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| 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 |
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Available in RoHS/Pb-Free
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 Buy direct from Intersil
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 Check distributor inventory
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 Request samples
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Part No. |
Design-In
Status |
Temp. |
Package |
MSL |
Price
US $ |
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| ISL12082IB8Z |
Active |
Ind |
8 Ld SOIC |
1 |
1.15 |
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| ISL12082IB8Z-T |
Active |
Ind |
8 Ld SOIC T+R |
1 |
1.15 |
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| ISL12082IUZ |
Active |
Ind |
10 Ld MSOP |
1 |
1.21 |
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| ISL12082IUZ-T |
Active |
Ind |
10 Ld MSOP T+R |
1 |
1.21 |
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| The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice. |
| MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020 |
| SMD = Standard Microcircuit Drawing |
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 Description |
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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. |
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 Key Features |
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Real Time Clock/Calendar
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Tracks Time in Hours, Minutes, Seconds, and Hundredths of a Second
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Day of the Week, Day, Month, and Year
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4 Selectable Frequency Outputs
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Alarm
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Settable to the Second, Minute, Hour, Day of the Week, Day, or Month
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Single Event or Pulse Interrupt Mode
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Timer
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4 Selectable Timer Functions
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4 Selectable Timer Clock Frequencies
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Single Event or Pulse Interrupt Mode
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Automatic Backup to Battery or Supercapacitor
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Power Failure Detection
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Battery ReSeal™
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On-Chip Oscillator Compensation
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I2C Interface
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400kHz Data Transfer Rate
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800nA Battery Supply Current
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Small Package Options
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8 Ld SOIC Package
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10 Ld MSOP Package
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Pb-Free (RoHS Compliant)
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| Related Documentation |
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 Datasheet(s): |
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 Technical Homepage: |
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 Parametric Data |
| | VCC (V) | | 2.7 to 5.5 | | | VBAT (V) | | 1.8 to 5.5 | | | IBAT (nA) | | 800 | | | Alarms | | 1 | | | Crystal Frequency Trimming | | Y | | | Selectable Frequency Output | | 4 | | | CPU Supervisory Function POR | | N | | | CPU Supervisory Function Watchdog Timer | | N | | | Battery Seal | | Y | | | Battery Backup | | Y | | | IRQ_bar | | IRQ1/fOUT, IRQ2 | | | FOUT | | IRQ1/fOUT | | | RESET_bar | | N | | | Oscillator Compensation (ppm) | | -94 to +140 | | | SRAM | | N | | | Other Functions | | • Alarm
• Timer | |
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 Application Block Diagrams |
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| Applications |
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- 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
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