What is the difference between TS914AIYDT and TS914AIDT?

[yfuku.1]

There was a description about screening in the datasheet.

Are there any differences in electrical characteristics and materials?

Is it the same IC with only a difference in test coverage?

[Uwe Bonnes]

Have a look at the datasheet, Section 6 Ordering information. The letter Y indicates "automotive grade level"