Difference between 74LVC1G126DBVRE4 and SN74LVC1G126DBVR

John Porter1

My customer has a question regarding the two part numbers listed in the subject line. I can find both part numbers in the datasheet, and they appear to be the same package and pin-out. However, I cannot find anything in the datasheet or on the web that explains what the "E4" in the part number means.

Can you please verify that these two parts are the same part, or explain what the E4 in the part number means.

Thanks,

John Porter

Email from the customer:

In the TI data sheet for the tristate non inverting bus buffer 74LVC1G126, the part number is as below:

SN74LVC1G126DBVRE4

However Digikey/Mouser recognizes the part only if the last two letters, "E4" are removed.

over 11 years ago

0 C. Ryan Land over 11 years ago

TI__Genius 9860 points

Hi John,

Yes, the two part numbers are the same and you will be fine ordering the one without the E4 designator.

The E4 refers to the metals in the lead frame finish. You can read more about it here: http://focus.ti.com/quality/docs/gencontent.tsp?templateId=5909&navigationId=11753&contentId=5055

-Ryan

0 LeonardEllis over 11 years ago

TI__Guru 71526 points

John,

E4 was used during the lead-free/green conversion period from non-green to pb-free to green. If you look at the Quality section on the Product Folder page, click on the View link for the part number and Details, will take you to the Quality Manual. Here's a shortcut: http://focus.ti.com/quality/docs/gencontent.tsp?templateId=5909&navigationId=11753&contentId=5055&keyMatch=e4

Devices are now green, designated G4, so distributors most likely no longer recognize the E4 transition devices as they most likely have been used up.

~Leonard

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Difference between 74LVC1G126DBVRE4 and SN74LVC1G126DBVR