ATSAMD21J18A-AF

Program Memory Type:	FLASH
Base Part Number:	ATSAMD21J18
Supplier Device Package:	64-TQFP (10x10)
Package / Case:	64-TQFP
Operating Temperature:	-40°C ~ 125°C (TA)
Oscillator Type:	Internal
Data Converters:	A/D 20x12b, D/A 1x10b
Voltage - Supply (Vcc/Vdd):	1.62 V ~ 3.6 V
RAM Size:	32K x 8
EEPROM Size:	--
Series:	SAM D21J
Program Memory Size:	256KB (256K x 8)
Number of I/O:	52
Peripherals:	Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Connectivity:	I²C, LINbus, SPI, UART/USART, USB
Speed:	48MHz
Core Size:	32-Bit
Core Processor:	ARM® Cortex®-M0+
Part Status:	Active
Packaging:	Tray

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<p>The ATSAMD21J18A-AF microcontroller is part of the Advanced Microcontroller Bus Architecture (AMBA) family of microcontrollers, developed by Atmel. It has a wide range of applications, from simple general purpose applications to high-performance microcontrollers. ATSAMD21J18A-AF is an ARM Cortex-M0 based low power, low cost 8/32-bit microcontroller, with 64/128K of Flash memory, up to 16K of EEPROM, up to 736 bytes of RAM, up to 64 UARTs, up to 8 I2C busses, 2 SPI buses, 2 USB interfaces, 2 12-bit ADC/DAC interfaces, 8 hardware timers, and up to 12 hardware interrupt sources. </p><p>The ATSAMD21J18A-AF is suitable for a number of different applications, including motor control, audio/video systems, security devices, home automation, digital signage, remote monitoring and control, automotives, industrial control and instrumentation. It is also suitable for use as an embedded processor in devices such as mobile phones, cyber security products and embedded systems. </p><p>The ATSAMD21J18A-AF features an ARM Cortex-M0 core, which is designed for low power applications. The core provides up to 12 different levels of instructions, including support for 16-bit instructions, 32-bit instructions for better performance, 8-bit instructions for resource-constrained systems, and DSP instructions for media-rich applications. It also features a vectored interrupt controller and two sleep states for power efficient operation.</p><p>The ATSAMD21J18A-AF also features a range of peripheral devices, such as serial communications interfaces, pulse width modulators, and timers, which can be used to control external devices, and to monitor system events. It has four USART, one USART with SPI capability and four UART modules, each capable of operating up to five different serial protocols. Two PWM and four timer outputs are available, suitable for lighting, motor control and power conversion applications. The device also offers four 10-bit and two 8-bit ADCs with up to 24 channels, enabling the captured analog signals to be read and processed by the microcontroller. There are also three 12-bit DACs, and two analog comparators to provide feedback control of analog signals. </p><p>The ATSAMD21J18A-AF supports a wide range of operating systems, including FreeRTOS, Apache Mynewt, and ARM mbed. It also supports a range of programming languages, such as C, C++, Java, Assembly, and JavaScript. The device features low power capabilities, allowing it to operate in low power mode when required. It also features a watchdog timer for system reset in case of a system crash, as well as a Brownout detector for detecting low voltage situations. </p><p>In conclusion, the ATSAMD21J18A-AF is a powerful and versatile 8/32-bit microcontroller, suitable for a wide range of embedded applications. It offers a core ARM Cortex-M0 processor, up to 64 UARTs, up to 8 I2C busses, two SPI buses, two USB interfaces, two 12-bit ADC/DAC interfaces, 8 hardware timers, and up to 12 hardware interrupt sources. It also supports a range of programming languages and operating systems, and has an array of peripheral devices to interface with external devices. The device is suitable for a number of different applications, and has low power capabilities for energy efficient operation.</p>

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