CD74HC4050: Need internal input and output structure

Hi expert,

My customer hope to have the internal structure to better analysis the failure they meet.

I can see CD4050 have a internal structure:

and I each find the structure for HC type from toshiba: 

https://toshiba.semicon-storage.com/info/application_note_en_20210131_AKX00107.pdf?did=63521

Is it the same structure for TI CD74HC4050?

Could you kindly give me the equivalent circuit for better explanation on the failure?

BR

Emma