S31HFSTWE-U3000-3
Overview
The S31HFSTWE-U3000-3 is an industrial-grade 128GB microSDXC memory card from Delkin Devices Utility series. Built with Multi-Level Cell (MLC) flash technology, it is designed to operate reliably in extreme environments ranging from -40C to 85C. This card supports both standard SD and SPI interfaces, making it suitable for a wide range of embedded host controllers.
Why Choose This Part
This card features sophisticated wear leveling and bad block management to extend the lifespan of the MLC flash. It offers high-capacity 128GB storage with the reliability of an industrial temperature rating and a controlled BOM for long-term project stability. The dual-interface support allows for easy integration into legacy SPI-based microcontrollers or high-speed SDIO-based processors.
Applications
Key Specifications
Getting Started
To integrate this card, ensure your host controller supports the SDXC standard and can handle the 128GB capacity via the SDIO or SPI interface. For SPI mode, use standard libraries such as FatFs with a 3.3V logic level, ensuring the power supply can handle peak currents up to 400 mA during write operations.



