ATSAMD51P19A-AF

Overview

The ATSAMD51P19A-AF is an ARM Cortex-M4F microcontroller from the SAM D51 family, operating at a maximum clock frequency of 120 MHz. It features 512 kB of Flash memory and 192 kB of SRAM within a TQFP-128 package. The device supports a supply voltage range of 1.71 V to 3.63 V and includes 99 I/O pins. Key peripherals include a 12-bit ADC with 24 channels, two 12-bit DACs, USB, QSPI, SPI, USART, I2C, I2S, and LIN interfaces.

Feature Summary

• Integrated floating-point unit (FPU) for efficient mathematical processing
• Supports machine learning acceleration via dedicated hardware blocks
• Includes multiple high-speed communication interfaces including USB and Ethernet
• Features advanced analog capabilities with high-resolution data converters

Applications

• Industrial control systems requiring robust connectivity
• Smart home devices utilizing wireless communication protocols
• Medical equipment demanding precise analog signal acquisition
• Automotive infotainment and instrumentation clusters

Procurement Notes

Verify the specific suffix 'AF' against the official Microchip datasheet to confirm the extended temperature range (-40°C to +125°C) and tray packaging configuration. Ensure compatibility with your system's voltage levels and interface requirements before procurement. Cross-reference the latest silicon errata for any known operational limitations or workarounds relevant to this specific revision.

Selection Notes

Select this component when a balance of high performance and extensive peripheral integration is required. The 120 MHz Cortex-M4F core provides sufficient processing power for complex algorithms. Consider the 128-pin package size relative to your PCB layout constraints. Evaluate the power consumption characteristics against battery life requirements if applicable in portable designs.

Part Context

This part belongs to the SAM D51 series, designed for applications needing high performance with low power consumption. It shares architectural similarities with other SAM D5x devices but offers specific memory and pin configurations. The series is widely used in IoT and industrial applications due to its comprehensive peripheral set and ecosystem support.

Replacement Considerations

Consult the Microchip SAM D51 family cross-reference guide for compatible alternatives. Verify that substitute parts maintain identical pinouts and peripheral functionality to ensure seamless integration without hardware redesign.

FAQ

Does the ATSAMD51P19A-AF include an Ethernet controller?

Yes, the SAM D51 family, including the P19 variant, integrates an Ethernet MAC peripheral suitable for networked applications.

What is the maximum operating temperature for the AF suffix?

The AF suffix indicates an extended temperature range, supporting operation up to +125°C as per the official specifications.