• Part: DS1921L-F5X
  • Description: Thermochron iButton
  • Manufacturer: Maxim Integrated
  • Size: 391.60 KB
DS1921L-F5X Datasheet (PDF) Download
Maxim Integrated
DS1921L-F5X

Key Features

  • Digital thermometer measures temperature in 0.5°C increments (accuracy ±1.0°C)
  • Built-in real-time clock (RTC) and timer has accuracy of ±2 minutes per month from 0°C to 45°C
  • Automatically wakes up and measures tem- perature at user-programmable intervals from 1 to 255 minutes
  • Logs up to 2048 consecutive temperature measurements in protected nonvolatile (NV) memory
  • Records a long-term temperature histogram with 2.0°C resolution
  • Programmable temperature-high and tem- perature-low alarm trip points
  • Records up to 24 time stamps and durations when temperature leaves the range specified by the trip points
  • 512 bytes of general-purpose read/write NV memory
  • Typical lifetime more than 9 years
  • municates to host with a single digital signal at 14.1kbits or 125kbits per second using 1-Wire® protocol