描述
价格便宜的半导体存储器，可用锂电池做备用电源。它存储的内容是易失的，掉电后内容丢失；当系统掉电时，用户程序可以保存在只读存储器EEPROM或由高能电池支持的RAM中。EEPROM兼有ROM的非易失性和RAM的随机存取优点，用来存放需要长期保存的重要数据。
3BSE027070R5 选择放心 诚信交易 7天验收 1年质保
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