Maxim Integrated DS1921H
High-Resolution Thermochron iButton Devices
| Part No. | DS1921H |
|---|---|
| Datasheet | DS1921H Download |
| Manufacturer |  Maxim Integrated |
| Description | High-Resolution Thermochron iButton Devices |
| Buy | Stock & Price |
FEATURES
● Digital thermometer measures temperature in 1/8°C increments with ±1°C accuracy● Built-in real-time clock (RTC) and timer has accuracy of ±2 minutes per month from 0°C to +45°C
● Water resistant or waterproof if placed inside DS9107 iButton® capsule (Exceeds Water Resistant 3 ATM requirements)
● Automatically wakes up and measures temperature at user-programmable intervals from 1 to 255 minutes
● Logs consecutive temperature measurements in 2KB of datalog memory
● Records a long-term temperature histogram with 1/2°C resolution
● Programmable temperature-high and temperature-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 battery-backed SRAM
● Communicates to host with a single digital signal at 15.4kbits or 125kbits per second using 1-Wire® protocol
● Fixed range:
