ATSAMD51J18A-MF

Overview

The ATSAMD51J18A-MF is a 32-bit microcontroller based on the ARM Cortex-M4F core, operating at a maximum frequency of 120MHz. It features 256KB of Flash program memory and 128KB of SRAM data memory. The device includes 24 channels of 12-bit ADC and 2 channels of 12-bit DAC. It supports multiple communication interfaces including USB, I2C, SPI, UART/USART, LINbus, and IrDA. The component operates within a voltage range of 1.71V to 3.63V and functions in temperatures from -40°C to +85°C. It is housed in a 64-pin VQFN package.

Feature Summary

• Integrated floating-point unit (FPU) for efficient mathematical processing
• Supports USB Full-Speed connectivity with dedicated peripheral controllers
• Includes multiple high-speed serial communication interfaces such as SPI and USART
• Features analog-to-digital conversion with up to 24 input channels

Applications

• USB-enabled embedded control systems
• Industrial automation controllers requiring LINbus support
• Sensor interface modules utilizing multi-channel ADC inputs
• Portable devices operating within extended temperature ranges

Procurement Notes

Verify the specific suffix 'MF' against official Microchip documentation to confirm the exact package type and tape/reel specifications. Ensure compatibility with design tools by checking the latest datasheet revision. Confirm RoHS compliance status through authorized distributors. Validate that the ordering part number matches the required pinout and thermal characteristics for your PCB layout.

Selection Notes

Select this component when an ARM Cortex-M4F core with integrated FPU is required for signal processing tasks. It is suitable for applications needing USB connectivity without external transceivers. Consider the 256KB Flash size for complex firmware requirements. Evaluate the 64-pin VQFN package constraints against available board space and thermal dissipation needs compared to TQFP alternatives.

Part Context

This part belongs to the SAM D51 family of microcontrollers designed for low-power, high-performance applications. The family emphasizes energy efficiency while maintaining processing capabilities through the Cortex-M4 architecture. It shares architectural similarities with other SAM D series devices but offers specific memory and peripheral configurations tailored for cost-sensitive yet feature-rich embedded solutions.

Replacement Considerations

ATSAMD51J18A-AU: Same core and memory, different TQFP-64 package. ATSAMD51J18A-MU: Same core and memory, different QFN-64 package. ATSAMD51J18A-MUT: Same core and memory, reel packaging variant.