Taichung, Taiwan - Winbond Electronics, the world's leading supplier of semiconductor memory solutions, will test Synopsys' DesignWare Synchronous Serial Interface (SSI) IP and Winbond's OctalNAND flash memory on July 21, 2021 declared successful. DesignWare SSI IP, which provides high-speed read from serial flash memory, is targeted at SoCs for automotive, mobile, and IoT devices. enable recruitment.
Achieves high-speed reading of up to 240 Mbytes/sec
Winbond OctalNAND is the world's first NAND flash with serial octal interface. We provide code storage for embedded devices with high capacity of 1 Gbit or more and excellent cost performance in the same form factor as serial NOR flash, and support product development for automotive, communication, and industrial system equipment manufacturers.
Winbond develops OctalNAND Flash as technology limitations of NOR Flash make it difficult to provide high-capacity non-volatile memory for embedded systems at a cost-effective price in an industry-standard package. Did. Applications such as Advanced Driver Assistance Systems (ADAS), clusters (dashboards) and factory automation, where NOR Flash has traditionally been used, are increasingly increasing in code size above 512 Mbits in recent years. NOR flash in this capacity range has lower cost performance than NAND flash of the same capacity.
"By supporting Winbond's controller for OctalNAND with silicon-proven DesignWare SSI IP, Synopsys provides fast memory access while simplifying the integration of OctalNAND into mobile, consumer, IoT and automotive SoCs. said John Koeter, Senior Vice President of Marketing and Strategy, IP Division, Synopsys. “Combining DesignWare SSI IP with OctalNAND enables SoC designers to accelerate time-to-market for SoCs that require cost-effective, high-speed, high-capacity code storage flash memory.”
"Winbond has worked with Synopsys to support OctalNAND with DesignWare SSI IP, making it easier for customers to take advantage of OctalNAND's advanced features," said Winbond's Flash Memory Business Unit Technical Director. said JW Park. “By using SoCs embedded with DesignWare SSI IP, customers can choose code storage options available on the market, including serial NOR flash, QspiNAND flash, and even OctalNAND flash, depending on their required specifications such as performance, capacity, and price.・You will be able to select the most suitable one from the flash.”
Advantages of OctalNAND
Many embedded systems that require large amounts of nonvolatile memory read bootcode from flash memory and then transfer it to DRAM for execution using code shadowing. OctalNAND Flash has a read throughput of up to 240 Mbytes/sec and the ability to read continuously from the first address to the last with a single read command. Bad blocks may exist or occur in NAND flash, but Winbond's OctalNAND has a lookup table function for bad block management, which can map and replace bad blocks with normal blocks. This allows us to maintain a contiguous address space and perform fast code shadowing without having to skip bad blocks.
If the OTA (Over-the-Air) update function becomes a standard feature in embedded systems, the capacity required for code storage will double. 1Gb and 2Gb are becoming more common for this application, and 4Gb is also being considered regularly. Flash memory erase and program performance is important for OTA. Compared to serial NOR flash, OctalNAND flash can erase up to 400x faster and program up to 50x faster. If a large portion of flash memory needs to be OTA updated, moving from NOR flash to NAND flash reduces erase/program time from approximately 10 minutes to less than 1 minute, greatly improving system availability and user experience. .
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