HTCSEMI HT8563ARZ

Microcircuit HT8563A is essentially the complete binary-decimal digital watch with calendar, alarm, timer and possesses low power consumption. Addresses and data are transferred in series via the double wire bi-directional bus. The microcircuit is intended for count of real time in hours, minutes and seconds, count of week days, date, month and year. The last day of the month is automatically adjusted for the months with fewer, than 31 days, including correction for the leap year. The watch functions in the 24 hour mode. The microcircuit HT8563A has the built-in power control circuit, which determines the power level <1V and forms the bit, signaling, that information about the real time may not be correct.

• count of seconds, minutes, hours, week days, date, months and years with consideration of leap years (until 2100)
• 400 kHz, double wire serial interface
• programmed orthogonal output signal
• function programming of alarm, timer and interruption
• automatic determination of the supply voltage drop
• consumption current of less, than 450 nA with supply of 2V with the operating oscillator
• operating temperature range: -40°C - +85°C