ISL1208IB8Z Datasheet PDF - Intersil

The ISL1208IB8Z 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, 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.

● Real time clock/calendar

● 15 Selectable frequency outputs

● Single alarm

● Automatic backup to battery or super capacitor

● Power failure detection

● On-chip oscillator compensation

● 2-byte Battery-backed user SRAM

● 400nA Battery supply current