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Non-chargeable battery backup
Rechargeable battery backup
Note: The VRTC can be disabled, jus disconnect it in application circuit.
Coin-type rechargeable battery is recommended, such as XH414H-IV01E form Seiko can be used.
Typical charge-discharge curves for this battery are shown in the following figure.
SIM5215&SIM5216_Hardware Design_V2.02
Figure 13: RTC supply from non-chargeable battery
Figure 14: RTC supply from rechargeable battery
Smart Machine Smart Decision
24
2012-08-31
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