Download SIM908_Hardware Design_V2.00

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Transcript 
Smart Machine Smart Decision
Figure 17: RTC supply from capacitor z
Non-chargeable battery for RTC
Figure 18: RTC supply from non-chargeable battery
z
Rechargeable battery for RTC
Figure 19: RTC supply from rechargeable battery
Coin-type rechargeable battery is recommended, such as XH414H-IV01E from Seiko can be used.
Typical charge-discharge curves for this battery are shown in the following figure.
Figure 20: Seiko XH414H-IV01E charge-discharge characteristic
SIM908_Hardware Design_V2.00
28
2012.05.07
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