ATSAMD51P19A-AFT

Overview

The ATSAMD51P19A-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 provides 99 general-purpose I/O pins and operates within a supply voltage range of 1.71 V to 3.6 V. It supports an extended industrial temperature range from -40°C to +125°C and holds AEC-Q100 qualification. The component is housed in a TQFP-128 surface-mount package.

Feature Summary

• Integrated floating-point unit (FPU) for efficient mathematical processing
• Supports advanced analog peripherals including high-resolution ADCs and DACs
• Includes comprehensive connectivity interfaces such as USB, SPI, I2C, and USART
• Features hardware security mechanisms and cryptographic accelerators

Applications

• Industrial automation controllers requiring robust performance
• Automotive infotainment and instrument cluster systems
• Smart home devices with wireless connectivity requirements
• Medical equipment utilizing precise analog signal acquisition

Procurement Notes

Verify the specific suffix 'AFT' against the official Microchip datasheet to confirm the TQFP-128 package and extended temperature rating. Ensure compatibility with your PCB footprint design. Check for recent Product Change Notifications regarding packaging or assembly site changes. Confirm RoHS compliance status for your region's regulatory requirements before finalizing procurement.

Selection Notes

Select this model when a balance of high processing speed and extensive I/O count is required in a compact form factor. The 120 MHz Cortex-M4F core suits applications needing real-time control capabilities. Consider the 512 kB Flash size for complex firmware implementations. Verify that the 192 kB RAM meets your application's stack and heap requirements. Compare against lower-pin-count variants if fewer connections are sufficient.

Part Context

This component belongs to the SAM D51 series, designed for high-performance embedded applications. It shares architectural similarities with the ATSAME5x family but focuses on cost-effective solutions without Ethernet MACs. The SAM D51 series is widely used in consumer electronics and IoT devices due to its low power consumption and rich peripheral set. It serves as a successor to earlier SAM3/SAM4 families with enhanced DSP capabilities.

FAQ

Does the ATSAMD51P19A-AFT include a Floating Point Unit?

Yes, it integrates an ARM Cortex-M4F core which includes a single-precision Floating Point Unit for accelerated math operations.

What is the maximum operating temperature for this part?

The device is qualified for an extended industrial temperature range, with a maximum operating temperature of +125°C.