ATSAME54P19A-AFT

Overview

The ATSAME54P19A-AFT is a 32-bit microcontroller from the Microchip SAM E54 family, built on the ARM Cortex-M4F core with an integrated FPU. It operates at a maximum frequency of 120 MHz and features 512 kB of Flash memory and 192 kB of SRAM. The device provides 99 general-purpose I/Os and supports a supply voltage range of 1.71 V to 3.6 V. It includes 32-channel 12-bit ADCs and two 12-bit DACs. Connectivity options encompass Ethernet, USB, CAN, SPI, I2C, UART, and QSPI. The component is rated for industrial temperatures from -40°C to +85°C and is housed in a 128-TQFP package.

Feature Summary

• Integrated floating-point unit (FPU) within the ARM Cortex-M4F core for efficient mathematical processing.
• Comprehensive peripheral set including Ethernet MAC, USB OTG, and multiple high-speed serial interfaces.
• High-resolution analog conversion capabilities with 32-channel 12-bit ADCs and dual 12-bit DACs.
• Automotive-grade reliability certification ensuring operation in demanding environmental conditions.

Applications

• Industrial automation controllers requiring robust connectivity and real-time processing.
• Smart building management systems utilizing Ethernet and sensor integration.
• Medical devices needing precise analog signal acquisition and reliable data handling.
• Automotive infotainment and instrument clusters certified for extended temperature ranges.

Procurement Notes

Verify the complete part number against official Microchip documentation to ensure correct suffix alignment. Confirm that the AFT suffix corresponds to the specified TQFP-128 packaging and tape-and-reel delivery format. Cross-reference the manufacturing date code and lot traceability requirements with your specific quality standards before finalizing procurement orders.

Selection Notes

Select this component when a balance of high-performance computing and extensive analog peripherals is required. The 512 kB Flash capacity suits complex firmware applications without excessive cost. Ensure the design accommodates the 128-pin TQFP footprint and thermal dissipation needs. Verify that the 1.71 V to 3.6 V operating range aligns with the system power architecture.

Part Context

This MCU belongs to the SAM E54 series, designed for IoT and industrial applications. It shares architectural similarities with the SAM D5x/E5x families but offers enhanced security and connectivity features. The device integrates hardware security modules and cryptographic accelerators to protect sensitive data during transmission and storage.

Replacement Considerations

Consult Microchip's official cross-reference tools for verified substitutes. Consider the ATSAME54P20A-AUT-EFP for higher memory configurations or the ATSAME54P19A-AU for tray-packaged variants. Ensure any replacement maintains compatibility with the existing PCB layout and software drivers.