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
Support Communities
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ISL12082 sub-second on time re-setting
The sub-second register for the ISL12082 is read-only. If I want to re-synchronize the RTC to a given time, does the SS register clear itself when I write to the other RTC registers or is there another way to synchronize the ISL12082 to another clock to the ...
Jun 26, 2020
Support Communities
