PT7C43390C

PT7C43390/43390C ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Real-time Clock Module Features  Low current consumption: 0.3µA typ. (VDD=3.0V, TA = 25°C)  Wide operating voltage range: 1.35 to 5.5 V  Minimum time keeping operation voltage: 1.25 V  Built-in clock adjustment function  Built-in free user register  2-wire (I2C-bus) CPU interface  Built-in alarm interrupter  Built-in flag generator at power down or power on  Auto calendar up to the year 2099, automatic leap year calculation function  Built-in constant voltage circuit  Built-in 32 kHz crystal oscillator circuit  Built-in 32 kHz crystal for PT7C43390C  Package: SOIC-8L, TSSOP-8L, and TDFN2x3-8L for PT7C43390; TDFN4x4-8L for PT7C43390C Applications  Mobile game device, mobile phone  Industrial control  Electronic power meter  DVD recorder  Car navigation  IP Camera, DVR, NVR Description The PT7C43390 is a CMOS I2C-bus real-time clock IC, which operates with the very low current consumption and in the wide range of operation voltage. The operation voltage is 1.35 V to 5.5 V so that the RTC can be used for various power supplies from main supply to backup battery. In the system which operates with a backup battery, the in...