Electronic – Subtle difference between ATtiny parts

attinymicrocontroller

I want to purchase 20 MHz ATtiny85 chips in SOIC-8 on a full reel from Mouser. I found these two variants:

I have studied the specifications but cannot for the life of me find the difference between the two, and I don't want to order a full reel of the wrong part if there is any difference between them. Does anyone know?

Best Answer

On page 13 of the datasheet, you can see the Order codes and what they mean.

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In this case, H and U mean the finish or plating on the pins.