From Swissbit, S-450/S-450u SD and Micro SD Memory Cards

Swissbit AG has introduced its S-450 and S-450u Series SD and Micro SD memory cards which deliver performance for demanding applications while maintaining reliability and robustness.

By combining SLC flash components with a powerful system architecture and intelligent firmware with a feature set, the company has been able to produce high performance, high reliability industrial SD memory card solutions.

Taking the next step up in performance, the S-450/S-450u cards comply with UHS-I bus mode, speed class 10 and offer a sequential data rate up to 90MB/s for reads and 75MB/s for writes. In order to offer a maintenance free product with lowest TCO for high end applications, no compromise has been made on robustness, data retention or reliability. The use of company’s intelligent algorithms enable the memory cards to deliver up to one hundred times longer data retention than conventional SD memory cards.

The S-450 and S-450u series have been optimised for the challenging SD applications where a high-age of write operations occur and where data retention at maximum program-erase (PE) cycles are required. These cards are designed for boot code execution, data logging, and transaction packet storage.

S-450 (SD) and S-450u (Micro SD) memory cards are equipped with intelligent read disturb management (RDM) alongside an autonomous, performance-neutral background ‘auto refresh’ process. This data care management improves data reliability beyond the already high levels achieved by SLC. The combination of fast flash devices and controller allows these complex management tasks to be achieved efficiently. This keeps system utilisation under all conditions well below the specified limit, allowing a high sustained IOP rate and guaranteeing compatibility with a wide range of industrial and networking applications.

Diagnostic functions offering highly detailed status information plus standalone data maintenance guarantee data retention for many years, even in especially rough environmental conditions and extreme temperatures.

S-450 and S-450u memory cards prevent read disturb bit errors even in intensive read applications. Users benefit from short downtimes due to an extended operating life in the field and long data reliability.

Selected hardware, materials and production processes in automotive conditions ensure that the SD and Micro SD memory cards are of high quality. The high-performance controller offers excellent ECC. Power fail safety is achieved by transaction log based firmware and has been verified in the company’s product qualification process utilizing asynchronous power down cycles. Firmware upgrades can be performed both in the factory and in the field.

S-450 SD memory cards from 4GV to 32GB are available. The Micro SD form factor and low densities will follow in the coming months.

Depending on the project size, the company is also able to realise customer-specific modifications.