Meet Your Unique Design Requirements with the Atmel SAM3 Family

The Atmel® SAM3 family of ARM® Cortex™-M3 Flash-based microcontrollers (MCU) is expanding with 40 new devices in the mix that provide more memory options and more connectivity. With this high-performance, highly integrated and power-efficient portfolio, you’ll find just the right devices to meet your unique design requirements.

More Features

Get a broader scale of memory densities, greater cost-efficiency and more connectivity. You’ll have:

  • A full range of Flash memory options from 16KB up to 1MB
  • New peripheral sets for advanced connectivity, including Ethernet, dual CAN and high-speed USB MiniHost and device with on-chip physical layer (PHY)
  • And features including dual-bank Flash and dual-bank SRAM, as well as on-the-fly external memory scrambling

More Possibilities

With more memory densities in the portfolio, you’ll be able to meet the needs of your most cost-sensitive applications, as well as those requiring more memory for code and data storage or multi-tasking operations. Advanced connectivity capabilities are ideal for data concentrators, gateways and programmable logic controllers. You'll also experience safe in-system firmware upgrades and enhanced protection of external memories.

Look to the expanded SAM3 portfolio for devices with the right features and functions for designs in industrial automation, smart grids, medical equipment, building and home control, test and measurement systems, and computer and consumer peripherals. What’s more, SAM3 products provide an easy migration path from Atmel ARM7TDMI® SAM7S devices to Atmel ARM Cortex-M devices.

More Empowerment

The SAM3 portfolio natively supports the Atmel QTouch® Library, so you can add buttons, sliders and wheels functionality to your products. The device family also supports the Atmel 802.15.4-based wireless solution.

To accelerate your design process, you’ll have access to a full set of tools, from evaluation kits to debuggers and comprehensive software packages, including the Atmel Studio 6 integrated development environment (IDE). With the free Atmel Studio 6, which supports Cortex-M and Atmel AVR® MCU design, you’ll have access to nearly 1,000 example projects that will eliminate the need to write up to 50% of the low-level source code for your projects.

Enhancements to the SAM3 Family

New devices include:

  • SAM3N00 and SAM3N0 with 16KB and 32KB of Flash memory
  • SAM3S8 and SAM3SD8 with 512KB of Flash memory and dual-bank Flash option
  • SAM3X featuring Ethernet, dual CAN interface and HS USB MiniHost and device with on-chip PHY. Memory options are 256KB and 512KB dual-bank Flash with up to 100KB of dual-bank SRAM.
  • SAM3A featuring dual CAN interface and HS USB MiniHost and device with on-chip PHY. Memory options are 256KB and 512KB dual-bank with up to 100KB of dual-bank SRAM.
  • SAM3U1 with 64KB of Flash memory and HS USB with on-chip PHY

Are you ready to do more with your Cortex-M3 based designs? Expand your design possibilities with Atmel’s broadened SAM3 family.

Atmel Cortex-M Device Overview

Series Max. Freq. Memory Connectivity Analog Pin Count Package Eval Kit
Flash (KB) SRAM (KB) Ext. Bus Interface USB with on-chip PHY EMAC Dual CAN ADC DAC
SAM3X 84MHz 256 – 512* 68 - 100 Yes HS Host and Dev Yes Yes 12-bit 16-ch 12-bit 2-ch 100, 144 QFP, BGA SAM3X-EK
SAM3A 84MHz 256 – 512* 68 - 100 - HS Host and Dev - Yes 12-bit 16-ch 12-bit 2-ch 100, 144 QFP, BGA SAM3X-EK
SAM3U 96MHz 64 – 256* 20 - 50 Yes HS Dev - - 8-ch 12-bit - 100, 144 QFP, BGA SAM3U-EK
SAM3S 64MHz 120MHz 32 – 512* 1024 16 – 64 128 Yes FS Dev - - 12-bit 16-ch 12-bit 2-ch 48, 64, 100 QFP, QFN, BGA SAM3S-EK2
SAM3N 48MHz 16 - 512 4 - 24 - - - - 10-bit 16-ch 10-bit 1-ch 48, 64, 100 QFP, QFN, BGA SAM3N-EK

* Dual-bank Flash

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SAM3U Cortex-M3 Based MCU Introduction

SAM3U Peripherals and Power Management Overview


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