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1. Describe
The ISL12022MAIBZ device is a low-power real-time clock (RTC) With embedded temperature sensor and crystal. equipment Functions include oscillator compensation, clock/calendar, Power failure and low battery monitor, power down indicator, One-time, periodic or polling alarms, smart battery backup Switch, Battery Reseal™ function and 128-byte Battery-powered user SRAM. Backup battery current consumption is less Less than 1.6µA over the entire temperature range. The equipment is provided in A 20 Ld SOIC module, including RTC and embedded 32.768kHz quartz crystal. Calibrated oscillator provides less The drift is less than ±5ppm over the entire temperature range from -40°C to +85°C Scope. RTC uses a separate register to track time, including hours, minutes, And seconds. Calendar registration to track date, month, year and Day of the week, accurate to 2099, automatically Leap year correction. Daylight saving time adjustment is done automatically, use Parameters entered by the user. Power failure and battery monitor Provide user-selectable itinerary levels. Time stamp function record The time and date of switching from VDD power to VBAT power, and Also from VBAT to VDD power supply. ISL12022MA has enhanced ESD immunity, conforms to IEC61000-4-2 standard, and provide improved resistance System leaks related to environmental humidity.
2. Feature
1. Embedded 32.768kHz quartz crystal in the package
2. 20 Ld SOIC package (for DFN version, please refer to ISL12020M)
3. calendar
4. On-chip oscillator temperature compensation
5. 10-digit digital temperature sensor output
6. 15 selectable frequency outputs
7. Alarm interrupt or 15 selectable frequency outputs
8. Automatic backup to battery or super capacitor
9. VDD and battery status monitor
10. Battery Reseal™ function can extend battery shelf life
11. Power status power failure monitor
12. Timestamp of battery switch
13. 128 bytes battery-powered user SRAM
14. 1.6µA maximum battery current
15. I2C Bus™
16. RoHS compliant
3. Application
1. Utility meters
2. POS equipment
3. Printers and copiers
4. Digital camera
4. Pin Configuration
