DATASHEET ISL12082 FN6731 Rev 4.00 I2C-Bus Real Time Clock with Two Interrupts, Alarm, and Timer, Low Power RTC with Sep 25, 2015 Battery ReSeal, 2 IRQs, Hundredths of a Second Time and Crystal Compensation The ISL12082 device is a low power real time clock with Features timing and crystal compensation, clock/calendar, power fail Real Time Clock/Calendar indicator, 2 IRQs, periodic or polled alarm, timer/watchdog, - Tracks Time in Hours, Minutes, Seconds, and and intelligent battery backup switching. Hundredths of a Second The oscillator uses an external, low-cost 32.768kHz crystal. - Day of the Week, Day, Month, and Year The real time clock tracks time with separate registers for 4 Selectable Frequency Outputs hours, minutes, seconds and hundredths of a second. The Alarm device has calendar registers for date, month, year and day - Settable to the Second, Minute, Hour, Day of the Week, of the week. The calendar is accurate through 2099, with Day, or Month automatic leap year correction. - Single Event or Pulse Interrupt Mode Pinouts Timer - 4 Selectable Timer Functions ISL12082 (8 LD SOIC) - 4 Selectable Timer Clock Frequencies TOP VIEW - Single Event or Pulse Interrupt Mode 1 8 V X1 DD Automatic Backup to Battery or Supercapacitor X2 2 7 IRQ1/f OUT Power Failure Detection GND 3 6 SCL Battery ReSeal IRQ2 4 5 SDA On-Chip Oscillator Compensation 2 I C Interface ISL12082 - 400kHz Data Transfer Rate (10 LD MSOP) 800nA Battery Supply Current TOP VIEW Small Package Options X1 1 10 VDD - 8 Ld SOIC Package - 10 Ld MSOP Package X2 2 9 IRQ1/f OUT Pb-Free (RoHS Compliant) V BAT 3 8 SCL Applications GND 4 7 SDA Utility Meters 5 6 NC IRQ2 HVAC Equipment Audio/Video Components Set-Top Box/Television 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 FN6731 Rev 4.00 Page 1 of 28 Sep 25, 2015 NO LONGER AVAILABLE OR SUPPORTEDISL12082 . Ordering Information PART NUMBER PART V RANGE TEMP. RANGE PACKAGE PKG. DD (Note) MARKING (V) (C) (RoHS Compliant) 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 (No longer available or supported) ISL12082IUZ-T* 12082 2.7 to 5.5 -40 to +85 10 Ld MSOP M10.118 (No longer available (Tape and Reel) or supported) *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 Rev 4.00 Page 2 of 28 Sep 25, 2015