WAKE-UP TIMER IC PROGRAMMABLE WAKE-UP TIMER IC WITH BUILT-IN QUARTZ CRYSTAL S-35710M Rev.1.0_00 Block Diagram Pul -up RST 32.768 kHz Chattering Quartz crystal elimination Oscillation circuit circuit Internal reset signal Divider, INT pin INT Timing generator control er Wake-up time register Comparator Timer (24-bit) Power-on VDD detection Time register circuit Constant SDA voltage circuit Serial interface VSS SCL Figure 1 2