ATSAML21J18A-MUT
- Mfr.Part #
- ATSAML21J18A-MUT
- Manufacturer
- Microchip Technology
- Package / Case
- 64-VFQFN Exposed Pad
- Datasheet
- Download
- Description
- IC MCU 32BIT 256KB FLASH 64QFN
- Stock
- 26,165
- In Stock :
- 26,165
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Core Processor :
- ARM® Cortex®-M0+
- ROM (words) :
- 65536
- REACH SVHC :
- No SVHC
- Terminal Pitch :
- 0.5mm
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- RAM Size :
- 32K x 8
- Terminal Form :
- NO LEAD
- Number of DMA Channels :
- 16
- Temperature Grade :
- Industrial
- Surface Mount :
- yes
- RAM (bytes) :
- 32768
- Number of I/O Lines :
- 51
- Package / Case :
- 64-VFQFN Exposed Pad
- Data Bus Width :
- 32b
- Series :
- SAM L21J
- Speed :
- 48MHz
- DAC Channels :
- yes
- Published :
- 2000
- Number of External Interrupts :
- 16
- Density :
- 2 Mb
- Number of Terminations :
- 64
- Bit Size :
- 32
- Package Shape :
- Square
- JESD-30 Code :
- S-XQCC-N64
- Peripherals :
- DMA, POR, PWM, WDT
- Manufacturer :
- Microchip Technology Inc
- Core Architecture :
- ARM
- Interfaces :
- I2C/SPI/UART/USART
- DMA Channels :
- yes
- Supply Voltage :
- 3.3V
- Number of I/O :
- 51
- Low Power Mode :
- yes
- Data Converters :
- A/D 20x12b, D/A 2x12b
- Seated Height-Max :
- 1 mm
- Watchdog Timer :
- yes
- Operating Supply Voltage :
- 3.63V
- Program Memory Type :
- Flash
- Oscillator Type :
- Internal
- PWM Channels :
- No
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- RoHS Status :
- ROHS3 Compliant
- Interface :
- I2C, LIN, SCI, SPI, UART, USART, USB
- Program Memory Size :
- 256KB 256K x 8
- Has ADC :
- yes
- CPU Family :
- CORTEX-M0
- Data Converter :
- A/D 20x12b; D/A 2x12b
- Frequency :
- 48MHz
- Number of Timers/Counters :
- 8
- Mounting Type :
- Surface Mount
- EEPROM Size :
- --
- Format :
- FIXED-POINT
- Core Size :
- 32-Bit
- Contact Plating :
- Tin
- Base Part Number :
- ATSAML21J18
- Base Product Number :
- ATSAML21
- Time-Min :
- SECONDS
- Terminal Position :
- QUAD
- Operating Temperature :
- -40°C~85°C TA
- Number of Programmable I/O :
- 51
- Number of Pins :
- 64
- RAM (words) :
- 8192
- HTS Code :
- 8542.31.00.01
- ECCN Code :
- 5A992.C
- Product Status :
- Discontinued at Digi-Key
- Voltage - Supply (Vcc/Vdd) :
- 1.62V~3.63V
- ROM Programmability :
- Flash
- Supplier Device Package :
- 64-QFN (9x9)
- Width :
- 9 mm
- Packaging :
- Tape and Reel (TR)
- Device Core :
- ARM Cortex M0+
- Package :
- Tape and Reel (TR);Cut Tape (CT);Digi-Reel®;
- On Chip Program ROM Width :
- 32
- Length :
- 9mm
- Reach Compliance Code :
- Compliant
- Boundary Scan :
- yes
- Integrated Cache :
- yes
- On Chip Data RAM Width :
- 32
- Connectivity :
- I2C, LINbus, SCI, SPI, UART/USART, USB
- Number of Terminals :
- 64
- Number of Timers :
- 5
- Height Seated (Max) :
- 1mm
- Memory Size :
- 256KB
- Datasheets
- ATSAML21J18A-MUT
ATSAML21J18A-MUT Documents

Microcontrollers Microchip Technology ATSAML21J18A-MUT Overview
The Microcontrollers Microchip Technology ATSAML21J18A-MUT is a high-performance, low-power microcontroller unit (MCU) designed to meet the demanding requirements of modern embedded systems. Engineered by Microchip Technology, this MCU is based on a 32-bit ARM Cortex-M0+ processor and comes with 256KB of flash memory, packaged in a compact 64QFN format. Its balance of efficiency and power makes it an ideal choice for developers looking to optimize their systems for energy consumption without sacrificing performance. The ATSAML21J18A-MUT excels in applications where space and power are at a premium, offering a robust set of features to support a variety of complex digital functionalities.
ATSAML21J18A-MUT Features
This microcontroller is equipped with numerous features that enhance its utility in sophisticated electronic products. Notably, it includes power-saving modes that significantly reduce energy consumption during idle periods. The MCU also supports a wide range of communication protocols, including SPI, I2C, and UART, making it highly versatile in multi-component systems. Additionally, its high-speed ADCs facilitate rapid data acquisition, critical for real-time processing applications.
ATSAML21J18A-MUT Applications
- Smart Home Devices: Utilized in the automation of home systems, the ATSAML21J18A-MUT's low power consumption and robust processing capabilities make it suitable for smart thermostats, lighting controllers, and security systems, where efficiency and reliability are crucial.
- Wearable Technology: Its compact size and efficiency are perfect for wearable devices such as fitness trackers and smartwatches, enabling long battery life and continuous sensor monitoring.
- Industrial Automation: This MCU can control industrial machinery requiring precise motor control and real-time data processing, optimizing operations and enhancing system reliability.
- Medical Equipment: In medical devices like portable monitors and diagnostic equipment, the ATSAML21J18A-MUT ensures dependable operation with its high data integrity and secure communication features.
- Energy Management: Ideal for systems that monitor and control energy usage, such as smart meters and solar power controllers, leveraging its ability to process data efficiently and operate in diverse environmental conditions.
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