Description
I/O
Configuration
Pin for constant 1 32KO output of 32.768 Output
kHz
Nch open-drain output (no protective diode at VDD)
2 XOUT Connection pins 3 XIN for crystal oscillator
4 VSS GND pin
5
INT2
Output pin for interrupt signal 2
Output
Nch open-d
Features
- Low current consumption:
0.45 μA typ. (VDD = 3.0 V, Ta = +25°C).
- Constant output of 32.768 kHz clock pulse (Nch open-drain output).
- Wide range of operating voltage:
1.3 V to 5.5 V.
- Built-in clock correction function.
- Built-in free user register.
- 2-wire (I2C-bus) CPU interface.
- Built-in alarm interrupter.
- Built-in flag generator during detection of low power voltage or at power-on.
- Auto calendar up to the.