DS1621 - Digital Thermometer and Thermostat

DS1621 - Digital Thermometer and Thermostat info

About the Product

DS1621 - Digital Thermometer and Thermostat provides 9-bit temperature readings, which indicate the temperature of the device. The thermal alarm output, TOUT, is active when the temperature of the device exceeds a user-defined temperature TH. The output remains active until the temperature drops below user defined temperature TL, allowing for any hysteresis necessary.

User-defined temperature settings are stored in nonvolatile memory so parts may be programmed prior to insertion in a system. Temperature settings and temperature readings are all communicated to/from DS1621 - Digital Thermometer and Thermostat over a simple 2-wire serial interface.

Product Description

• Temperature measurements require no external components
• Measures temperatures from -55°C to +125°C in 0.5°C increments. Fahrenheit equivalent is -67°F to 257°F in 0.9°F increments
• Temperature is read as a 9-bit value (2-byte transfer)
• Wide power supply range (2.7V to 5.5V)
• Converts temperature to digital word in less than 1 second

Documents

Datasheet