More than Storing Bytes: Flash can Reduce MCU System Power

More than Storing Bytes: Flash can Reduce MCU System Power

器件设计越来越多地采用微控制器,这些微控制器可在芯片上的嵌入式内存量中受到限制,或者整体上避免了闪存。其中一个原因是,虽然嵌入了许多内存是不可行的,但较小的几何形状的自然趋势使得较高的性能使得它包括包括或扩展嵌入式内存的昂贵昂贵。

新产品的高性能控制器,如快速的NXP RT系列MCU,正在拆除嵌入式闪光,以满足当今IOT和工业IOT的设备设计的价格和性能要求。

This means that external SPI flash is edging into the spotlight. With it comes the challenge to operate seamlessly with the MCU to ensure its CPU performance is not affected, while also keeping power consumption to a minimum.

作为一个理想的伴侣the MCU, the external flash should:

  • perform low-power fast read and write operations,
  • 提供极低的睡眠模式,
  • 减少擦除和存储数据所需的CPU周期,
  • 减少或消除在MCU和Flash之间进行总线交易以确定状态,以及
  • avoid the use of system RAM buffers when modifying data stored in the flash.

这些功能如,我们的新FusionHD和闪存内置。查看我们的最新科技视频,演示了FusionHD将整体系统能源使用减少70%的贡献,而与竞争性闪光灯设备相比运行5倍。

FusionHD通过利用具有一组系统增强功能的低功耗架构来实现这种性能。这些功能包括:

  • 一个小页擦除架构,用于更快的写性能和减少的系统功率
  • An easy-to-implement Active Interrupt feature that stops the MCU from wasting valuable CPU cycles and power to monitor the status of the flash
  • A single Read Modify Write command which simplifies software, speeds up data logging, and reduces CPU overhead

Plus, FusionHD has a host of other power saving features that make it a best-fit for your next power conscious or battery powered design needing code storage, data storage or intensive data logging.

Related article:A Fresh New Look for Microcontrollers and their Memory Architectures