4 ms·
No I haven't, but I've failed to convince you, it seems. It does make a difference because the chip designer doesn't know or doesn't care how the chip is going
by bnegreve 6y ago
No I haven't, but I've failed to convince you, it seems.
It does make a difference because the chip designer doesn't know or doesn't care how the chip is going to be packaged and where the pins are going to be placed on the package.
With the standard numbering, two consecutive pins are always placed next to eachother no matter the package, and the chip designer can use this information to optimize the placement of related pins.
This is not true with the alternative numbering "by column", where pin 4 and 5 are close on most packages, but far away on a DIP 8 package.