The DS1624 consists of a digital thermometer and 256 bytes of E² memory. The thermometer provides 13-bit temperature readings which indicate the temperature of the device. The E² memory allows a user to store frequency compensation coefficients for digital correction of crystal frequency due to temperature. Any other type of information may also reside in this user space.
- Temperature measurements require no external components
- Measures temperatures from -55°C to +125°C in 0.03125°C increments. Fahrenheit equivalent is -67°F to +257°F in 0.05625°F increments
- Temperature is read as a 13-bit value (two byte transfer)
- Converts temperature to digital word in 1 second (max)
- 256 bytes of E² memory on board for storing information such as frequency compensation coefficients
- Data is read from/written via a 2-wire serial interface (open drain I/O lines)
- Applications include temperature-compensated crystal oscillators for test equipment and radio systems
