The ATM3 Series

The ATM3 Series is a family of extreme low-power Bluetooth® 5 system-on-a-chip (SoC) solutions.

the atm3 series

ATM3

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.

The ATM3 has an enhanced Power Management Unit that supports energy harvesting devices, multiple energy storage options and intelligent power distribution

The on-chip RF Energy Harvester has a dedicated antenna port and a separate input for energy from photovoltaic, mechanical, and thermal harvesting devices is also provided. Storage of harvested energy is facilitated through a separate port for connection of capacitive storage or a rechargeable battery.

With its ability to harvest energy from multiple sources and manage energy storage, the ATM3 is a flexible SoC solution for a wide range of consumer, commercial, and industrial products.

The ATM3 series is available in as a 40 pin QFN package (ATM3201/3202), 64 pin DR-QFN package (ATM3221), or 56-pin QFN(ATM3231). 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 ATM3 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.

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the atm3 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)

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

Healthcare

  • Asset Trackers
  • Wayfinding
  • Wearables

Home

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

Personal

  • Gaming
  • Wearables

Auto

  • Key fobs
  • Accessories

ATM3 Series Feature Comparison

Device Part Number Energy Harvesting Product Line Size (mm) Package Pin Count Delivery
ATM3201 ATM3201SR Yes Wireless MCU 5x5 QFN 40-Pin Small 7” Reel (1000 pcs)
ATM3202 ATM3202SR Yes Wireless MCU 5x5 QFN 40-Pin Small 7” Reel
ATM3221 ATM3221SR Yes Wireless MCU 6x6 DR-QFN 64-Pin Small 7” Reel
ATM3231 ATM3231TR Yes Wireless MCU 7x7 QFN 56-Pin Standard 13” Reel (2500 pcs)

If integrated Energy Harvesting features are not required, please see our ATM2 series

ATM3 Series Kits

Device Kit Part Number Energy Harvesting Type Description
ATM3202 ATMEVK-M3202 Yes Development Kit Evaluation and development kit for ATM3202
ATM3221 ATMEVK-M3221 Yes Development Kit Evaluation and development kit for ATM3221
ATM3202 ATMBCN-3202-SS Yes Reference Design Photovoltaic Beacon (AMT3202 Based)
All ATMRFS-M22xx Yes Accessory 900MHz RF Source for RF Energy Harvesting
All ATMFDL-Mx2xx No Production Board Production Firmware Download Board
All ATMIAB No Accessory I/O Adapter Board (Accessory)

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