Macronix octaflash UW Series provides Flash solutions for NXP processors

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Macronix's MX25UW high efficiency octaflash flash memory family has been selected for NXP Semiconductor’s S32Z and S32E real-time processors for safe integration of real-time applications.

The news marks a significant step in the deployment of Macronix OctaBus Memory technology in NXP’s S32 Automotive Platform, whose MCUs and processors are designed to address vehicles’ connectivity, security and safety challenges.

The MX25UW high efficiency octaflash flash memory family offers devices with densities ranging from 64Mb (8MB) to 2Gb (256MB) in Automotive Grade 1 (-40 0C to +125 0C) and supports built-in error-correction code (ECC) for single-error correcting and double-error detecting (SECDED), and Automotive Safety Integrity Level D (ASIL D)-certified – the highest classification and the most stringent safety level within the ISO 26262 automotive functional safety standard.

The memory features a single- or Octal-I/O interface, low power (1.7V to 2V) and Double Transfer Rate (DTR) mode operation for fast data transfer of up to 400 MHz – the fastest serial flash in the industry. The MX25UW family also provides a multiple-bank structure that allows high efficiency operation.

The company describes it as the ‘ideal’ solution for over-the-air (OTA) update applications, which are becoming more prevalent in the “connected car” market and enable a fast, efficient method of providing them with up-to-date data.

The NXP S32Z and S32E real-time processors are designed for multi-application integration to support new domain and zonal vehicle E/E architectures and software-defined vehicles. The S32Z processors are intended for safety processing and domain and zonal control, while the S32E processors are suited for electric vehicle (xEV) control and smart actuation.

They feature eight split-lock Arm Cortex-R52 cores running up to 1 GHz, a Cortex-M33 lock-step pair of cores (system manager) and a DSP/ML processor for advanced predictive control and machine learning applications. They additionally include a CAN communications accelerator (FlexLLCE), integrated Ethernet switch (NETC3) and hardware security engine (HSE) that support public key infrastructure (PKI).

Both the S32Z and S32E processors are certified for ISO/SAE 21434 cyber security and ISO 26262:2018 functional safety. They are AEC-Q100 Automotive Grade 1 compliant, supporting ambient temperatures between -40 0C to +125 0C.

“Safety is a top priority in automotive electronic systems that use our S32Z and S32E processors for real-time applications,” said Andy Birnie, NXP Senior Director of Solutions & Applications for Automotive Processors. “Macronix shares that same approach to automotive safety, making the selection of the MX25UW flash memory family for our S32Z and S32E processors straightforward.”

The NXP GreenBox 3 hardware platform integrates the S32E288 processor with 32 MB of Macronix MX25UW25645G flash memory for evaluation and is supported by the NXP S32 Flash Tool.