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有没有哪款430可以替代F5418的，然后带了RTC电池的？RTC没有备用电池管脚，太不方便了
MSP430F5xxx&F6xxx系列有Battery Backup System, 可以支持RTC_B&RTC_C外部电池供电。具体参见MSP430F5xxx&F6xxx usr guide 相关章节。
http://www.ti.com/lsds/ti/microcontroller/16-bit_msp430/product_search.page ， 点击Real-time Clock / Yes, with battery backup 就可以找到含有此功能的所有料号。
