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Product Variant Information section
Product Specification Section
Pricing Section

Stock: 487

On Order: 0
Factory Stock:Factory Stock: 0
Factory Lead Time: N/A
Minimum Order: 1
Multiple Of: 1
Quantity Web Price
1 $4.36
106 $3.62
159 $3.56
212 $3.52
265+ $3.49


Attributes Table
Date Format DW:DM:M:Y
Time Format HH:MM:SS
Interface I2C
Non-Volatile Memory Size 128B
Supply Voltage-Nom 2.7V to 5.5V
Temperature Grade Industrial
Operating Temp Range -40°C to +85°C
Storage Temperature Range -40°C to +85°C
Features and Applications

The ISL12020MIRZ is a low power real time clock with battery backed SRAM and auto daylight saving feature, available in surface mount DFN-20 package.

This device includes oscillator compensation, clock/calendar, power fail and low battery monitors, brownout indicator, one-time, periodic or polled alarms, intelligent battery backup switching, Battery Reseal™ function and 128 bytes of battery-backed user SRAM.


  • Embedded 32.768kHz Quartz Crystal in the Package
  • 20 Ld DFN Package (for SOIC version, refer to the ISL12022M)
  • Calendar
  • On-chip Oscillator Temperature Compensation
  • 10-bit Digital Temperature Sensor Output
  • 15 Selectable Frequency Outputs
  • Interrupt for Alarm or 15 Selectable Frequency Outputs
  • Automatic Backup to Battery or Supercapacitor
  • VDD and Battery Status Monitors
  • Battery Reseal™ Function to Extend Battery Shelf Life
  • Power Status Brownout Monitor
  • Time Stamp for Battery Switchover
  • 128 Bytes Battery-Backed User SRAM
  • I2C-Bus
  • RoHS Compliant


  • Utility Meters
  • POS Equipment
  • Printers and Copiers
  • Digital Cameras