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ISL12082IB8Z View Datasheet(PDF) - Intersil

Part NameDescriptionManufacturer
ISL12082IB8Z I2C-Bus™ Real Time Clock with Two Interrupts, Alarm, and Timer Intersil
Intersil Intersil
ISL12082IB8Z Datasheet PDF : 26 Pages
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ISL12082
®
I2C-BusReal Time Clock with Two Interrupts, Alarm, and Timer
Data Sheet
November 24, 2008
FN6731.3
Low Power RTC with Battery ReSeal,
2 IRQs, Hundredths of a Second Time,
and Crystal Compensation
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.
Pinouts
ISL12082
(8 LD SOIC)
TOP VIEW
X1
1
8
X2
2
7
GND
3
6
IRQ2
4
5
VDD
IRQ1/fOUT
SCL
SDA
ISL12082
(10 LD MSOP)
TOP VIEW
X1 1
10 VDD
X2 2
VBAT
3
GND
4
NC 5
9 IRQ1/fOUT
8 SCL
7 SDA
6 IRQ2
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)
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
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
I2C 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.
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