# ATM33

#### The ATM3330e/ATM3330 are part of a family of extreme low-power Bluetooth® 5.3 system-on-chip (SoC) solutions.

This Bluetooth Low Energy SoC integrates a Bluetooth 5.3 compliant radio with ARM® Cortex® M33F application processor, 128 KB Random Access Memory (RAM), 64 KB Read-Only Memory (ROM), 512 KB nonvolatile memory (NVM), with ARM® TrustZone® enabled security features, and state-of-the-art power management to enable maximum lifetime in battery-operated devices.

## The extremely low power ATM3330e/ATM3330 SoC

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is designed to extend battery life for the Internet-of-Things (IoT) markets.

Support for low duty cycle operation allows systems to run for significantly longer periods without battery replacement. In addition, this series of SoCs from Atmosic supports operation from energy harvesting sources, including RF, photovoltaic, TEG (Thermoelectric generator), and motion. Innovative wake-up mechanisms are supported to provide options for further power consumption reduction.

### Bluetooth LE

- Bluetooth Low-Energy 5.3 compliant
- 2 Mbps, 1 Mbps 500 kbps, and 125 kbps PHY rates
- Supports Bluetooth Angle-of-Arrival (AoA) and Angle-of-Departure (AoD) direction finding

### CPU and Memory

- 64 MHz [ARM® Cortex® M33F](/content/technology-arm-m33/index.html) CPU with DSP
- 64 kB ROM, 128 kB RAM, 512 kB NVM
- Retention RAM configuration: 16 kB to 128kB in 16 kB step sizes
- 16 MHz / Optional 32.768 kHz Crystal Oscillator
- [Sensor Hub](/content/technology-sensorhub/index.html)

### Energy Harvesting (ATM33e devices only)

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

### Security

- ARM® TrustZone®, HW Root of Trust, Secure Boot, Secure Execution & Debug
- AES-128/256, SHA-2/HMAC 256 Encryption/Cryptographic Hardware Accelerators
- True random number generator (TRNG)

### Industrial and Enterprise

- Industrial IoT Sensors
- Remote Monitors

### Healthcare

- Health Monitors
- Sports and Fitness

### Home

- Advanced Home Automation
- Advanced Remote Control
- Human Interface Devices (HID)
- Entertainment

### Personal

- Gaming
- Wearables

## ATM33 Series Feature Comparison

| Series | Part Number | Energy Harvesting | Ext. Storage | WuRx | Size (mm) | Package | Pin Count | Delivery |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| ATM33 | ATM3325-5DCAQK-SR | No | No | No | 5x5 | QFN | 40-Pin | Small 7" Reel, 1K devices/reel |
| ATM33 | ATM3325-5LCAQK-SR | No | Yes | No | 5x5 | QFN | 40-Pin | Small 7" Reel, 1K devices/reel |
| ATM33 | ATM3330-5DCAQN-TR | No | No | Yes | 7x7 | QFN | 56-Pin | Standard 13" Reel, 2.5K devices/reel |
| ATM33 | ATM3325-5DCACM-SR | No | No | No | 2.61x2.43x0.38 | WLCSP | 49-pin | Small 7" Reel, 2K devices/reel |
| ATM33e | ATM3330E-5DCAQN-TR | Yes | No | Yes | 7x7 | QFN | 56-Pin | Standard 13" Reel, 2.5K devices/reel |

*** Note: Extended Storage refers to integrated non-volatile data storage capabilities in addition to the base NVM storage.

## Product Briefs:

[ATM33/e Series Product Brief](/content/download/2211/?tmstv=1781334791/index.html) - August 28, 2023

## Datasheets:

[ATM33e Series Datasheet](/content/download/4310/?tmstv=1781334791/index.html) - February 13, 2026

[ATM33 Series Datasheet](/content/download/4305/?tmstv=1781334791/index.html) - February 13, 2026

## Design Guides:

[Guidelines and Checklist for Board Designs with ATM33/e or ATM34/e Bluetooth SoC](/content/download/8501/?tmstv=1781334791/index.html) - May 6, 2026

[ATM33/e Series Hardware Design Guide](/content/download/4260/?tmstv=1781334791/index.html) - November 20, 2025

## White Papers

[Atmosic Energy Harvesting Advantage White Paper](/content/whitepaper-download/index.html)

## ATM33 Series Kits

| Device | Kit Part Number | Energy Harvesting | Type | Description |
| --- | --- | --- | --- | --- |
| All | [ATMRPB](/content/products_kit_atmrpb/index.html) | No | Accessories | Reference Design Programming Board |
| All | [ATMFDL-Mx2xx](/content/production-tools-atmfdl-mx2xx/index.html) | No | Production Board | Production Firmware Download Board |
| All | [ATMIOB](/content/products_kits_atmiob-mx2xx/index.html) | No | Accessory | Interface Board (Accessory) |
| ATM3325 | [ATMEVK-3325](/content/products_kit_atmevk-3325/index.html) | Yes | Development Kit | Evaluation and development kit for ATM3325 |
| ATM3325 | [ATMTAG-3325](/content/products_kit_atmtag33/index.html) | No | Reference Design | Tag Reference Design |
| ATM3325 | [ATMTAG-EXT-3325](/content/products_kit_atmtag33/index.html) | No | Reference Design | Tag Reference Design (with IoT Sensor Board Breakoff) |
| ATM3330 | [ATMEVK-3330](/content/products_kit_atmevk-3330/index.html) | No | Development Kit | Evaluation and development kit for ATM3330 |
| ATM3330e | [ATMEVK-3330e](/content/products_kit_atmevk-3330e/index.html) | Yes | Development Kit | Evaluation and development kit for ATM3330e |
| ATM3330e | [ATMKBD-33](/content/products_kit_atmkbd33/index.html) | Yes | Reference Design | PV Keyboard Reference Design |
| ATM3330e | [ATMRC-33](/content/products_kit_atmRC33/index.html) | Yes | Reference Design | PV Remote Control Reference Design |

# The ATM33 Series

The ATM3330e/ATM3330 are part of a family of extreme low-power Bluetooth® 5.3 system-on-chip (SoC) solutions.

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