microSD & SD Card

microSD & SD Cards

Smallest, universal and most commonly used removable memory cards

This is the most widely used removable card form factor and interface. The form factor was introduced in the late 1990s as an alternative to the MultiMediaCard. Today the most popular form factors are microSD and the (full-size) SD card. On top of the different form factors, there are by now many different generations of SD specification and speed- or capacity-related grades. SD and microSD cards are extensively used in mobile devices, consumer electronics and digital still cameras, but also in automotive, navigation systems and industrial or IoT equipment. The SD interface specification has evolved over time, in order to address different requirements for better performance, features and capacity. Some more recent designs add a security chip or SmartIC within the microSD package in order to provide a smart microSD with added security, authentication and encryption features.

microSD & SD controller

S8 Flash Memory Controller

The Hyperstone S8 family of Flash Memory Controllers together with provided application and Flash specific firmware offers an easy-to-use turnkey platform for industrial high endurance robust Flash Memory Cards or modules compatible to host systems with (e)SD or (e)MMC interfaces.

  • Designed to satisfy industrial requirements
  • hyReliability™ Flash Management including superior wear leveling, read disturb management, and power fail management ensuring highest reliability and endurance
  • Continuously updated Flash Memory chip support and long term availability
  • Flexible ECC engine supporting all Flash Memory handling
  • High performance on-the-fly AES encryption engine 
  • Custom features can be implemented with simple firmware upgrades
  • 16 GPIO for customer specific applications supporting SDIO 3.0, SPI, I2C, and ISO7816
  • ASSP with minimal external active components
  • Turnkey solution including firmware, manufacturing kit, test and development hardware, as well as reference schematics
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Konstanz, Germany


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