ATSAMD51G19A-MF

Overview

The ATSAMD51G19A-MF is an ARM microcontroller from the Microchip SAM D51 series, featuring an ARM Cortex-M4F core with a maximum clock frequency of 120 MHz. It integrates 512 kB of Flash program memory and 192 kB of SRAM data RAM on a 32-bit data bus. The device provides 51 general-purpose I/Os and includes a 12-bit ADC with 24 channels and a 12-bit DAC. Operating voltage ranges from 1.71 V to 3.6 V, with an industrial temperature range of -40°C to +85°C. It is housed in a QFN-64 package.

Feature Summary

• Integrated ARM Cortex-M4F processor core with hardware floating-point unit for efficient digital signal processing.
• Comprehensive peripheral set including multiple communication interfaces such as SPI, USART, I2C, and USB.
• High-resolution analog conversion capabilities with 24-channel 12-bit ADC and 12-bit DAC support.
• Automotive qualification compliant with AEC-Q100 standards for reliability in demanding environments.

Applications

• Industrial automation controllers requiring robust real-time processing.
• Medical devices utilizing high-precision analog signal acquisition.
• Consumer electronics incorporating touch screen interfaces and audio output.
• Smart home appliances with wireless connectivity modules.

Procurement Notes

Verify the specific suffix 'MF' against official Microchip documentation to confirm the exact package type and temperature grade. Ensure compatibility with design-in requirements regarding moisture sensitivity levels and reflow soldering profiles. Cross-reference the datasheet revision history for any silicon errata or recommended operating conditions that may impact system integration.

Selection Notes

Select this component when a balance of processing power and analog performance is required within a compact footprint. The 512 kB Flash and 192 kB RAM accommodate complex firmware and data buffering needs. Consider the QFN-64 package for surface-mount assembly constraints. Validate that the 120 MHz speed meets timing requirements without excessive power consumption compared to lower-frequency alternatives.

Part Context

This part belongs to the SAM D51 family, designed for applications needing high performance and low power. It shares architectural similarities with other SAM D5x variants but offers specific memory and pin configurations. The family supports various development tools and software libraries, facilitating rapid prototyping and deployment across diverse embedded systems.

Replacement Considerations

Consult Microchip's official cross-reference guides for verified substitutes. Potential alternatives within the same family include ATSAMD51J19A or ATSAMD51N19A, depending on package and pin count requirements. Ensure functional equivalence in memory size, peripheral availability, and electrical specifications before substitution.

FAQ

Is the ATSAMD51G19A-MF qualified for automotive applications?

Yes, the SAM D51 family is AEC-Q100 qualified, making it suitable for automotive-grade applications.

What is the maximum operating frequency of the core?

The ARM Cortex-M4F core operates at a maximum frequency of 120 MHz.

How many analog input channels are available?

The device features a 12-bit ADC with 24 available input channels.