Real-Time Clock Specifications - Hitachi CE50-10 Instruction Manual

C. Real-time Clock Specifications
C. Real-time Clock Specifications
This unit employs an RTC (real-time clock) IC for its internal clock. The RTC incorporates the calendar and continues
to run on a backup battery while the power is off.
Table C‒1: Real-time clock specifications
Item Specification
Clock function Hour, minute, second (24 hour system)
Date function Year, month, day
Time accuracy #
Plus-minus 9 seconds per day or less
Battery backup Lithium battery
#
Reference value when the ambient temperature is 25 degrees Celsius.
159