1
®
FN6109.4
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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ISL1209
Real Time Clock/Calendar with Event Detection
Low Power RTC with Battery Backed
SRAM and Event Detection
The ISL1209 device is a low power real time clock with event
detect function, timing and crystal compensation,
clock/calendar, power fail indicator, periodic or polled alarm,
intelligent battery backup switching and battery-backed user
SRAM.
NOTE: The oscillator uses an external, low-cost 32.768kHz crystal.
The real time clock tracks time with separate registers for hours,
minutes, and seconds. 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.
Pinout
ISL1209
(10 LD MSOP)
TOP VIEW
Features
• Real Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Day, Month, and Year
• Security and Event Functions
- Tamper detection with Time Stamp
- Event Detection During Battery Packed or Normal
Modes
- Selectable Event Input Sampling Rates Allows Low
Power Operation
- Selectable Glitch Filter on Event Input Monitor
• 15 Selectable Frequency Outputs
• Single Alarm
- Settable to the Second, Minute, Hour, Day of the Week,
Day, or Month
- Single Event or Pulse Interrupt Mode
• Automatic Backup to Battery or Super Cap
• Power Failure Detection
• On-Chip Oscillator Compensation
• 2 Bytes Battery-Backed User SRAM
•I
2
C Interface
- 400kHz Data Transfer Rate
• 400nA Battery Supply Current
• Small Package
-10 Ld MSOP
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Utility Meters
• Set Top Box/Modem
• POS Equipment
• Network Routers, Hubs, Switches, Bridges
• Cellular Infrastructure Equipment
• Fixed Broadband Wireless Equipment
• Test Meters/Fixtures
• Vending Machine Management
• Security and Anti Tampering Applications
- Panel/Enclosure Status
- Warranty Reporting
- Time Stamping Applications
- Patrol/Security Check (Fire or Light Equipment)
- Automotive Applications
Ordering Information
PART
NUMBER*
PART
MARKING
V
DD
RANGE
(V)
TEMP
RANGE
(°C) PACKAGE
PKG.
DWG. #
ISL1209IU10 AGT 2.7 to 5.5 -40 to +85 10 Ld MSOP M10.118
ISL1209IU10Z
(Note)
ANV 2.7 to 5.5 -40 to +85 10 Ld MSOP
(Pb-free)
M10.118
*Add “-TK” suffix for tape and reel.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100% matte
tin plate termination finish, which are 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.
V
DD
IRQ/F
OUT
SCL
SDA
EVDET
X1
X2
V
BAT
EVIN
1
2
3
4
5
10
9
8
7
6
GND
Data Sheet October 17, 2006
