripherals includes up to 5 I2C/SPI /UART interfaces with one in the low power domain, 8 12-bit ADC channels, 48 capacitive touch channels with proximity sensing. The sub-GHz Radio supports BPSK and O-QPSK modulation and delivers up to 11dBm TX power with an RX sensitivity of -110dBm. 

For product comparison, please consider: ATSAMR30M18

• Cortex M0+ MCU + Sub-GHz Transceiver in a single package
• 256 KB flash / 32KB RAM
• 8 KB Low Power Mode retained RAM
• USB Host and Device
• Ultra-low power consumption
  • 700 nA typical with RTC
• Hardware AES Crypto accelerators
• True Random Number Generator
• High performance ADC and analog peripherals for sensor nodes
• IEEE 802.15.4-2003/2006/2011 compliant
• 769-935 MHz band support
• I/O and Package
  • 16/28 programmable I/O pins
  • 5 x 5 mm 32-pin QFN
  • 7 x 7 mm 48-pin QFN available (ATSAMR30G18A)
• Operating Voltage
  • 1.8V – 3.6V
• Temperature Range
  • -40°C to 85°C Industrial