リョーサン List of Products and Services

The "automotive DRAM (DDR3/DDR3L)" we offer supports a maximum data transfer rate of 1600 megabits per second per pin while maintaining an operating voltage of 1.5V. It enables double the data transfer compared to DDR2 and allows for simultaneous access to 8 banks, achieving higher speeds. Additionally, it features one of DDR3's power-saving functions, the partial array self-refresh. 【Product Lineup (Partial)】 ■DDR3/3L 25nm ・1Gb: W631GxxNB ・2Gb: W632GxxNB ■DDR3/3L 20nm (in development) ・1Gb: W631GxxRB ・2Gb: W632GxxRB *For more details, please download the PDF or feel free to contact us.

The "Octal NAND Flash" that we handle is a product that achieves high durability and high reliability necessary for automotive and industrial equipment applications. It offers 10 years of data retention and 100,000 program/erase cycles. The continuous read throughput is up to 240 MB/s, making it three times faster than existing QSPI NAND flash memory products. 【Product Features】 ■ Interface: Octal SPI ■ Bus Width: x1/x8 ■ Read Speed: Up to 240 MB/s ■ Write Speed: Up to 9 MB/s ■ Endurance: 100,000 cycles ■ Data Retention: 10 years ■ ECC: Equipped with ECC that has a correction capability of 1 bit per sector within the memory chip *For more details, please download the PDF or feel free to contact us.

The "W77Q Series" is a secure flash memory that can add security features to existing models without security functions by replacing the standard flash memory currently in use. It enables application features such as secure boot, secure OTA, and secure storage. The tamper detection feature of SPI communication improves signal quality and contributes to functional safety. Additionally, since security features can be added without changing the PCB, it helps reduce development costs and makes use of existing assets. 【Features】 ■ 100% inherits the pin configuration and instruction set of conventional SPI flash memory ■ Operates like standard memory when security features are turned off ■ Detects and protects against unauthorized access through SPI command authentication ■ Hides addresses and data flowing on the SPI bus during read/write operations using stream encryption ■ Offers products ranging from 16Mb to 128Mb with a Vcc voltage of 1.8V *For more details, please download the PDF or feel free to contact us.

The "LPDDR4 for Automotive Customers" that we handle is a product compliant with AEC Q-100. Due to its low capacity, it can be packaged in a small form factor, reducing the footprint. Additionally, it can be supplied for a long term, contributing to the reduction of replacement labor and costs. Please feel free to contact us when you need assistance. 【Product Features】 ■ Offers an 8Gb lineup that is not widely available from other companies ■ Provides cost benefits to customers who are forced to use more capacity than necessary ■ Long-term supply is possible *For more details, please download the PDF or feel free to contact us.