ISL12082
I²C-Bus™ Real Time Clock with Two Interrupts, Alarm, and Timer Low Power RTC with Battery ReSeal™, 2 IRQs, Hundredths of a Second Time, and Crystal Compensation

Key Features

• Real Time Clock/Calendar
• Tracks Time in Hours, Minutes, Seconds, and Hundredths of a Second
• Day of the Week, Day, Month, and Year
• 4 Selectable Frequency Outputs
• Alarm
• Settable to the Second, Minute, Hour, Day of the Week, Day, or Month
• Single Event or Pulse Interrupt Mode
• Timer
• 4 Selectable Timer Functions
• 4 Selectable Timer Clock Frequencies
• Single Event or Pulse Interrupt Mode
• Automatic Backup to Battery or Supercapacitor
• Power Failure Detection
• Battery ReSeal™
• On-Chip Oscillator Compensation
• I²C Interface
• 400kHz Data Transfer Rate
• 800nA Battery Supply Current
• Small Package Options
• 8 Ld SOIC Package
• 10 Ld MSOP Package
• Pb-Free (RoHS Compliant)

Description

The ISL12082 device is a low power real time clock with timing and crystal compensation, clock/calendar, power fail indicator, 2 IRQs, periodic or polled alarm, timer/watchdog, and intelligent battery backup switching.

The oscillator uses an external, low-cost 32.768kHz crystal. The real time clock tracks time with separate registers for hours, minutes, seconds and hundredths of a second. 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.

Applications

• Utility Meters
• 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