SN74AHCT1G125-Q1: Technical difference between CAHCT1G125QDCKRQ1 and CAHCT1G125QDCKRG4Q

Part Number: SN74AHCT1G125-Q1

Tool/software:

Hi,

I cannot find the exact difference between  CAHCT1G125QDCKRQ1 and CAHCT1G125QDCKRG4Q .

We should use CAHCT1G125QDCKRQ1 (in automotive product) but we are proposed CAHCT1G125QDCKRG4Q  instead due to shortage.

Can anyone help to figure out differences?

Thank you.