Serial RTC with Alarm and Timer

• Built-in frequency adjusted 32.768KHz crystal oscillator
• Serial interface that can be controlled through three signal lines
• Week , Day , hour , and minute alarm interrupt functions
• Interval timer interrupt function that can be set with an interval ranging from 1/4096th of a second to 255minutes
• Dual dedicated interrupt outputs for software maskable alarms and for timers
• Functions that detect halting of crystal oscillation, and when the time is being updated
• Automatic leap year compensation function
• Wide interface voltage range, from 1.6 to 5.5V
• Wide timing voltage range, from 1.6 to 5.5V
• Low current consumption : 0.5mA/3V (typ.)
• Small SOP package suited for high-density mounting