ATM3 Series

The ATM3 Series is a family of extreme low-power Bluetooth® 5 system-on-a-chip (SoC) solutions.  This Bluetooth Low Energy SoC integrates a Bluetooth 5 radio with an ARM® Cortex® M0 processor and state-of-the-art power management to enable maximum lifetime in battery-operated devices.

The extremely low power ATM3 series SoC is designed with an extensive set of peripherals and flexible I/O to support a wide variety of applications across the consumer, commercial, and industrial Internet of Things (IoT) markets.

Bluetooth LE

  • Bluetooth Low-Energy 5.0 compliant
  • 2 Mbps, 1 Mbps 500 kbps, and 125 kbps PHY rates

CPU and Memory

  • 16 MHz ARM® Cortex® M0 CPU
  • 256 KB ROM, 128 KB RAM, 4K OTP, 1 MB NVM (optional)
  • Retention RAM configuration: 16 KB to 128KB in 16 KB step sizes
  • 16 MHz / Optional 32.768 kHz Crystal Oscillator


  • AES-128 Hardware Accelerator
  • True random number generator (TRNG)

Energy Harvesting

  • On-chip RF Energy Harvesting
  • Supports photovoltaic, thermal, motion and other energy harvesting technologies
  • External Harvesting/Storage Interface

RF and Power Management

  • Fully integrated RF front-end
  • Sensor Hub
  • RF Wakeup Receiver
  • 1.1 V to 3.3 V battery input voltage with integrated Power Management Unit (PMU)
  • SoC typical power consumption with 3 V battery including PMU
    • Active Rx @ -95 dBm: 1 mA
    • Active Tx @ 0 dBm: 2.5 mA
    • Retention @ 32 KB RAM: 2 µA
    • Hibernate: 0.7 µA

Industrial, Enterprise, and Smart Cities

  • Beacons
  • Asset Trackers
  • Remote Sensors
  • Environmental Monitors


  • Asset Trackers
  • Wayfinding
  • Wearables


  • Home Automation
  • Remote Control
  • Human Interface Devices (HID)


  • Gaming
  • Wearables


  • Key fobs
  • Accessories
  • If integrated Energy Harvesting features are not required, please see our ATM2 series

ATM3 Series Feature Comparison

Product Briefs:



Atmosic Energy Harvesting Advantage White Paper

ATM3 Series Kits

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