1.1Revolution Education LtdDS13022010-05-26RTCSPISMDRTCDS1302SO8 [SMD]DS1302 SPI Real Time ClockConnect to the positive rail of the power supply in your circuitConnect this pin to a 32kHz watch crystalConnect this pin to a 32kHz watch crystalConnect to the 0V (ground) of the power supply in your circuitThis pin is used as a chip enable and to initiate communications with the device. This pin is active high and the chip will be enabled when this pin has a logic high presented to it. Connect this pin to a digital output pin of your controllerThis pin is used to read data from the device and to write data to the deviceConnect this pin to the 'SPI Clock' (SCLK) signal of the controllerConnect this pin to the positive connection of a 3V battery