ISL12082 2 I C-Bus Real Time Clock with Two Interrupts, Alarm, and Timer Data Sheet November 24, 2008 FN6731.3 Low Power RTC with Battery ReSeal , Features 2 IRQs, Hundredths of a Second Time, Real Time Clock/Calendar and Crystal Compensation - Tracks Time in Hours, Minutes, Seconds, and Hundredths of a Second The ISL12082 device is a low power real time clock with - Day of the Week, Day, Month, and Year timing and crystal compensation, clock/calendar, power fail indicator, 2 IRQs, periodic or polled alarm, timer/watchdog, 4 Selectable Frequency Outputs and intelligent battery backup switching. Alarm The oscillator uses an external, low-cost 32.768kHz crystal. - Settable to the Second, Minute, Hour, Day of the Week, The real time clock tracks time with separate registers for Day, or Month hours, minutes, seconds and hundredths of a second. The - Single Event or Pulse Interrupt Mode device has calendar registers for date, month, year and day Timer of the week. The calendar is accurate through 2099, with - 4 Selectable Timer Functions automatic leap year correction. - 4 Selectable Timer Clock Frequencies - Single Event or Pulse Interrupt Mode Pinouts Automatic Backup to Battery or Supercapacitor ISL12082 (8 LD SOIC) Power Failure Detection TOP VIEW Battery ReSeal 1 8 V X1 DD On-Chip Oscillator Compensation X2 2 7 IRQ1/f OUT 2 GND 3 6 I C Interface SCL 4 5 IRQ2 SDA - 400kHz Data Transfer Rate 800nA Battery Supply Current Small Package Options ISL12082 - 8 Ld SOIC Package (10 LD MSOP) - 10 Ld MSOP Package TOP VIEW Pb-Free (RoHS Compliant) VDD X1 1 10 Applications X2 2 9 IRQ1/f OUT Utility Meters V 8 BAT 3 SCL HVAC Equipment Audio/Video Components GND SDA 4 7 Set-Top Box/Television 5 6 NC IRQ2 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 CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Intersil (and design) is a registered trademark of Intersil Americas Inc. 2 I C Bus is a trademark owned by NXP Semiconductors Netherlands, B.V. Copyright Intersil Americas Inc. 2008. All Rights Reserved. All other trademarks mentioned are the property of their respective owners.ISL12082 . Ordering Information PART NUMBER PART V RANGE TEMP. RANGE PACKAGE PKG. DD (Note) MARKING (V) (C) (Pb-Free) DWG. ISL12082IB8Z 12082 IBZ 2.7 to 5.5 -40 to +85 8 Ld SOIC M8.15 ISL12082IB8Z-T* 12082 IBZ 2.7 to 5.5 -40 to +85 8 Ld SOIC M8.15 (Tape and Reel) ISL12082IUZ 12082 2.7 to 5.5 -40 to +85 10 Ld MSOP M10.118 ISL12082IUZ-T* 12082 2.7 to 5.5 -40 to +85 10 Ld MSOP M10.118 (Tape and Reel) *Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. Block Diagram SDA SECONDS SDA BUFFER 2 I C RTC MINUTES INTERFACE SCL SCL CONTROL BUFFER LOGIC HOURS DAY OF WEEK X1 CRYSTAL RTC DATE OSCILLATOR DIVIDER X2 MONTH YEAR V DD POR FREQUENCY TIMER ALARM OUT CONTROL REGISTERS V TRIP SWITCH IRQ2 V INTERNAL BAT SUPPLY IRQ1/f OUT FN6731.3 2 November 24, 2008