X1226 Datasheet | Intersil

® 4K (512 x 8), 2-Wire™ RTC Data Sheet May 8, 2006 FN8098.3 Real Time Clock/Calendar with EEPROM Features - Real Time Clock/Calendar - Tracks Time in Hours, Minutes, and Seconds - Day of the Week, Day, Month, and Year - 2 Polled Alarms (Non-volatile) - Settable on the Second, Minute, Hour, Day of the Week, Day, or Month - Repeat Mode (periodic interrupts) - Oscillator pensation On Chip - Internal Feedback Resistor and pensation Capacitors - 64 Position Digitally Controlled Trim Capacitor - 6 Digital Frequency Adjustment Settings to ±30ppm - Battery Switch or Super Cap Input - 512 x 8 Bits of EEPROM - 64-Byte Page Write Mode - 8 Modes of Block Lock™ Protection - Single Byte Write Capability - High Reliability - Data Retention: 100 Years .. - Endurance: 100,000 Cycles Per Byte - 2-Wire™ Interface Interoperable with I2C - 400kHz Data Transfer Rate - Frequency Output (SW Selectable: Off, 1Hz, 4096Hz or 32.768kHz) - Low Power CMOS - 1.25µA Operating Current (Typical) - Small Package Options - 8 Ld SOIC and 8 Ld TSSOP...