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ISL12023IVZ Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL12023IVZ Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 28 page 1 ® FN6682.2 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. I2C Bus™ is a trademark owned by NXP Semiconductors Netherlands, B.V. Copyright Intersil Americas Inc. 2008, 2009. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL12023 Real Time Clock with On Chip Temp Compensation ±5ppm Low Power RTC with Battery-Backed SRAM and Embedded Temp Compensation ± 5ppm with Auto Daylight Saving The ISL12023 device is a low power real time clock with an embedded Temp sensor for oscillator compensation, clock/calendar, power fail, low battery monitor, brownout indicator, single periodic or polled alarms, intelligent battery-backup switching, Battery Reseal™ function and 128 bytes of battery-backed user SRAM. The oscillator uses an external, low-cost 32.768kHz crystal. The real time clock tracks time with separate registers for hours, minutes, and seconds. The device has calendar registers for date, month, year and day of the week. The calendar is accurate through 2099, with automatic leap year correction. Daylight Savings time adjustment is done automatically, using parameters entered by the user. Power fail and battery monitors offer user-selectable trip levels. A time stamp function records the time and date of switchover from VDD to VBAT power, and also from VBAT to VDD power. Pinout ISL12023 (14 LD TSSOP) TOP VIEW Features • Real Time Clock/Calendar - Tracks Time in Hours, Minutes and Seconds - Day of the Week, Day, Month and Year • On-chip Oscillator Compensation Over the Operating Temp Range - ±5ppm Over -40°C to +85°C • 10-bit Digital Temperature Sensor Output - ±2°C Accuracy • Customer Programmable Day Light Saving Time • Clock Output with 15 Selectable Frequencies • 1 Alarm - Settable to the Second, Minute, Hour, Day of the Week, Day, or Month - Single Event or Pulse Interrupt Mode • Battery Reseal™ Function to Extend Battery Shelf Life • Automatic Backup to Battery or Super Capacitor - Operation to VBAT = 1.8V - 1.0µA Battery Supply Current • Battery Status Monitor - 2 User Programmable Levels - Seven Selectable Voltages for Each Level • Power Status Brownout Monitor - Six Selectable Trip Levels, from 2.295V to 4.675V • Oscillator Failure Detection • Time Stamp for First VDD to VBAT, and Last VBAT to VDD • 128 Bytes Battery-Backed User SRAM • Separate FOUT, IRQ, and LVRST Outputs •I2C Bus™ - 400kHz Clock Frequency • 14 Ld TSSOP Package • Pb-Free (RoHS Compliant) Applications • Utility Meters • POS Equipment • Medical Devices • Security Systems • Vending Machines • White Goods • Printers and Copiers VDD IRQ SCL SDA X1 X2 VBAT 2 3 4 5 13 12 11 GND FOUT LVRST NC NC NC NC 1 6 7 8 9 10 14 Data Sheet June 24, 2009 |
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