Real Time Clock/Calendar with I2C Bus™ and EEPROM The ISL12029 device is a low power real time clock with clock/calendar, power-fail indicator, clock output and crystal compensation, two periodic or polled alarms (open drain output), intelligent battery backup switching, CPU Supervisor, integrated 512x8-bit EEPROM configured in 16 bytes per page. Features • Real Time Clock/Calendar - Tracks Time in Hours, Minutes and Seconds - Day of the Week, Day, Month and Year - 3 Selectable Frequency Outputs • Two Non-Volatile Alarms - Settable on the Second, Minute, Hour, Day of the Week, Day or Month - Repeat Mode (periodic interrupts) • Automatic Backup to Battery or SuperCap - Power Failure Detection - 800nA Battery Supply Current • On-Chip Oscillator Compensation: - Internal Feedback Resistor and Compensation Capacitors - 64 Position Digitally Controlled Trim Capacitor - 6 Digital Frequency Adjustment Settings to ±30ppm • 512x8 Bits of EEPROM - 16-Byte Page Write Mode (32 total pages) - 8 Modes of BlockLock™ Protection - Single Byte Write Capability - Data Retention: 50 years - Endurance: >2,000,000 Cycles Per Byte • CPU Supervisor Functions - Power-On Reset, Low Voltage Sense - Watchdog Timer (0.25s, 0.75s, 1.5s) • I2C Interface - 400kHz Data Transfer Rate • 14 Ld SOIC and 14 Ld TSSOP Packages • Pb-Free (RoHS Compliant) Applications • Utility Meters • HVAC Equipment • Audio/Video Components • Modems • Network Routers, Hubs, Switches, Bridges • Cellular Infrastructure Equipment • Fixed Broadband Wireless Equipment • Pagers/PDA • POS Equipment • Test Meters/Fixtures • Office Automation (Copiers, Fax) • Home Appliances • Computer Products • Other Industrial/Medical/AutomotivePAR
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