Re: TI-H: Temp Sensor address instructions


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Re: TI-H: Temp Sensor address instructions



>ok so why would you want multiple chips and do you have a scematic that 
>shows how to build a multi chip device?



You might want multiple sensors to sense temperatures for the air temp 
and a beaker of boiling water for a lab expiriment, or you may have 
several devices that need to have the temp monitored.

As for the schematic. I have only done up to two chips at a time. You 
may need to add external power beyond that, because sometimes, even with 
only two chips, you may get an error reading one.

The most basic schematic simply connects the Gnd, 5v+, Data, and Clock 
lines to both chips, in parralel. For extra power, the SPinTerface could 
be used, but I don't know exactly how to go about that. I think that you 
could just connect the 5v+ to the connection between the capacitor and 
the diodes. Then cross the activation pins.

If I'm wrong, then someone correct me.  (:

Richard Piotter

e-mail: richfiles@hotmail.com

home page: <A 
HREF="http://www.geocities.com/SiliconValley/Lakes/5081/Richfiles.html">The 
Richfiles</A>




>>Yes! in the Schematic, there are 3 pins that are next to each other 
and 
>>all connect to the ground. Those are the address pins. To connect 
>>multiple chips, you need to set the address for each chip different. 
>>Here's how:
>>
>>  4  3  2  1
>> _|__|__|__|_
>>|           0|
>>|            |
>>|            |
>>|____________|
>>  |  |  |  |
>>  5  6  7  8
>>
>>            Pin
>>Address   5  6  7
>>_________________
>>0         G  G  G
>>1         G  G  X
>>2         G  X  G
>>3         G  X  X
>>4         X  G  G
>>5         X  G  X
>>6         X  X  G
>>7         X  X  X
>>
>>The X means no connection and the G means to connect it to ground.

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