Real Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Day, Month, and Year
Frequency Output pin
- 15 Selectable Output Frequencies
Single Alarm with Separate Interrupt pin
- 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 Cap
Power Failure Detection
On-Chip Oscillator Compensation
8 Bytes Battery-Backed User SRAM
I²C Interface
- 400kHz Data Transfer Rate
400nA Battery Supply Current
Small Package Option
- 10 Ld MSOP Package
Pb-Free Plus Anneal Available (RoHS Compliant)

ISL1220IUZ Description

The ISL1220 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, battery-backed user SRAM and separate F_OUT and IRQ outputs.

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.

ISL1220IUZ Parameters

Products Similar to ISL1220IUZ

ISL1220, ISL1220IUZ-T

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Keywords

ISL1220IUZ Data Sheet	ISL1220IUZ Spec	ISL1220IUZ Application Notes	ISL1220IUZ Distributor
ISL1220IUZ Circuit	ISL1220IUZ Reference	ISL1220IUZ PDF	ISL1220IUZ RoHS