8-Bit Parallel I/O Calendar Clock

FEATURES:
• Internal counter for time (hour, minute, second), and calendar (leap year, year, month, day of month, day of week)
• Super low power consumption (IDD = 2 mA MAX. at VDD = 2.4 V)
• Automatic determination of leap year, manual setting possible
• 12 hour/24 hour mode selectable
• 8-bit parallel input/output in BCD data format
• 12 kinds of interval timer output (can be used as watchdog timer)
• Internal voltage detection circuit for automatic determination of battery run-down
• High accuracy