X1226 Overview
The X1226 device is a Real Time Clock with clock/ calendar, two polled alarms with integrated 512x8 EEPROM, oscillator pensation, and battery backup switch. The oscillator uses an external, low-cost 32.768kHz crystal. All pensation and trim ponents are integrated on the chip.
X1226 Key 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 (perio
- Oscillator pensation on chip -Internal feedback resistor and pensation capacitors -64 position Digitally Controlled Trim
- 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-Lead SOIC and 8-Lead TSSOP BLOCK DIAGRAM
