NAND闪存是一种比硬盘驱动器更好的存储设备，在不超过4GB的低容量应用中表现得尤为明显。随着人们持续追求功耗更低、重量更轻和性能更佳的产品，NAND被证明极具吸引力。NAND闪存是一种非易失性存储技术，即断电后仍能保存数据。它的发展目标就是降低每比特存储成本、提高存储容量。
DM5403/DM7403 Quad 2-Input NAND Gates with Open-Collector Outputs:This device contains four independ
MCS-51单片机结构。由ATMEL公司生产的89C51将EPROM改成了4K的闪速存储器，他们的结构大同小异，本章将对8051单片机的结构作一介绍。
This application note describes the three methods that can be used toprogram the Flash code memo
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This document gives a brief list of features for the89C51Rx+/Rx2/66x family of microcontrollers
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