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SN74LXC8T245-Q1: Part differences & use cases

Part Number: SN74LXC8T245-Q1
Other Parts Discussed in Thread: SN74AXC8T245, SN74LXC8T245

Hi,

I have a customer that's looking to replace the SN74AXC8T245. I want to recommended the SN74LXC8T245-Q1, but I'm unsure of a few key parameters. Is there a reason that the VQFN 24 pin devices have CAX/CLX rather than SN74 in front? Also, Is that just the automotive qualified parts, or is there some other significant difference? What are the differences between the AX and LX parts?