DATASHEET
ISL1208
I2C Real Time Clock/Calendar, Low Power RTC with Battery Backed SRAM
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. FN8085
Rev 8.00
September 12, 2008 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 Pinout Power Failure Detection ISL1208
(8 LD MSOP, SOIC)
TOP VIEW On-Chip Oscillator Compensation 2 Bytes Battery-Backed User SRAM X1 1 8 VDD X2 2 7 IRQ/FOUT VBAT 3 6 SCL I2C Interface
-400kHz Data Transfer Rate GND 4 5 SDA 400nA Battery Supply Current Same Pin Out as ST M41Txx and Maxim DS13xx Devices ISL1208 …
