DATASHEET
ISL12024
FN6370
Rev 3.00
August 18, 2008
Real-Time Clock/Calendar with Embedded Unique ID
The ISL12024 device is a micro-power real-time clock with
embedded 64-bit unique ID, timing and crystal
compensation, clock/calender, power-fail indicator, two
periodic or polled alarms, intelligent battery backup
switching, and integrated 512x8-bit EEPROM configured in
16 Bytes per page.
Features
• Real-Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Day, Month and Year
- 3 Selectable Frequency Outputs
• 64-bit Unique ID
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.
• Two Non-Volatile Alarms
- Settable on the Second, Minute, Hour, Day of the Week,
Day or Month
- Repeat Mode (Periodic Interrupts)
• Automatic Backup to Battery or Super Cap
• On-Chip Oscillator Compensation
- Internal Feedback Resistor and Compensation
Capacitors
- 64 Position Digitally Controlled Trim Capacitor
- 6 Digital Frequency Adjustment Settings to ±30ppm
Ordering Information
PART
NUMBER
(Note)
TEMP
PART
MARKING RANGE
V
RANGE PACKAGE PKG.
(°C)
DD
(Pb-free) DWG. #
ISL12024IBZ* 12024 IBZ 2.7V to -40 to +85 8 Ld SOIC M8.15
5.5V
• 512x8-Bits of EEPROM
- 16-Bytes Page Write Mode (32 total pages)
- 8 Modes of BlockLock™ Protection
- Single Byte Write Capability
ISL12024IVZ* 2024 IVZ
2.7V to -40 to +85 8 Ld TSSOP M8.173
5.5V
*Add “-T” suffix for tape and reel. Please refer to TB347 for details on
reel specifications.
• High Reliability
- Data Retention: 50 years
- Endurance: 2,000,000 Cycles Per Byte
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets, molding compounds/die attach
materials, and 100% matte tin plate plus anneal (e3 termination finish,
which is 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.
2
• I C Bus™
- 400kHz Data Transfer Rate
• 800nA Battery Supply Current
• Package Options
- 8 Ld SOIC and 8 Ld TSSOP Packages
- Pin-Compatible with the ISL12026
Pinouts
ISL12024
(8 LD SOIC)
TOP VIEW
• Pb-Free (RoHS Compliant)
Applications
V
V
X1
X2
DD
1
2
8
7
6
5
• Utility Meters
BAT
• Audio Video Equipment
• Modems
SCL
SDA
IRQ/F
OUT
3
4
GND
• Network Routers, Hubs, Switches, Bridges
• Cellular Infrastructure Equipment
• Fixed Broadband Wireless Equipment
• Pagers/PDA
ISL12024
(8 LD TSSOP)
TOP VIEW
V
BAT
SCL
1
2
8
7
6
5
• POS Equipment
V
SDA
DD
X1
X2
GND
IRQ/F
• Test Meters/Fixtures
3
4
OUT
• Office Automation (Copiers, Fax)
• Computer Products
• Security Related Application
FN6370 Rev 3.00
August 18, 2008
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