ISL12008

I<sup>2</sup>C Real Time Clock with Battery Backup Low Power RTC with Battery ReSeal™ Function

Product Status: 量産中

OVERVIEW

The ISL12008 device is a low power real time clock/calendar that is pin compatible and functionally equivalent to the ST M41T00S and Maxim DS1340 with timing and crystal compensation. The device additionally provides power-fail indicator, software alarm and intelligent battery backup.

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.

KEY FEATURES

  • Pin Compatible to ST M41T00S and Maxim DS1340
  • Functionality Equivalent to ST M41T00S and Maxim DS1340
  • Real Time Clock/Calendar
  • Tracks Time in Hours, Minutes, Seconds and Sub-seconds
  • Day of the Week, Day, Month, and Year
  • 512Hz Frequency Outputs for On-Chip Crystal Compensation
  • Software Alarm
  • Settable to the Second, Minute, Hour, Day of the Week, Day, or Month
  • Automatic Low-Drop Battery Switch for Longest Backup Life
  • Power Failure Detection
  • Battery ReSeal™ for Long Shelf Life
  • I2C Bus™
  • 400kHz Data Transfer Rate
  • 800nA Battery Supply Current
  • Small Package Option
  • 8 Ld SOIC
  • Pb-Free (RoHS Compliant)

PARAMETRICS

Parameters
ISL12008
Basic Information
Production Status
量産中
電源電圧Vcc (V) (min)
2.7
電源電圧Vcc (V) (max)
5.5
VBAT (min)
1.8 V
VBAT (max)
5.5 V
IBAT (nA)
800
アラーム
1
水晶周波数調整
Yes
選択可能周波数出力
1
CPU監視機能POR
No
CPU監視機能ウォッチドッグタイマ
No
バッテリシール
Yes
バッテリバックアップ
Yes
FOUT
FOUT
RESET_bar
No
オシレータ補償 (ppm)
-94 to +140
メモリタイプ
RAM
バス/出力インタフェース
I2C
タイムキーピング電流
1.6 µA
IRQピン
No
周波数OUTピン
Yes
タイマ
No
タンパ検出
No
リセット
No
認定レベル
Standard
バッテリ電圧範囲 (V)
1.8 to 5.5
電源電圧Vcc範囲 (V)
2.7 to 5.5
CANサンプル
YES
温度範囲
-40 to +85

ブロック図

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