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..
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.
- Buil.
