DESCRIPTION
Thus allowing several hours of backup supply using cost effective MLCC capacitors. All addresses and data are transferred over an I2C-bus interface for communication with a host controller. It is available in a TSSOP14 plastic package or as a module combining the 32 kHz Crystal with the RTC IC in an ultrasmall, hermetically sealed C7 SMD package, factory calibrated to an initial accuracy of ± 1ppm. FEATURES
I Extreme low power consumption: 45 nA @ 3 V. I Wide operating voltage range: 1.2 V to 5.5 V. I Built-in tuning Fork crystal at 32’768 Hz I Time accuracy: possible to calibrate to ±1 ppm @ 25°C I Non-volatile configuration settings with user programmable offset value. I Configuration stored in EEPROM and mirrored in RAM I Password protection to secure configuration registers I Backup Switch and Trickle Charger function. I Provides year, month, date, weekday, hours, minutes and seconds. I Automatic leap year correction; 2000 to 2099 I 32 bit UNIX time counter. I Timer, alarm and external event functions with time stamp I Clock output: 32.768 kHz, 8192 Hz, 1024 Hz, 64 Hz, 32Hz, 1 Hz.