WAKE-UP TIMER IC PROGRAMMABLE WAKE-UP TIMER IC WITH BUILT-IN QUARTZ CRYSTAL S-35710M Rev.1.0_00 Pin Configuration1. HSOP-8QTable 2 List of Pins Top view Pin No. Symbol Description I/O Configuration 1 8 Input pin for 1 SCL Input CMOS input serial clock 2 7 Pin for positive 2 VDD − − 3 6 power supply _______ Input pin for CMOS input 4 5 3 RST Input reset signal (With pull-up resistor) 4 NC *2 No connection − − Bottom view 5 NC *2 No connection − − 8 1 6 VSS GND pin − − Output pin for 7 2 7 INT Output CMOS output interrupt signal 6 3 I/O pin for serial Nch open-drain output, 8 SDA Bi-directional data CMOS input 5 4 *1Figure 2*1. Connect the heat sink of backside at shadowed area to the board, and set electric potential GND. However, do not use it as the function of electrode. *2. The NC pin is electrically open. Therefore, leave it open or connect it to the VDD pin or the VSS pin. Caution Do not place a wiring on the backside of the package. 4