Why do integrated circuits have designated numbers written on their backs instead of simply having their names written?

Why do integrated circuits have designated numbers written on their backs instead of simply having… by Yash Bhardwaj

Answer by Yash Bhardwaj:

Because it's feasible to tell about the

1.Model number

2. Manufacturer

3. Logic series

4. Device

5. Output

6. Packaging

by just using some numbers and alphabets.

Example.

Manufacturer

This code normally consists of two letters and is a code normally used by a given manufacturer. SM is one used by Texas Instruments.

Temperature range

This is indicated by these two figures. 74 indicates (0°C to 70°C commercial and 54 military (-55°C to +125°C.

Logic series

This is the sub-family. 7400 for example is the basic series, but there are many others as defined above.

Device

This indicates the device function / type. For example devices with 04 are hex inverters, etc. They are the common across all sub-families.

Package code

This is the package suffix. It is necessary to refer to the manufacturers datasheets as these codes vary between manufacturers.

Hope this helps.

Why do integrated circuits have designated numbers written on their backs instead of simply having their names written?

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