存储集成电路,常称存储器,俗称记忆块。根据工作原理分类可以分为随机存储器RAM与只读存储器ROM等。其中RAM是一种随机读写存储器(Random Access Memory),能够随时在任一地址读出内容或写入新内容。RAM的主要优点是:使用灵活、读写方便;突出缺点是:不能长期保存信息,一旦停电,所存信息就 Memory integrated circuits, commonly known as memory, commonly known as memory block. According to the working principle of classification can be divided into random access memory RAM and read-only memory ROM. Among them RAM is a random access memory (Random Access Memory), at any address at any time to read out the content or write new content. RAM’s main advantages are: flexible use, easy to read and write; Outstanding shortcoming is: can not long-term preservation of information, in the event of power failure, the stored information