Device designs are increasingly adopting microcontrollers that are either limited in the amount of embedded memory they have on-chip or have eschewed flash memory in its entirety. One reason for this is that while it’s feasible to embed however much memory you want, the natural trend toward smaller geometries to achieve higher performance makes it prohibitively expensive to include or expand the embedded memory.
New breeds of high-performance controllers, such as the flash-less NXP RT series of MCUs, are removing embedded flash to meet the price and performance requirements of today’s equipment designs for the IoT and the industrial IoT.
这意味着外部SPI Flash正在向聚光灯中边缘。凭借MCU无缝操作，以确保其CPU性能不受影响，同时也将功耗保持为最低限度。
要作为MCU的理想合作伙伴，外部闪光灯应该：
- 执行低功耗快速读写操作，
- offer extremely low-power sleep modes,
- reduce the CPU cycles required to erase and store data,
- reduce or eliminate the need for bus transactions between the MCU and flash to determine status, and
- 在修改存储在闪光灯中时，避免使用系统RAM缓冲器。
Features like these are built into our new FusionHD NOR flash memory. Check out our latest TechShop video demonstrating FusionHD’s contribution to reducing overall system energy usage by up to 70%, while operating 5 times faster compared to competitive flash devices.
通过利用FusionHD达到这个性能low-power architecture with a set of system enhancing features. These features include:
- A small page erase architecture for faster write performance and reduced system power
- 一个易于实现的活动中断功能，可使MCU浪费有价值的CPU周期和电源来监控闪光灯的状态
- 单个读取修改写命令简化了软件，加快数据记录，并减少CPU开销
此外，FusionHD拥有一系列其他省电功能，使其成为您的下一个功率意识或电池供电的设计需要代码存储，数据存储或密集数据记录的最适合。
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