ATSAMD51J19A-AFT

Overview

The ATSAMD51J19A-AFT is a 32-bit ARM Cortex-M4F microcontroller from the SAM D51 family, manufactured by Microchip Technology. It features a maximum clock frequency of 120 MHz and includes 512 kB of Flash program memory and 192 kB of SRAM data RAM. The device operates within a supply voltage range of 1.71 V to 3.6 V and supports an industrial temperature range of -40°C to +85°C. It is housed in a 64-TQFP package with 51 available I/O pins. Key peripherals include 24-channel 12-bit ADCs, 2-channel 12-bit DACs, and interfaces such as SPI, I2C, USART, LIN, and USB.

Feature Summary

• Integrates an ARM Cortex-M4F core with hardware floating-point unit for efficient signal processing.
• Supports automotive-grade reliability through AEC-Q100 qualification.
• Provides comprehensive connectivity via multiple serial communication interfaces including CAN, LIN, and USB.

Applications

• Industrial automation controllers
• Automotive body electronics
• Smart energy metering systems

Procurement Notes

Verify the suffix 'AFT' indicates tape-and-reel packaging when ordering. Confirm the specific temperature grade matches application requirements, as variants exist for extended ranges. Ensure compatibility with existing PCB footprints for the 64-TQFP package. Check for any recent Product Change Notifications regarding assembly sites or material composition updates.

Selection Notes

Select this model for designs requiring high-performance processing with integrated analog capabilities. Compare against ATSAMD51J19A-AU if tray packaging is preferred over tape-and-reel. Consider ATSAME51J19A if CAN bus support is strictly required without alternative multiplexing. Evaluate pin count requirements against smaller variants like ATSAMD51J18A if storage capacity can be reduced.

Part Context

This component belongs to the SAM D51 series of microcontrollers designed for applications demanding high performance and low power consumption. The series integrates advanced analog peripherals and robust connectivity options suitable for IoT and industrial environments. It shares architectural similarities with the SAM E51 series but differs in specific interface availability and certification levels.

Replacement Considerations

ATSAMD51J19A-AU serves as a direct functional substitute differing only in packaging format (Tray vs. Tape & Reel). ATSAMD51J19A-AUT-EFP offers identical electrical specifications in an alternate reel configuration. Cross-series migration to ATSAME51J19A requires verification of CAN interface dependencies.