# Component ID. onsemi 74VHC164MTCX?

**URL:** <https://forum.digikey.com/t/component-id-onsemi-74vhc164mtcx/45891>\
**Category:** Integrated Circuits (ICs)\
**Tags:** logic, part-marking, onsemi\
**Created:** [October 23, 2024, 3:35pm UTC](https://forum.digikey.com/t/component-id-onsemi-74vhc164mtcx/45891 "2024-10-23T15:35:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![slycer2002](https://avatars.discourse-cdn.com/v4/letter/s/8e7dd6/32.png) [@slycer2002](https://forum.digikey.com/u/slycer2002)\
**Post date:** [October 23, 2024, 3:35pm UTC](https://forum.digikey.com/t/component-id-onsemi-74vhc164mtcx/45891/1 "2024-10-23T15:35:09Z")

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I received several of these parts today from a tech asking me to verify if they are onsemi 74VHC164MTCX. Looking at the surface markings, they appear to show “YAXJG V164”.

 ![100_1071](https://global.discourse-cdn.com/digikey/original/3X/a/4/a42423119545b385b20a5fa0513a6799a48b86b2.jpeg)

This doesn’t really seem to match what the datasheet for the 74VHC164MTCX shows.

 ![Capture](https://global.discourse-cdn.com/digikey/original/3X/b/8/b8630824755bf8103a442e52afcf2ff7814ac1fc.png)

Just wondering if anybody can provide some insight on if this part is actually the 74VHC164MTCX.  
Thanks in advance!

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**Author:** ![David\_1768](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/david_1768/32/9762_2.png) [@David\_1768](https://forum.digikey.com/u/David_1768)\
**Post date:** [October 23, 2024, 5:07pm UTC](https://forum.digikey.com/t/component-id-onsemi-74vhc164mtcx/45891/2 "2024-10-23T17:07:58Z")

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Hello slycer2002,

The datasheet for [74VHC164MTCX](https://www.digikey.com/en/products/detail/onsemi/74VHC164MTCX/976273), says the marking should be VHC 164. So unless the part went through a part marking change, I would say that is not the part.

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<div class="post-metadata">

**Author:** ![slycer2002](https://avatars.discourse-cdn.com/v4/letter/s/8e7dd6/32.png) [@slycer2002](https://forum.digikey.com/u/slycer2002)\
**Post date:** [November 20, 2024, 5:34pm UTC](https://forum.digikey.com/t/component-id-onsemi-74vhc164mtcx/45891/3 "2024-11-20T17:34:32Z")

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Sorry for the delay in the reply. That was pretty much what I was thinking, as well.  
I still have not managed to figure out what the actual part is, so if anybody has any idea I would be greatly appreciative! Thanks in advance!