ATSAMD51J18A-AUT-EFP

Overview

The ATSAMD51J18A-AUT-EFP is a 32-bit ARM Cortex-M4F microcontroller from the SAM D51 series. It features 256 KB of Flash memory and 128 KB of SRAM, operating at a maximum clock frequency of 120 MHz. The device supports a supply voltage range of 1.71 V to 3.63 V and includes 51 I/O pins. It integrates 24-channel 12-bit ADCs and 2-channel 12-bit DACs. Connectivity options include USB, SPI, I2C, USART, LINbus, IrDA, MMC/SD, QSPI, and EBI/EMI interfaces. It operates within a temperature range of -40°C to +85°C in a 64-TQFP package.

Feature Summary

• Integrated floating-point unit (FPU) for efficient mathematical processing
• Supports high-speed serial communication via USB, SPI, and QSPI interfaces
• Includes multiple peripheral controllers such as DMA, I2S, and PWM
• Features internal oscillator with flexible clock management

Applications

• Industrial control systems requiring robust connectivity
• Medical devices needing precise analog signal acquisition
• Consumer electronics utilizing USB communication
• Automotive infotainment and instrumentation modules

Procurement Notes

Verify the specific suffix AUT-EFP to confirm the tape-and-reel packaging and extended temperature rating. Ensure compatibility with existing PCB footprints for the 64-TQFP package. Check for any recent Product Change Notifications (PCNs) regarding labeling or material composition updates from Microchip Technology before finalizing procurement orders.

Selection Notes

Select this component when a balance of processing power and analog capabilities is required. The inclusion of an FPU makes it suitable for complex algorithms compared to standard Cortex-M4 cores. Consider the extensive peripheral set for direct interface with sensors and displays without additional bridge chips. Verify that the 120 MHz speed meets real-time processing requirements for the target application.

Part Context

This part belongs to the SAM D51 family, designed for cost-sensitive applications requiring high performance. It shares architectural similarities with the ATSAME51 and ATSAMD53 series but offers specific memory and peripheral configurations tailored for general-purpose embedded control. The family emphasizes low power consumption while maintaining high throughput for data-intensive tasks.

Replacement Considerations

ATSAMD51J18A-AU-EFP: Same core specifications but differs in packaging format (Tray vs. Tape & Reel). ATSAMD51J18A-MU: Different package type (QFN-64) with similar electrical characteristics. ATSAME51J18A-AU: Pin-compatible alternative with enhanced security features and slightly different peripheral availability.