The ATM2 Series

The ATM2 Series is a family of extreme low-power Bluetooth® 5 system-on-a-chip (SoC) solutions.

the atm2 series

ATM2

The ATM2 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 ATM2 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.

The ATM2 series is available as a 40-pin QFN package (ATM2201/ATM2202), 64-pin DR-QFN package (ATM2221), 56-pin QFN(ATM2231), or 37-pin WLCSP.

The ATM2 series is available as a 40-pin QFN package (ATM2201/ATM2202), 64-pin DR-QFN package (ATM2221), 56-pin QFN(ATM2231), or 37-pin WLCSP. All package options support the same core set of features with the number of available I/O based on the package type

An integrated Sensor Hub is a configurable hardware element that can read data from external sensors and write to memory while all other power domains remain powered down. The Sensor Hub can also trigger a full CPU wakeup if the sensor value falls outside pre-set thresholds.

An independent RF Wakeup Receiver is a separate RF receiver that scans for an incoming paging or wakeup signal while the rest of the SoC remains in a very low power state. The wakeup signal can be from a Bluetooth device, mobile phone, or a dedicated transmitter over a wide range of RF frequencies.

The ATM2 supports a wide range of peripherals through its I/O interface including UART, I2C, SPI, and Quad SPI for external flash. Also included is hardware for a Pulse Density Modulated (PDM) digital microphone, Pulse Width Modulation (PWM) outputs, Quadrature decoder (QDEC) for sensor inputs, Keyboard Scan Matrix Controller (KSM), Analog Comparator, and Application ADC. Flexible pin muxing routes peripherals to the I/O pins based on the application and product requirements.

Atmosic logo

the atm2 series

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

Security

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

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

Healthcare

  • Asset Trackers
  • Wayfinding
  • Wearables

Home

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

Personal

  • Gaming
  • Wearables

Auto

  • Key fobs
  • Accessories

ATM2 Series Feature Comparison

Device Part Number Energy Harvesting Product Line Size (mm) Package Pin Count Delivery
ATM2201 ATM2201SR No Wireless MCU 5.0 x 5.0 QFN 40-Pin Small 7” Reel (1000 pcs)
ATM2202 ATM2202SR No Wireless MCU 5.0 x 5.0 QFN 40-Pin Small 7” Reel (1000 pcs)
ATM2221 ATM2221SR No Wireless MCU 6.0 x 6.0 DR-QFN 64-Pin Small 7” Reel
ATM2231 ATM2231TR No Wireless MCU 7.0 x 7.0 QFN 56-Pin Standard 13” Reel (2500 pcs)
ATM2251 ATM2251SR No Wireless MCU 2.1 x 2.2 WLCSP 37-Pin Small 7” Reel

* To add integrated Energy Harvesting features please see our ATM3 series

Product Briefs:

ATM22x1 Product BriefMarch 21, 2022
ATM2202 Product BriefMarch 21, 2022

Design Guides:

ATM2 Series Kits

Device Kit Part Number Energy Harvesting Type Description
ATM2202 ATMEVK-M2202 No Development Kit Evaluation and development kit for ATM2202
ATM2221 ATMEVK-M2221 No Development Kit Evaluation and development kit for ATM2221
ATM2251 ATMEVK-M2251 No Development Kit Evaluation and development kit for ATM2251
All ATMFDL-Mx2xx No Production Board Production Firmware Download Board
All ATMIAB No Accessory I/O Adapter Board (Accessory)

Ready to find out more? Get started today!

Contact Us