DS1775

PRODUCT PREVIEW PRELIMINARY DS1775 SOT23-5 Digital Thermometer and Thermostat www.dalsemi.com FEATURES § Temperature measurements require no external components § Measures temperatures from –55° C to +125° C. Fahrenheit equivalent is –67° F to 257° F § Thermometer accuracy is ±2.0° C § Thermometer resolution is configurable from 9 to 12 bits (0.5° C to 0.0625° C resolution) § Thermostat settings are user definable § Data is read from/written to via a 2–wire serial interface § Wide power supply range (2.7V – 5.5V) § Software compatible with DS75 2–Wire Thermal Watchdog in thermometer mode § Space–conscious SOT23–5 package with low thermal time constant PIN ASSIGNMENT SCL GND O.S. 1 2 3 4 VDD 5 SDA DS1775R SOT23-5 PIN DESCRIPTION GND SCL SDA VDD O.S. Ground 2–Wire Serial Clock 2–Wire Serial Data Input/Output Power Supply Voltage Thermostat Output Signal Address 100 101 110 111 ORDERING INFORMATION Part Number Address DS1775R/TRL 000 DS1775R/TR1 001 DS1775R/TR2 010 DS1775R/TR3 011 * "R" denotes SOT 23-5 Package Part Number DS1775R/TR4 DS1775R/TR5 DS1775R/TR6 DS1775R/TR7 DESCRIPTION The DS1775 SOT23-5 Digital Thermometer and Thermostat provides temperature readings which indicate the temperature of the device. Thermostat settings and temperature readings are all communicated to/from the DS1775 over a simple 2–wire serial interface. No additional components are required; the device is truly a “temperature–to–digital” converter. For applications that require greater temperat...