Microchip Technology

ATSAMD21J18A-MU  

Microcontrollers

The ATSAMD21J18A-MU is a low-power microcontroller unit (MCU) from Microchip Technology. It is part of the SAM D21 family of ARM Cortex-M0+ based MCUs. The ATSAMD21J18A-MU is a high-performance, low-power device that is ideal for a wide range of applications.

Description:

The ATSAMD21J18A-MU features a 32-bit ARM Cortex-M0+ CPU with a maximum CPU frequency of 48 MHz. It includes 256 kB of flash memory, 32 kB of SRAM, and a range of peripherals including USB, SERCOM (Serial Communication Interface), and ADC (Analog-to-Digital Converter). The device is available in a 64-pin QFN (Quad Flat No-leads) package.

Features:

• 32-bit ARM Cortex-M0+ CPU with a maximum CPU frequency of 48 MHz
• 256 kB of flash memory
• 32 kB of SRAM
• USB interface with High-Speed, Full-Speed, and Low-Speed operation
• SERCOM (Serial Communication Interface) with support for SPI, USART, and I2C
• 12-channel ADC with up to 16-bit resolution
• 12-channel DAC (Digital-to-Analog Converter)
• Low-power modes to conserve energy in battery-powered applications
• Core-coupled memory (CCM) for high-performance data handling
• Event system for low-power, high-performance inter-peripheral communication
• Security features including secure boot, AES-128 encryption, and unique chip identifier

Applications:

The ATSAMD21J18A-MU is suitable for a wide range of applications that require low power consumption and high performance. Some potential applications include:

• Battery-powered devices such as fitness trackers, smart watches, and portable medical devices
• Industrial control and automation systems
• Home automation and IoT devices
• Portable electronic devices such as MP3 players and e-readers
• Automotive applications such as infotainment systems and body control modules
• Wireless communication devices such as Zigbee and Bluetooth Low Energy (BLE) devices

Overall, the ATSAMD21J18A-MU is a versatile and powerful MCU that offers a range of features and capabilities for a wide range of applications. Its low-power modes and high-performance peripherals make it an ideal choice for battery-powered devices and other applications where power consumption is a critical factor.

ATSAMD21J18A-MU Documents

Download datasheets and manufacturer documentation for ATSAMD21J18A-MU

Errata :

SAM D21 Family Errata, Clarification      

PCN Assembly/Origin :

Assembly Site 15/Jun/2023      

Datasheets :

SAM D21/DA1 Family Datasheet      

PCN Packaging :

Transfer to Microchip/Label/Pkg 5/Sep/2016       MBB/Label Chgs 16/Nov/2018      

Design Resources :

ATSAMD21J18 Development Tool Selector      

PCN Design/Specification :

SAM D21/DA1 10/Sep/2021       SAM D21/DA1 05/Apr/2021      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH