ATSAML21E17B-MNT Integrated Circuits (ICs)

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In this article, we will discuss the application field and working principle of the ATSAML21E17B-MNT. ATSAML21E17B-MNT is a single-chip microcontroller belonging to the Atmel SAM L21 family. It is built with an ARM Cortex-M0+ CPU core and integrates advanced peripherals, including Flash memory, SRAM, C3M3 Timers, AES Cryptography, True Random Number Generator, communication interface, and other periphery drivers.

Application Field

The application of ATSAML21E17B-MNT includes general embedded system designs, touch-sensing industrial control applications, networking applications, home automation system, low-power development, Bluetooth Low-Energy (BLE), and energy harvesting applications. It provides an economical and feature-rich power solution to accelerate customers’ designs and help them to complete their projects quickly and efficiently.

For instance, it can be used in touch-sensitive industrial control applications. The L21’s ultra-low power operation combined with the Atmel Ultra-Low Power Touch Solution helps design engineers to save time and cost by allowing customers to directly attach their sensor lines to the MCU. This saves on vital design time.

Elsewhere, ATSAML21E17B-MNT can also be used in low-power and energy harvesting applications, such as solar power designs. It offers industry-leading power consumption while providing robust I/O performance, which makes it an ideal solution for energy-harvesting designs.

Moreover, Bluetooth Low-Energy (BLE) technology is gaining widespread popularity for both wireless communication and power efficiency. The ARM Cortex-M0+ core on the ATSAML21E17B-MNT provides a fast, reliable connection for all Bluetooth-enabled applications.

Working Principle

The ATSAML21E17B-MNT employs a 32-bit ARM Cortex-M0+ core with a maximum frequency of 48MHz. It has a small 20k Flash memory, 6k SRAM, and 2k EEPROM memory. The Atmel cortex-M0+ CPU core helps reduce the overall power consumption. The ATSAML21E17B-MNT also integrates an accurate oscillator, a 4-to-20mA current loop and an external crystal or ceramic resonator. Moreover, it also has interfaces such as UART and SPI as well as GPIOs.

The Cortex-M0+ CPU core, together with the peripherals, allow the ATSAML21E17B-MNT to perform functions such as process control, interfacing, data acquisition and powering of connected components. The ARM Cortex-M0+ core can perform various arithmetic and logic operations. Moreover, it can execute instructions from external memory and communicate with other peripherals or components. The ATSAML21E17B-MNT also has an Advanced Encryption Standard (AES) crypto engine that can perform high-level encryption operations. Additionally, an Embedded Trace Macrocell (ETM) is included, which supports Instruction Trace and Data Trace.

The Atmel ATSAML21E17B-MNT also offers a wide range of communication options such as SPI, I2C, UART, Internal Modules, and USB. Onboard peripherals, such as data converters, filters, timers, and comparators assist with signal conditioning and analog measurements. An integrated 10bit SARADC with up to sixteen channels is also featured. A capacitive sensing and low-power touch controller interface is also included, which supports true wake-up from standby.

Atmel’s ATSAML21E17B-MNT is a powerful and cost-effective single-chip solution for embedded projects. With its ARM Cortex-M0+ core and a wide range of peripherals and interfaces, it is one of the best choices for small and medium embedded applications. Its low power consumption and large memory capacity make it a good option for energy-harvesting projects. All in all, The ATSAML21E17B-MNT offers a great combination of features and performance, offering a powerful and affordable solution for embedded designs.

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