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ATSAMD21J16B-MF
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Product Detailed Parameters
- Description：IC MCU 32BIT 64KB FLASH 64QFN
- Series：SAM D21J, Functional Safety (FuSa)
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：ARM® Cortex®-M0+
- Core Size：32-Bit Single-Core
- Speed：48MHz
- Connectivity：I2C, LINbus, SPI, UART/USART, USB
- Peripherals：Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O：52
- Program Memory Size：64KB (64K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：8K x 8
- Voltage - Supply (Vcc/Vdd)：1.62V ~ 3.6V
- Data Converters：A/D 20x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：64-QFN (9x9)
- Package / Case：64-VFQFN Exposed Pad
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The ATSAMD21J16B-MF is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48MHz. It features 64KB of Flash program memory and 8KB of SRAM. The device supports a supply voltage range of 1.62V to 3.6V and includes integrated peripherals such as USB, I2C, SPI, UART/USART, LINbus, I2S, DMA, PWM, and watchdog timers. It offers 52 general-purpose I/O pins and is housed in a 64-QFN (9x9) package with exposed pad.
Feature Summary
- Integrated Functional Safety (FuSa) capabilities within the SAM D21J series
- Supports multiple communication interfaces including USB, I2C, SPI, and USART
- Includes analog peripherals with 20-channel 12-bit ADC and 1-channel 10-bit DAC
Applications
- Industrial control systems requiring functional safety compliance
- Consumer electronics utilizing USB connectivity
- Sensor interface modules using I2C or SPI buses
- General-purpose embedded applications with moderate I/O requirements
Procurement Notes
Verify the specific suffix 'MF' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 64-QFN form factor. Check for any recent Product Change Notifications regarding manufacturing sites or packaging materials. Confirm that the Functional Safety qualification meets the specific integrity level required for the target application.
Selection Notes
Select this component when a balance of processing power, peripheral richness, and functional safety certification is needed. The Cortex-M0+ architecture provides efficient code execution for low-power applications. Consider the 64-QFN package constraints for thermal management and board space. Compare against other SAM D21 variants if different memory sizes or pin counts are required.
Part Context
This part belongs to the SAM D21 family of 32-bit microcontrollers from Microchip Technology. The 'J' designation typically indicates a specific pin count and peripheral set within the family. The 'B' suffix often denotes an updated version or revision compared to earlier 'A' variants, which may include errata fixes or enhanced features. This series is designed for cost-sensitive, high-volume applications.
Replacement Considerations
ATSAMD21J16B-MUT is a direct alternative with identical electrical specifications but differs in the package type (QFN vs. QFP). Verify mechanical fit and soldering process compatibility before substitution. Other SAM D21J variants may offer different memory sizes or I/O counts.
