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ISL12027IB27AZ-T

Description
Real Time Clock REAL TIME CLK/CLNDR W/EEPROM 2 92VSET
Categorysemiconductor    Analog mixed-signal IC   
File Size1MB,29 Pages
ManufacturerIntersil ( Renesas )
Websitehttp://www.intersil.com/cda/home/
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ISL12027IB27AZ-T Overview

Real Time Clock REAL TIME CLK/CLNDR W/EEPROM 2 92VSET

ISL12027IB27AZ-T Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerIntersil ( Renesas )
Product CategoryReal Time Clock
RoHSDetails
Mounting StyleSMD/SMT
Package / CaseSOIC-8
RTC Bus InterfaceSerial, I2C
Date FormatDW:DM:M:Y
Time FormatHH:MM:SS
Battery Backup SwitchingBackup Switching
RTC Memory Size512 B
Supply Voltage - Max5.5 V
Supply Voltage - Min2.7 V
Minimum Operating Temperature- 40 C
Maximum Operating Temperature+ 85 C
PackagingReel
FunctionAlarm, Calendar, Clock, Interrupt, Timer
Height1.5 mm (Max)
Length5 mm (Max)
ProductReal Time Clocks
Width4 mm (Max)
Factory Pack Quantity2500
Unit Weight0.019048 oz
OBSOLETE PRODUCT
NO RECOMMENDED REPLACEMENT
contact our Technical Support Center at
1-888-INTERSIL or www.intersil.com/tsc
DATASHEET
FN8232
Rev 9.00
September 23, 2015
ISL12027, ISL12027A
Real Time Clock/Calendar with EEPROM
The ISL12027 device is a low power real time clock with
timing and crystal compensation, clock/calender, power-fail
indicator, two periodic or polled alarms, intelligent battery
backup switching, CPU Supervisor and integrated 512x8-bit
EEPROM, in 16 Byte per page format.
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.
The ISL12027 and ISL12027A Power Control Settings are
different. The ISL12027 uses the Legacy Mode Setting, and
the ISL12027A uses the Standard Mode Setting.
Applications that have V
BAT
> V
DD
will require only the
ISL12027A. Please refer to“Power Control Operation” on
page 15 for more details. Also, please refer to “I
2
C
Communications During Battery Backup and LVR Operation”
on page 24 for important details.
Features
• Real Time Clock/Calendar
- Tracks Time in Hours, Minutes and Seconds
- Day of the Week, Day, Month and Year
• 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
• 512x8-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
• I
2
C-bus™ Interface
- 400kHz Data Transfer Rate
• 800nA Battery Supply Current
• Package Options
- 8 Ld SOIC and 8 Ld TSSOP Packages
• Pb-Free (RoHS Compliant)
Pinouts
ISL12027, ISL12027A
(8 LD TSSOP)
TOP VIEW
V
BAT
V
DD
X1
X2
1
2
3
4
8
7
6
5
SCL
SDA
GND
RESET
ISL12027, ISL12027A
(8 LD SOIC)
TOP VIEW
X1
X2
RESET
GND
1
2
3
4
8
7
6
5
V
DD
V
BAT
SCL
SDA
Applications
• Utility Meters
• HVAC Equipment
• Audio/Video Components
• 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
FN8232 Rev 9.00
September 23, 2015
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