Intersil X1226
The X1226 device is a Real Time Clock with clock/calendar, two polled alarms with integrated 512x8 EEPROM, oscillator compensation, and battery backup switch. The oscillator uses an external, low-cost 32.768kHz crystal. This eliminates several external discrete components and a trim capacitor, saving board area and component cost.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 Compensation On Chip —Internal Feedback Resistor and Compensation 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
● Repetitive Alarms
● Temperature Compensation
● Pb-Free Plus Anneal Available (R...