ATSAMD51P19A-AU-EFP

Overview

The ATSAMD51P19A-AU-EFP is a 32-bit ARM Cortex-M4F microcontroller from the Microchip 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 64-pin TQFP package. The device supports a supply voltage range of 1.71 V to 3.63 V and includes 51 general-purpose I/Os. Key peripherals include USB, SPI, I2C, USART, QSPI, I2S, and LIN interfaces. It integrates 24-channel 12-bit ADCs and two 12-bit DACs, designed for extended flash performance applications.

Feature Summary

• Integrated ARM Cortex-M4F core with hardware floating-point unit for efficient digital signal processing
• Extended Flash Performance architecture providing high-speed code execution capabilities
• Comprehensive connectivity suite including USB Full-Speed interface and multiple communication protocols
• High-resolution analog conversion subsystem with multiple channels for sensor interfacing

Applications

• Industrial control systems requiring robust peripheral integration
• Consumer electronics utilizing USB connectivity and display interfaces
• Wearable devices benefiting from low-power operation modes
• Smart home automation controllers with extensive I/O requirements

Procurement Notes

Verify the specific suffix 'EFP' against official Microchip documentation to confirm packaging and temperature grade specifications. Ensure compatibility with existing PCB footprints for the 64-TQFP package. Cross-reference the part number with current datasheets to validate any recent design changes or errata updates before finalizing procurement orders.

Selection Notes

Select this component when a balance of processing power and peripheral density is required in a compact form factor. The 120 MHz Cortex-M4F core suits applications needing real-time response without excessive power consumption. Consider the 512 kB Flash capacity for complex firmware implementations and the availability of multiple communication interfaces for system integration flexibility.

Part Context

This microcontroller belongs to the SAM D51 series, which targets cost-sensitive applications requiring ARM Cortex-M4 performance. It shares architectural similarities with other members like the ATSAMD51J19A but differs in pin count and I/O availability. The series emphasizes energy efficiency and integrated connectivity for IoT and embedded control markets.

Replacement Considerations

Direct substitutes within the same package and pinout include ATSAMD51J19A variants. For different pin counts, consider ATSAMD51N19A (100-pin) or ATSAMD51G19A (48-pin). Verify software compatibility and peripheral mapping differences when migrating between these related part numbers.