Macronix ‘read-while-write’ flash adopted by Renesas
Renesas has used the MX25LW5124G RWW flash and implemented a dedicated octa- peripheral interface on its MUC to support Macronix memory devices with serial multi I/O. The memory is suitable for over-the-air (OTA) update, which are becoming more prevalent within automotive cockpit solutions.
In most OTA applications a system would typically execute from one memory while updating a second. But this requires redundant memories and double bandwidth.
The MX25LW51245G RWW flash has a multiple bank architecture with simultaneous RWW capability that allows read access from one memory bank while writing to another memory bank. In addition the system can be set up to roll back to its orginal firmware in the event of an OTA failure or data corruption.
Macronix’s RWW flash memory solutions are manufactured with its own ultra-reliable, high quality 55nm floating-gate technology, which is part of the ten-year Macronix Product Longevity Program (MPLP).
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