The ISL12020M device is a low power real time clock (RTC) with an embedded temperature sensor and crystal. Device functions include 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. The device is offered in a 20 Ld DFN module that contains the RTC and an embedded 32.768kHz quartz crystal. The calibrated oscillator provides less than ±5ppm drift over the full -40°C to +85°C temperature range.
Features
⢠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-Busâ¢
Applications*(see page 31)
⢠Utility Meters
⢠POS Equipment
⢠Printers and Copiers
⢠Digital Cameras
|