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CC2530、CC2540、CC2541内部是否有EEPROM呢

Other Parts Discussed in Thread: CC2540, CC2530, CC2541, BLE-STACK

我们测试一款电路板,用的是CC2540,发现有个倒计时功能,断了电源后,倒计时可以保存,重新上电后会继续倒计,查看了CC2540手册亦没发出有EEPROM,这里想再确认一下,请问这几款MCU是否支持断电数据保存功能,也就是有没有带EEPPROM呢?谢谢.(板子上是没有时钟芯片亦没电池的)