Datasheet > ISL12028IV27AZ

ISL12028IV27AZ

更新时间： 2024-09-15 03:11:51

品牌	Logo	应用领域
英特矽尔 - INTERSIL		可编程只读存储器电动程控只读存储器电可擦编程只读存储器时钟
页数	文件大小	规格书
28页	424K
描述
Real Time Clock/Calendar with EEPROM

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ISL12028IV27AZ 数据手册

ISL12028

New Features

October 18, 2006

Data Sheet

FN8233.5

Real Time Clock/Calendar with EEPROM

Features

The ISL12028 device is a low power real time clock with

clock/calender, power-fail indicator, clock output and crystal

compensation, two periodic or polled alarms (CMOS output),

intelligent battery backup switching, CPU Supervisor,

integrated 512 x 8 bit EEPROM configured in 16 Byte per

page.

• 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

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.

- Repeat Mode (periodic interrupts)

• Automatic Backup to Battery or SuperCap

- Power Failure Detection

- 800nA Battery Supply Current

• On-Chip Oscillator Compensation

Pinout

- Internal Feedback Resistor and Compensation

Capacitors

ISL12028

(14 LD TSSOP/SOIC)

TOP VIEW

- 64 Position Digitally Controlled Trim Capacitor

- 6 Digital Frequency Adjustment Settings to ±30ppm

• 512 x 8 Bits of EEPROM:

BAT

/IRQ

OUT

- 16-Byte Page Write Mode (32 total pages)

- 8 Modes of Block Lock™ Protection

- Single Byte Write Capability

RESET

GND

SCL

SDA

- Data Retention: 50 years

- Endurance: >2,000,000 Cycles Per Byte

NC = No internal connection

• CPU Supervisor Functions:

- Power On Reset, Low Voltage Sense

- Watchdog Timer (0.25, 0.75, 1.75 sec)

• I²C* Interface - 400kHz Data Transfer Rate

• 14 Ld SOIC and 14 Ld TSSOP Packages

• Pb-Free Plus Anneal Available (RoHS Compliant)

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

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.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...28

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ISL12028IV27AZ-T	INTERSIL	获取价格	Real Time Clock/Calendar with EEPROM
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ISL12028IV27Z-T	INTERSIL	获取价格	Real Time Clock/Calendar with EEPROM
ISL12028IV30AZ	INTERSIL	获取价格	Real Time Clock/Calendar with EEPROM
ISL12028IV30AZ-T	INTERSIL	获取价格	Real Time Clock/Calendar with EEPROM
ISL12028IVAZ	INTERSIL	获取价格	Real Time Clock/Calendar with EEPROM
ISL12028IVAZ-T	INTERSIL	获取价格	Real Time Clock/Calendar with EEPROM
ISL12028IVZ	INTERSIL	获取价格	Real Time Clock/Calendar with EEPROM
ISL12028IVZ-T	INTERSIL	获取价格	Real Time Clock/Calendar with EEPROM
ISL12029	INTERSIL	获取价格	Real Time Clock/Calendar with EEPROM

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