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Dallas
DS1820 One Wire Digital Thermometer
Photograph

Features
Unique 1-wire interface requires only one port pin for communication
Each device has a unique 64-bit serial code stored in an on-board ROM
Multi-drop capability simplifies distributed temperature sensing applications
Requires no External Components
2-wire Serial Interface
9-bit Thermometer Resolution
Converts Temperature in 750 ms (max.)
Pin Layout

Pin Description
Pin Number | Description |
---|---|
1 | GND - Ground |
2 | DQ - Data In/Out |
3 | Vdd - Optional Vdd |
Dimensional Drawing


Technical Data
Datasheet
Maxim Integrated Website - Datasheet for DS1820 |
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Application Notes