X1226S8IZ

Product Summary

The X1226S8IZ 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. All compensation and trim components are integrated on the chip. This eliminates several external discrete components and a trim capacitor, saving board area and component cost. The typical applications of X1226S8IZ include: (1)Utility Meters; (2)HVAC Equipment; (3)Audio / Video Components; (4)Set Top Box / Television; (5)Modems; (6)Network Routers, Hubs, Switches, Bridges; (7)Cellular Infrastructure Equipment; (8)Fixed Broadband Wireless Equipment; (9)Pagers / PDA; (10)POS Equipment; (11)Test Meters / Fixtures; (12)Office Automation (Copiers, Fax); (13)Home Appliances; (14)Computer Products; (15)Other Industrial / Medical / Automotive.

Parametrics

X1226S8IZ absolute maximum ratings: (1)VCC supply voltage range: -0.3 to +7.0V; (2)Voltages on all pins with respect to GND: -0.3 to VCC+0.3V; (3)Operating ambient temperature: 0 to +70℃; (4)Storage temperature: -65 to +150℃.

Features

X1226S8IZ features: (1)Real Time Clock/Calendar: Tracks time in Hours, Minutes, and Seconds; Day of the Week, Day, Month, and Year; (2)2 Polled Alarms (Non-volatile): Settable on the Second, Minute, Hour, Day of the Week, Day, or Month; Repeat Mode (periodic interrupts); (3)Oscillator Compensation On Chip: Internal feedback resistor and compensation capacitors; 64 position Digitally Controlled Trim Capacitor; 6 digital frequency adjustment settings to ±30ppm; (4)Battery Switch or Super Cap Input; (5)512 x 8 Bits of EEPROM: 64-Byte Page Write Mode; 8 modes of Block Lock Protection; Single Byte Write Capability; (6)High Reliability: Data Retention: 100 years; Endurance: 100,000 cycles per byte; (7)2-Wire Interface Interoperable With I2C: 400kHz data transfer rate; (8)Frequency Output (SW Selectable: Off, 1Hz, 4096Hz or 32.768kHz); (9)Low Power CMOS: 1.25μA Operating Current (Typical); (10)Small Package Options: 8 Ld SOIC and 8 Ld TSSOP; (11)Repetitive Alarms; (12)Temperature Compensation; (13)Pb-Free Plus Anneal Available (RoHS Compliant).

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