E.g. ATtiny202-SSFR vs ATtiny202-SSNR
The datasheet tells all.
#1 This forum helps those that help themselves
#2 All grounds are not created equal
#3 How have you proved that your chip is running at xxMHz?
#4 "If you think you need floating point to solve the problem then you don't understand the problem. If you really do need floating point then you have a problem you do not understand." - Heater's ex-boss
Usually toward the very back. You need to look at the device-specific data sheet, not the family data sheet.
Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net
Buy Now tab will show. Tape and Reel or Tube packaging, 2 temperature ranges. Packaging makes no difference until you know something specific is needed (automation in assembly), temperature also makes no difference until you know it does. Pick the cheapest or the one that is in stock from your supplier.
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