Bringing Atmel AVR Ease-of-Use to ARM Cortex M0+ Based Microcontrollers - Atmel SAM D20


The Atmel® | SMART SAM D family, based on the ARM® Cortex®- M0+ core, builds on decades of innovation and experience in embedded Flash microcontroller (MCU) technology. It sets a new benchmark for flexibility and ease-of-use. It also combines the performance and energy-efficiency of the ARM Cortex-M0+ core with an optimized architecture and peripheral set. This general-purpose MCU family is ideal for many low-power, cost-sensitive industrial, automotive, and consumer applications. With 4-pin and code-compatible product series in the SAM D Family, Atmel offers a complete product offering, bringing Atmel AVR® architecture ease-of-use to 32-bit microcontrollers.


Key Features

High Performance

High Performance

  • 48MHz operation
  • 2.14 CoreMark/MHz
  • DMA
  • Single-cycle I/O access, supporting a pin toggling frequency up to 24 MHz
  • Event system
Rich Peripheral Set

Rich Peripheral Set

  • Up to six serial communication modules (SERCOM) configurable as UART/USART, SPI or I2C
  • Up to eight 16-bit Timer/Counters
  • Up to three high-end 16-bit Timer/Counters for control applications
  • Peripheral touch controller (PTC) that supports up to 256 channels and supports buttons, sliders, wheels, and proximity sensing
  • Real Time Clock (RTC) and calendar with leap-year correction
  • 12-bit 350ksps ADC and 10-bit DAC
  • Full Speed USB Device from internal RC oscillator
  • Full Speed USB embedded host
  • 2-channel Inter IC Sound Bus (I2S)

SAM D20 SERCOM Introduction

Low Power

Low Power

  • <70µA/MHz
  • <3.5µA RAM retention and RTC
  • Options of internal and external oscillators and on-the-fly clock switching
  • Sleepwalking clock switching
Free software tools from Atmel
Free software tools from Atmel,

including Atmel Studio and Atmel Software Framework (ASF).

SAM D20 ASF Introduction

Building on the Broadest MCU Portfolio

Building on the Market’s Broadest MCU Portfolio

What do coffee makers, smartphones, automotive navigation systems, metering equipment, medical devices and portable multimedia players have in common? These are just a few of the many types of products powered by Atmel MCUs. With more than two decades of industry leadership and innovation, Atmel ranks as one of the world’s largest suppliers of MCUs. These comprise the broadest portfolio of low-end, mid-range and high-end solutions based on two of the world’s most popular 8- and 32-bit MCU architectures—Atmel AVR and ARM.