ATSAMD21J18A-MU
- Mfr.Part #
- ATSAMD21J18A-MU
- Manufacturer
- Microchip Technology
- Package / Case
- 64-VFQFN Exposed Pad
- Datasheet
- Download
- Description
- IC MCU 32BIT 256KB FLASH 64QFN
- Stock
- 4,204
- In Stock :
- 4,204
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- Manufacturer :
- Microchip Technology
- Product Category :
- Microcontrollers
- Package Type :
- QFN
- REACH SVHC :
- No SVHC
- Program Memory Size :
- 256KB 256K x 8
- Number of Timers/Counters :
- 8
- Operating Temperature :
- -40°C~85°C TA
- Mount :
- Surface Mount
- Product Type :
- ARM Microcontrollers - MCU
- Data Converter :
- A/D 20x12b; D/A 1x10b
- Surface Mount :
- yes
- Instruction Set Architecture :
- ARM
- uPs/uCs/Peripheral ICs Type :
- MICROCONTROLLER, RISC
- Program Memory Type :
- Flash
- Qualification :
- AEC-Q100
- Height :
- 1mm
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Memory Size :
- 256KB
- RoHS Status :
- ROHS3 Compliant
- Data Converters :
- A/D 20x12b, D/A 1x10b
- Supply Voltage-Max (Vsup) :
- 3.63V
- Bit Size :
- 32
- Base Product Number :
- ATSAMD21
- Temperature Grade :
- Industrial
- MSL :
- MSL 3 - 168 hours
- Number of I/Os :
- 52 I/O
- CPU Family :
- CORTEX-M0
- Maximum Operating Temperature :
- +85 °C
- Number of I2C Channels :
- 6
- Number of I/O :
- 52
- Product :
- MCU
- Pin Count :
- 64
- Number of UART Channels :
- 6
- Peripherals :
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- RAM Size :
- 32K x 8
- Operating Supply Voltage :
- 3.3V
- Number of Pins :
- 64
- DAC Channels :
- yes
- Interface :
- I2C, I2S, LIN, SPI, UART, USART, USB
- ROM Programmability :
- Flash
- Terminal Form :
- NO LEAD
- Contact Plating :
- Tin
- Published :
- 2015
- Package :
- Tray
- Frequency :
- 48MHz
- Supply Current-Max :
- 7 mA
- Watchdog Timer :
- yes
- Power Supplies :
- 3.3 V
- Terminal Position :
- QUAD
- Core Processor :
- ARM® Cortex®-M0+
- Product Status :
- Active
- Terminal Pitch :
- 0.5mm
- Reach Compliance Code :
- Compliant
- Voltage - Supply (Vcc/Vdd) :
- 1.62V~3.6V
- Product Category :
- ARM Microcontrollers - MCU
- ROM (words) :
- 262144
- Supplier Device Package :
- 64-QFN (9x9)
- Qualification Status :
- Not Qualified
- Core Architecture :
- ARM
- Interface Type :
- I2C, I2S, LIN, SPI, USART
- Data Bus Width :
- 32b
- EEPROM Size :
- --
- Core Size :
- 32-Bit
- Minimum Operating Temperature :
- -40 °C
- Number of I/O Lines :
- 52
- Dimensions :
- 9 x 9 x 1mm
- Number of Terminals :
- 64
- Manufacturer :
- Microchip
- Supply Voltage :
- 3.3V
- Mounting Type :
- Surface Mount
- Seated Height-Max :
- 1 mm
- Interfaces :
- I2C/I2S/SPI/UART/USA
- Number of SPI Channels :
- 6
- DMA Channels :
- yes
- Packaging :
- Tray
- Number of ADC Channels :
- 20 Channel
- Speed :
- 48MHz
- PWM Channels :
- yes
- Has ADC :
- yes
- Oscillator Type :
- Internal
- Typical Operating Supply Voltage :
- 3.6 (Maximum) V
- Length :
- 9mm
- Connectivity :
- I2C, LINbus, SPI, UART/USART, USB
- Lead Free :
- Lead Free
- Number of Terminations :
- 64
- Width :
- 9mm
- Mounting Style :
- SMD/SMT
- Family Name :
- ATSAMD
- Base Part Number :
- ATSAMD21J18
- RAM (bytes) :
- 32768
- JESD-30 Code :
- S-XQCC-N64
- Package Shape :
- Square
- Package / Case :
- 64-VFQFN Exposed Pad
- Series :
- SAM D21J
- RoHS :
- Details
- Factory Lead Time :
- 4 Weeks
- Height Seated (Max) :
- 1mm
- Device Core :
- ARM Cortex M0+
- Brand :
- Microchip Technology / Atmel
- Pbfree Code :
- yes
- Datasheets
- ATSAMD21J18A-MU
ATSAMD21J18A-MU Documents

Microcontrollers Microchip Technology ATSAMD21J18A-MU Overview
The Microcontrollers Microchip Technology ATSAMD21J18A-MU is a powerful and versatile microcontroller unit (MCU) designed for advanced applications that require low power consumption and high performance in a compact package. This MCU is built around a 32-bit ARM Cortex-M0+ processor and comes equipped with 256KB of flash memory, providing ample space for application code and data storage. The integration of a 64-QFN package ensures a minimal footprint on the PCB, making it ideal for space-constrained applications while offering robust performance.
ATSAMD21J18A-MU Features
This microcontroller offers a wide range of features that enhance its usability and functionality in various applications. Key features include:
- 32-bit ARM Cortex-M0+ processor, providing efficient processing capabilities.
- 256KB of flash memory and 32KB of SRAM.
- Up to 48 MHz operating frequency for fast processing and responsiveness.
- Multiple power-saving modes to enhance battery life in portable devices.
- Extensive peripheral set including I2C, SPI, UART, and more for versatile connectivity options.
- Supports capacitive touch sensing, making it suitable for interactive applications.
- USB device and host functionality for easy data transfer and connectivity with other devices.
ATSAMD21J18A-MU Applications
- Smart Wearables: Utilized in smart watches and fitness trackers due to its low power consumption and compact size.
- Internet of Things (IoT) Devices: Serves as the core processing unit in home automation systems, security cameras, and other smart home devices, leveraging its connectivity features and efficient power management.
- Medical Devices: Applied in portable medical monitoring devices such as blood glucose monitors and heart rate sensors, benefiting from its precision and reliability.
- Industrial Control Systems: Used in automated control systems in factories due to its robust handling of multiple input/output operations and environmental resilience.
- Consumer Electronics: Forms the backbone of user interfaces in appliances like smart thermostats and remote controls, thanks to its touch sensing capabilities.
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