ATSAME51J20A-AFT

Overview

The ATSAME51J20A-AFT is an ARM microcontroller from the ATSAME51 series, manufactured by Microchip Technology. It features an ARM Cortex-M4F core operating at a maximum clock frequency of 120 MHz. The device includes 1 MB of Flash program memory and 256 kB of SRAM data RAM. It provides 51 I/O lines and supports a supply voltage range of 1.71 V to 3.6 V. Key peripherals include a 12-bit ADC with 24 channels and a 12-bit DAC. The component is housed in a TQFP-64 package and is qualified under AEC-Q100 standards for automotive applications.

Feature Summary

• Integrated ARM Cortex-M4F processor with floating-point unit capabilities
• High-density non-volatile memory configuration with 1 MB Flash and 256 kB SRAM
• Automotive-grade qualification ensuring reliability in demanding environments
• Comprehensive analog interface suite including multi-channel ADC and DAC

Applications

• Automotive infotainment systems requiring robust MCU performance
• Industrial control units utilizing CAN and serial communication interfaces
• Smart sensor nodes with high-resolution analog signal processing needs
• Medical devices adhering to strict automotive-grade reliability standards

Procurement Notes

Verify the specific suffix 'AFT' corresponds to the TQFP-64 surface-mount package and tape-and-reel shipping format. Confirm that the extended temperature rating aligns with your system's operational requirements. Ensure compatibility with existing PCB footprints designed for the TQFP-64 form factor. Cross-reference the AEC-Q100 qualification status if automotive compliance is mandatory for the final assembly.

Selection Notes

Select this model when a balance of high-performance computing and extensive memory is required within a compact 64-pin footprint. It is suitable for designs needing multiple analog inputs and digital communication protocols without external multiplexers. Consider this part for applications where automotive-grade durability is necessary but higher pin counts are not feasible.

Part Context

This component belongs to the ATSAME51 family, which targets high-performance embedded applications. It shares architectural similarities with other members like the ATSAME51J19A but offers increased memory capacity. The family is designed to support complex user interfaces and advanced connectivity options in space-constrained modules.

Replacement Considerations

ATSAMD51J20A-AFT: Similar memory and core architecture but lacks the specific ATSAME51 peripheral set such as CAN.

FAQ

Does the ATSAME51J20A-AFT support CAN communication?

Yes, the datasheet specifications list CAN as one of the supported interface types alongside SPI, USART, and I2C.

What is the maximum operating temperature for this component?

The component is rated for an extended temperature range, with a maximum operating temperature of +125°C.