X1243S8

Real Time Clock/Calendar/Alarm with EEPROM Features • 2 alarms—interrupt output - Settable on the second, 10s of seconds, minute, 10s of minutes, hour, day, month, or day of the week - Repeat alarm for time base generation • 2-wire interface interoperable with I2C - 400kHz data transfer rate • Secondary power supply input with internal switch-over circuitry • 2Kbytes of EEPROM - 64-byte page write mode - 3-bit Block Lock™ protection • Low power CMOS -