ISL1208

I<sup>2</sup>C® Real Time Clock/Calendar, Low Power RTC with Battery Backed SRAM

OVERVIEW

The ISL1208 device is a low power real time clock with timing and crystal compensation, clock/calendar, power fail indicator, periodic or polled alarm, intelligent battery backup switching and 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.

KEY FEATURES

  • Real Time Clock/Calendar
  • Tracks Time in Hours, Minutes, and Seconds
  • Day of the Week, Day, Month, and Year
  • 15 Selectable Frequency Outputs
  • Single Alarm
  • Settable to the Second, Minute, Hour, Day of the Week, Day, or Month
  • Single Event or Pulse Interrupt Mode
  • Automatic Backup to Battery or Super Capacitor
  • Power Failure Detection
  • On-Chip Oscillator Compensation
  • 2 Bytes Battery-Backed User SRAM
  • I2C Interface
  • 400kHz Data Transfer Rate
  • 400nA Battery Supply Current
  • Same Pin Out as ST M41Txx and Maxim DS13xx Devices
  • Small Package Options
  • 8 Ld MSOP and SOIC Packages
  • 8 Ld TDFN Package
  • Pb-Free Available (RoHS Compliant)

PARAMETRICS

Parameters
ISL1208
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)
400
アラーム
1
水晶周波数調整
Yes
選択可能周波数出力
15
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
POR用VTRIP
Yes
IRQ_Bar
IRQ_bar/FOUT
FOUT
IRQ_bar/FOUT
RESET_bar
No
オシレータ補償 (ppm)
-94 to +140
SRAM
2 Bytes
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
1.2 µA
IRQピン
Yes
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

上記downloadには必ず下のボタンより契約内容を御確認ください。

MyRenesasボタンよりID,PWをご入力ください。