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Multidrop address assignments for thermal sensors

Posted: 09 Jun 2014     Print Version  Bookmark and Share

Keywords:I2C I/O protocol  slave address  thermal applications  temperature sensors 

Traditionally, most ICs incorporating the Philips I2C I/O protocol have a fixed (factory-defined) slave address for use during communications. In many thermal applications, however, it may be desirable to utilise multiple temperature sensors, placed in different physical locations, to monitor the operating temperatures in predefined "zones" within the system. To accommodate this while minimising CPU resources allocated for communications functions, many thermal products have the added flexibility of user-defined slave addressing. This user-defined function uses an additional input pin (or pins) that allows mapping of a specific sensor to a schematically defined slave address.

In many thermal applications, it may be desired to utilise multiple temperature sensors, placed in different physical locations, to monitor the operating temperatures in predefined 'zones' within the system. To accommodate this desire, many thermal products have the added flexibility of user-defined slave addressing.

View the PDF document for more information.

Originally published by Maxim Integrated Products Inc. at www.maxim-ic.com as "Understanding Multidrop Address Assignments for Thermal Sensors".





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