ISL12023 Ver la hoja de datos (PDF) - Renesas Electronics

Número de pieza

componentes Descripción

Fabricante

ISL12023

Low Power RTC with Battery-Backed SRAM and Embedded Temp Compensation ±5ppm with Auto Daylight Saving

Renesas Electronics 

ISL12023

N1cO-oN8Tn8OtR8aR-cEINtECoTCOuEOMrRMMTSMeEIcLENhoNDnrDiEcwEDawDlFwSROu.iERpnPptNeLorEArstWCilC.EcDeMonEmEtSeN/IrtGsTacNt S

DATASHEET

FN6682

Low Power RTC with Battery-Backed SRAM and Embedded Temp Compensation

Rev 3.00

±5ppm with Auto Daylight Saving

December 6, 2011

The ISL12023 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.

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.

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

function records the time and date of switchover from VDD to

VBAT power, and also from VBAT to VDD power.

Applications

• Utility Meters

• POS Equipment

• Medical Devices

• Security Systems

• Vending Machines

• White Goods

• Printers and Copiers

Features

• Real Time Clock/Calendar

- Tracks Time in Hours, Minutes and Seconds

- Day of the Week, Day, Month and Year

• 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

• Customer Programmable Day Light Saving Time

• Clock Output with 15 Selectable Frequencies

• 1 Alarm

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

Day, or Month

- Single Event or Pulse Interrupt Mode

• Battery Reseal™ Function to Extend Battery Shelf Life

• Automatic Backup to Battery or Super Capacitor

- Operation to VBAT = 1.8V

- 1.0µA Battery Supply Current

• Battery Status Monitor

- 2 User Programmable Levels

• Seven Selectable Voltages for Each Level

• Power Status Brownout Monitor

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

• Oscillator Failure Detection

• Time Stamp for First VDD to VBAT, and Last VBAT to VDD

• 128 Bytes Battery-Backed User SRAM

• Separate FOUT, IRQ, and LVRST Outputs

• I2C Bus™

- 400kHz Clock Frequency

• 14 Ld TSSOP Package

• Pb-Free (RoHS Compliant)

Ordering Information

PART NUMBER

(Notes 1, 2)

PART

MARKING

VDD RANGE

(V)

TEMP RANGE

(°C)

PACKAGE

(Pb-Free)

PKG.

DWG. #

ISL12023IVZ

12023 IVZ

2.7 to 5.5

-40 to +85

14 Ld TSSOP

M14.173

NOTES:

1. Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications.

2. 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

FN6682 Rev 3.00

December 6, 2011

Page 1 of 29

Share Link: