时钟IC：DS1302的主电源是第1脚还是8脚

主电源是8脚

8p Vcc1 1PVcc2,用于主电源和备份电源的双电源引脚,主电源是第8脚.

vcc2 看英文解释

SIGNAL DESCRIPTIONS
VCC1– VCC1 provides low power operation in single supply and battery operated systems as well as low
power battery backup. In systems using the trickle charger, the rechargeable energy source is connected
to this pin.

VCC2– Vcc2 is the primary power supply pin in a dual supply configuration. VCC1 is connected to a
bac