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ATSAMD21J18A-AU

Name: ATSAMD21J18A-AU
Rating: 4.7 (12 reviews)

IC MCU 32BIT 256KB FLASH 64TQFP

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包 TQFP-64
資料表 ATSAMD21J18A-AU DataSheet
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規格

Package	Tray
Series	SAM D21J, Functional Safety (FuSa)
ProductStatus	Active
CoreProcessor	ARM® Cortex®-M0+
CoreSize	32-Bit Single-Core
Speed	48MHz
Connectivity	I²C, LINbus, SPI, UART/USART, USB
Peripherals	Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
NumberofI/O	52
ProgramMemorySize	256KB (256K x 8)
ProgramMemoryType	FLASH
RAMSize	32K x 8
Voltage-Supply(Vcc/Vdd)	1.62V ~ 3.6V
DataConverters	A/D 20x12b; D/A 1x10b
OscillatorType	Internal
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	64-TQFP

概述

Description

The ATSAMD21J18A-AU is a microcontroller from Microchip's SAM D21 series, based on the ARM Cortex-M0+ architecture. It operates at a maximum clock speed of 48 MHz and features 256 KB of Flash memory and 32 KB of SRAM. This versatile microcontroller includes a range of peripherals, such as I²C, SPI, UART, and ADC, making it suitable for various applications like embedded systems, IoT devices, and sensor interfaces.
Key features include a 10-bit ADC, multiple PWM channels, and a rich set of GPIO pins, allowing for flexible interfacing with external components. The ATSAMD21J18A-AU supports low-power operation modes, making it ideal for battery-powered applications. It also incorporates a built-in USB interface for easy connectivity.
In terms of development, it is compatible with numerous development environments and platforms, including Arduino, which facilitates rapid prototyping. Overall, the ATSAMD21J18A-AU offers a powerful, efficient, and flexible solution for modern embedded applications.

Features

The ATSAMD21J18A-AU is a microcontroller from Microchip's SAM D21 series, based on a 32-bit ARM Cortex-M0+ core. It features:
- Clock Speed: Up to 48 MHz.
- Flash Memory: 256 KB.
- SRAM: 32 KB.
- I/O Pins: 38 programmable I/O pins.
- ADC: 12-bit Analog-to-Digital Converter with up to 16 channels.
- DAC: 12-bit Digital-to-Analog Converter.
- Timers: Multiple 16-bit timers and a Real-Time Counter (RTC).
- Communication Interfaces:
- USART, I2C, SPI, and SDIO for flexible connectivity.
- USB: Full-speed USB controller.
- Low Power Modes: Designed for energy-efficient applications.
- Package: Available in a 48-pin LQFP package.
The ATSAMD21J18A-AU is ideal for embedded systems requiring compact size, low power consumption, and versatile connectivity.

Package

The ATSAMD21J18A-AU is packaged in a 48-pin QFN (Quad Flat No-lead) form factor. This compact surface-mount package measures 7 mm x 7 mm, suitable for space-constrained applications while providing good thermal performance and electrical characteristics.

Pinout

The ATSAMD21J18A-AU is a microcontroller from Microchip's SAM D21 series, featuring a total of 48 pins. It has a compact QFN or TQFP package, making it suitable for various embedded applications.
Key functions include:
- Digital I/O: Up to 38 GPIO pins that can be configured for various digital input/output operations.
- ADC: 12-bit Analog-to-Digital Converter with up to 14 channels.
- Communication Interfaces: Multiple interfaces including USART, SPI, I2C, and a USB interface.
- Timers: Several Timer/Counter and PWM functionalities for precise timing control.
- Power Management: Low-power modes for energy-efficient operation.
- Debugging: Support for JTAG and SWD for programming and debugging.
This microcontroller is widely used in applications such as IoT devices, sensor hubs, and consumer electronics due to its versatility and low power consumption.

Manufacturer

The ATSAMD21J18A-AU is manufactured by Microchip Technology Inc., a leading semiconductor company. Microchip specializes in microcontroller and analog semiconductor products. Established in 1989, the company is known for its innovative solutions in embedded control, offering a wide range of products including microcontrollers, digital signal controllers, and memory devices. Microchip serves various industries such as automotive, industrial, communications, consumer electronics, and more, providing customers with comprehensive design support and development tools. The ATSAMD21J18A-AU is part of the SAM D21 family of ARM Cortex-M0+ based microcontrollers, designed for low-power applications and embedded systems.

Application

The ATSAMD21J18A-AU microcontroller is commonly used in embedded systems for IoT applications, wearables, smart home devices, automotive electronics, and industrial automation. Its features, such as low power consumption, integrated peripherals (like ADCs and UARTs), and support for various communication protocols (I2C, SPI, USB), make it suitable for sensor monitoring, data logging, and real-time control tasks.

Equivalent

The ATSAMD21J18A-AU can be closely matched with the following equivalents:
1. ATSAMD21G18A-AU - Similar but with less flash memory.
2. ATSAMD21E18A-AU - Features a smaller package and different pin configuration.
3. ATSAMD21J15A-AU - Offers reduced memory and I/O options.
Always verify specific requirements, such as memory size and peripheral features, to ensure compatibility for your application.