Different manufacturers prepare data sheets slightly differently, but the same types of information are found in all of them. In some form, most data sheets should contain the following information:
What the device is
How this device differs from other similar ones, by this manufacturer or others
How electrical connections are made to the chip
Functionally, how the inside appears (Physical appearance may be nothing like it.)
Limits of conditions under which the device can survive. (It may only function correctly over a much smaller range of conditions.)
Limits of conditions under which the device can function correctly.
If this type of section doesn't seem to exist, look for "test conditions" throughout the datasheet. The test conditions are probably normal (i.e. recommended) operating conditions.
Parameters for use when the chip is operating within normal limits.
Examples of how the device might be hooked up in a circuit. Extremely useful.
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