Oct 21, 2011 #1 S StMark Newbie level 1 Joined Oct 21, 2011 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,286 What do the different suffixes in the 7400 range mean? Wikipedia says that an "N" means a plastic, through-hole DIP package, but what does "AN" or "B1" mean? I replaced a 74HC540AN with a 74HC540B1 and now the board doesn't run at all. I don't know if this death is a result of this change.
What do the different suffixes in the 7400 range mean? Wikipedia says that an "N" means a plastic, through-hole DIP package, but what does "AN" or "B1" mean? I replaced a 74HC540AN with a 74HC540B1 and now the board doesn't run at all. I don't know if this death is a result of this change.