ATSAMD21G17L-MU

Overview

The ATSAMD21G17L-MU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D21G Functional Safety (FuSa) series. It features 128KB of flash memory and 16KB of RAM, operating at a maximum frequency of 48MHz. The device supports a supply voltage range of 1.62V to 3.63V and includes an internal oscillator. Connectivity options include I2C, LINbus, SPI, and UART/USART interfaces. Peripheral functions encompass DMA, I2S, PWM, WDT, and power-on reset. The component is housed in a 48-QFN package with dimensions of 7x7mm.

Feature Summary

• Integrated functional safety capabilities within the SAM D21G series architecture
• Supports multiple communication protocols including I2C, SPI, and UART
• Includes advanced analog peripherals such as ADC and DAC converters
• Features direct memory access for efficient data transfer management

Applications

• Industrial control systems requiring functional safety compliance
• Smart metering applications with low-power requirements
• Consumer electronics utilizing wireless connectivity modules
• Medical devices needing reliable embedded processing

Procurement Notes

Verify the specific suffix 'MU' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing design constraints regarding the 48-QFN footprint. Cross-reference the part number with the latest SAM D21 family datasheet to confirm current production status and any potential obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when functional safety standards are required alongside standard Cortex-M0+ performance. Compare pin counts and peripheral availability against other SAM D21 variants to ensure sufficient I/O resources. Consider the operating temperature range and supply voltage requirements relative to the target application environment. Evaluate the trade-off between flash capacity and package size for optimal board space utilization.

Part Context

This microcontroller is part of the broader SAM D21 family designed for cost-sensitive and power-efficient applications. It shares architectural similarities with other SAM D21 models but offers specific memory configurations and safety features. The device integrates with Microchip's development ecosystem, supporting various programming and debugging tools for streamlined product development cycles.

Replacement Considerations

Consult the official SAM D21 family cross-reference guide for verified substitutes. Check for equivalent parts with matching pinouts and electrical specifications. Verify that any replacement maintains the required functional safety certifications if applicable.