Xicor 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
Repetitive Alarms & Temperature Compensation 4K (512 x 8) X1226 Real Time Clock/Calendar with EEPROM 2-Wire™ RTCFEATURES
● 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...