Datasheet > ISL12022

ISL12022

更新时间： 2024-12-01 11:11:39

品牌	Logo	应用领域
英特矽尔 - INTERSIL		温度补偿时钟
页数	文件大小	规格书
28页	370K
描述
Real Time Clock with On Chip ±5ppm Temp Compensation

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ISL12022 数据手册

ISL12022

Real Time Clock with On Chip ±5ppm Temp Compensation

Data Sheet

June 23, 2009

FN6659.2

Low Power RTC with Battery-Backed SRAM

and Embedded Temp Compensation ±5ppm

with Auto Daylight Saving

Features

• Real Time Clock/Calendar

- Tracks Time in Hours, Minutes and Seconds

- Day of the Week, Day, Month and Year

The ISL12022 device is a low power real time clock with an

embedded Temp sensor for oscillator compensation,

clock/calendar, power fail, low battery monitor, brownout

indicator, single periodic or polled alarms, intelligent

battery-backup switching, Battery Reseal™ function and 128

bytes of battery-backed user SRAM.

• On-chip Oscillator Compensation Over the Operating

Temp Range

- ±5ppm Over -40°C to +85°C

• 10-bit Digital Temperature Sensor Output

- ±2°C Accuracy

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.

• Customer Programmable Day Light Saving Time

• 15 Selectable Frequency Outputs

• 1 Alarm

- Settable to the Second, Minute, Hour, Day of the Week,

Day, or Month

Daylight Savings time adjustment is done automatically,

using parameters entered by the user. Power fail and battery

monitors offer user-selectable trip levels. A time stamp

- Single Event or Pulse Interrupt Mode

• Battery Reseal™ Function to Extend Battery Shelf Life

• Automatic Backup to Battery or Super Capacitor

function records the time and date of switchover from V

power, and also from V

BAT

to V

power.

- Operation to V = 1.8V

BAT

- 1.0µA Battery Supply Current

Pinout

• Battery Status Monitor

ISL12022

(8 LD SOIC)

TOP VIEW

- 2 User Programmable Levels

- Seven Selectable Voltages for Each Level

• Power Status Brownout Monitor

- Six Selectable Trip Levels, from 2.295V to 4.675V

IRQ/F

SCL

OUT

• Oscillator Failure Detection

BAT

• Time Stamp for First V

to V

, and Last V

BAT

to V

BAT

GND

SDA

• 128 Bytes Battery-Backed User SRAM

• I C Bus™

- 400kHz Clock Frequency

• 8 Ld SOIC Package

• Pb-Free (RoHS Compliant)

Applications

• Utility Meters

• POS Equipment

• Medical Devices

• Security Systems

• Vending Machines

• White Goods

• Printers and Copiers

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.

I C Bus™ is a trademark owned by NXP Semiconductors Netherlands, B.V.

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

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与ISL12022相关器件

型号	品牌	获取价格	描述	数据表
ISL12022IBZ	RENESAS	获取价格	Low Power RTC with Battery-Backed SRAM and Em
ISL12022IBZ	INTERSIL	获取价格	Real Time Clock with On Chip ±5ppm Temp Compe
ISL12022IBZ-T	RENESAS	获取价格	Low Power RTC with Battery-Backed SRAM and Em
ISL12022M	INTERSIL	获取价格	Low Power RTC with Battery Backed SRAM,Integr
ISL12022M	RENESAS	获取价格	Low Power RTC with Battery Backed SRAM, Integ
ISL12022M_09	INTERSIL	获取价格	Low Power RTC with Battery Backed SRAM, Integ
ISL12022M_10	INTERSIL	获取价格	Low Power RTC with Battery Backed SRAM,Integr
ISL12022MA	INTERSIL	获取价格	Low Power RTC with Battery Backed SRAM, Integ
ISL12022MA	RENESAS	获取价格	Low Power RTC with Battery Backed SRAM, Integ
ISL12022MA_10	INTERSIL	获取价格	Low Power RTC with Battery Backed SRAM, Integ

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