About us

Flash Memory Controllers for Industrially Robust Storage Solutions

Safe | Reliable | Secure

Hyperstone, a fabless semiconductor and microprocessor design company, was founded in 1990 and is based in Konstanz, Germany. Hyperstone’s products include microcontrollers for Serial ATA (SATA) and Parallel ATA (PATA) Solid-State Disks (SSDs), Disk-on-Module (DoM), Disk-on-Board (DoB), embedded Flash solutions such as eMMC, and Flash cards such as CF, SD and MicroSD. USB controllers complete the portfolio. Flash controller firmware is supplied with the controllers and is customized for each Flash application.

Together with subsidiaries in Taiwan and the USA, and with other worldwide partners, Hyperstone serves a global customer base. The company’s research and development is based in Germany and Taiwan. Industry-leading partners provide world-class wafer-subcontracting, packaging and testing services. A pioneer in the Flash memory controller business, Hyperstone has a strong portfolio of patents including wear-leveling algorithms and microprocessor design.

Why Choose Us?

With a focus on reliability, we produce customizable turnkey solutions that are designed for industrial applications, and we offer superior levels of technical support from our engineers. Supporting not only modern but legacy interfaces, our controllers boast outstanding power-fail robustness and error correction.

Our Mission ...

To design, develop and deliver high-quality, innovative semiconductor solutions. We strive to enable our customers to produce world-class products for industrial, embedded, automotive and global communications storage applications.

What We Do ...

We design and develop highly reliable, robust controllers for industrial Flash storage solutions. We focus on sub-markets and applications that have significant expertise barriers to entry and address the growing demand for powerful error correction, refresh algorithms, superior wear leveling, and extensive read and program disturb management.

Invest in Hyperstone

Hyperstone GmbH is part of the CML Microsystems Plc group of companies that design and market semiconductors for global communication and storage markets. CML Microsystems Plc is listed on the Main Market of the London Stock Exchange (LON: CML).

Group companies include:

For detailed stock information, please visit the CML Investor Center

Invest in Hyperstone

Register with us to gain exclusive access to more product documents!

If you sign an NDA with us, we can give you access to exclusive documents and firmware downloads. Send us an email after you register and we will start the process. 



Konstanz, Germany


+49 7531 9803 0



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