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I²C real-time clock

I²C real-time clock
The PCF8583' is areal-time clock calendar with PC interface. The addition of the components shown in this article gives a standard application of the IC. lf the components are surface-mount types, a very compact design results that can be built into, say, a mini DIN plug. A drawback is that, without battery back-up, all data and settings of the clock are lost when the supply of the PCF8583 fails.
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