ATSAML21G18B-ANT

Program Memory Size:	256KB (256K x 8)
Supplier Device Package:	48-TQFP (7x7)
Package / Case:	48-TQFP
Operating Temperature:	-40°C ~ 105°C (TA)
Oscillator Type:	Internal
Data Converters:	A/D 14x12b, D/A 2x12b
Voltage - Supply (Vcc/Vdd):	1.62 V ~ 3.63 V
RAM Size:	32K x 8
EEPROM Size:	--
Program Memory Type:	FLASH
Series:	SAM L21G
Number of I/O:	37
Peripherals:	DMA, POR, PWM, WDT
Connectivity:	I²C, LINbus, SCI, SPI, UART/USART, USB
Speed:	48MHz
Core Size:	32-Bit
Core Processor:	ARM® Cortex®-M0+
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ATSAML21G18B-ANT Application Field and Working Principle
Embedded devices are currently being used in almost every application field. Among them, microcontrollers have become an essential component due to their versatility, availability, low cost and ability to be incorporated into small packages. In this article, we will focus on the ATSAML21G18B-ANT microcontroller and its applications and working principle.

Application Field of the ATSAML21G18B-ANT Microcontroller
The ATSAML21G18B-ANT microcontroller is a low-power microcontroller using the ARM Cortex-M0+ Processor core. It has 256KB of flash and 32KB of SRAM. This device has a wide range of applications in various fields, such as industrial automation, robotics, UAVs, smart grid, agricultural monitoring, and connected home appliances. It is also applicable for the development of radio frequency (RF) nodes for Wireless Sensor Networks (WSN). In addition, it offers integrated peripherals, making it suitable for security-related applications.

Working Principle of the ATSAML21G18B-ANT Microcontroller
The ATSAML21G18B-ANT microcontroller includes several unique features. It has an improved debouncing filter, which filters out input noise by eliminating unwanted bounces in signals. This helps the device react to real-time inputs more accurately. In addition, it has a sleep mode, which powers down the device when not in use. This reduces power consumption and enables the device to run on a battery for a longer time. It also has an integrated wake-up unit, which wakes up the device from its sleep mode by direct external inputs, such as press of a button or incoming message from other microcontrollers. Furthermore, the ATSAML21G18B-ANT supports various communication interfaces, such as serial peripherals, USB, and RF. These enable the microcontroller to communicate with other controllers or devices easily.

In summary, the ATSAML21G18B-ANT is an excellent choice for a wide range of embedded applications, such as industrial automation and robotics. It features an improved debouncing filter, sleep mode and a wake-up unit for improved energy efficiency, as well as various communication interfaces for communication with other devices.

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