DS1775
Pin Configuration
Digital Thermometer and Thermostat in SOT23
TOP VIEW
+
SCL 1
DS1775
GND 2
5 SDA
O.S. 3
4 VDD
SOT-23
GND GROUND
SCL 2-WIRE SERIAL CLOCK
SDA 2-WIRE SERIAL DATA INPUT/OUTPUT
VDD POWER-SUPPLY VOLTAGE
O.S. THERMOSTAT OUTPUT SIGNAL
Pin Description
PIN
NAME
1
SCL
2
GND
3
O.S.
4
VDD
5
SDA
FUNCTION
Clock Input/Output for 2-Wire Serial Communication Port. This input should be tied to GND for
stand-alone thermostat operation.
Ground
Thermostat Output. Open-drain output becomes active when temperature exceeds TOS.
Device configuration defines means to clear overtemperature state.
Supply Voltage 2.7V to 5.5V Input Power Pin
Data Input/Output for 2-Wire Serial Communication Port. In the stand-alone thermostat mode,
this input selects hysteresis.
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