ISL12026 Datasheet, PDF (1/24 Pages) Intersil Corporation – Real Time Clock/Calendar with EEPROM

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Data Sheet
New Features
October 23, 2006
ISL12026
FN8231.5
Real Time Clock/Calendar with EEPROM
The ISL12026 device is a micro power real time clock with
timing and crystal compensation, clock/calender, power-fail
indicator, two periodic or polled alarms, intelligent battery
backup switching, and integrated 512 x 8 bit EEPROM
configured in 16 Byte per page.
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.
Ordering Information
TEMP
PART
PART
V_DD RANGE
PKG.
NUMBER MARKING RANGE (°C) PACKAGE DWG. #
ISL12026IBZ 12026 IBZ _{2.7V to} -40 to +85 8 Ld SOIC M8.15
(See Note)
5.5V
(Pb-Free)
ISL12026IVZ 2026 IVZ _{2.7V to} -40 to +85 8 Ld TSSOP M8.173
(See Note)
5.5V
(Pb-Free)
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.
Add “-T” suffix for tape and reel.
Pinouts
ISL12026
(8 LD SOIC)
TOP VIEW
X1
1
8
X2
2
7
IRQ/F_OUT
3
6
GND
4
5
V_DD
V_BAT
SCL
SDA
V_BAT
V_DD
X1
X2
ISL12026
(8 LD TSSOP)
TOP VIEW
1
8
SCL
2
7
SDA
3
6
GND
4
5
IRQ/F_OUT
Features
• Real Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Day, Month, and Year
- 3 Selectable Frequency Outputs
• 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 SuperCap
• On-Chip Oscillator Compensation
- Internal Feedback Resistor and Compensation
Capacitors
- 64 Position Digitally Controlled Trim Capacitor
- 6 Digital Frequency Adjustment Settings to ±30ppm
• 512 x 8 Bits of EEPROM
- 16-Byte Page Write Mode (32 total pages)
- 8 Modes of BlockLock™ Protection
- Single Byte Write Capability
• High Reliability
- Data Retention: 50 years
- Endurance: >2,000,000 Cycles Per Byte
• I²C Interface
- 400kHz Data Transfer Rate
• 800nA Battery Supply Current
• Package Options
- 8 Ld SOIC and 8 Ld TSSOP Packages
• Pb-Free Plus Anneal Available (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
• Other Industrial/Medical/Automotive
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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