The more I research this, the bigger my "one sentence" reply gets. What I had intended to say was that I make such a spreadsheet as part of my normal project procedure. The purpose is to organize where things are, but also to choose the function of each pin, note if I have to set the TRIS property on startup, and even give it a name that I'm going to use in firmware. As a side effect, it forces me to look at the schematic and ensure I know what the purpose of each and every signal is. Early on, I would just choose the appropriate function, so for GPIO it would be RA4 or RB0, and for peripherals it might be AN0, SDA, or TXD. Nowadays I capture the complete name and then just add another column for the way I am using it. This full name stuff can get rather out of hand on a PIC32: PGED1/PMA6/AN0/VREF+/CVREF+/CN2/RB0. My "use" column might say RB0. The reason for mentioning the above is that I would guess that a lot of us do something like this as a matter of course (Nicola may have proven that already) so to get a list like that you may just need to ask. If we happen to have done that chip, we can share. The reason for this reply growing in size, is that I took a look at the PIC16F716 (recently posted, so sort of a random sample), and...lo and behold, right there on page 2, under the pinout, is the very spreadsheet you were requesting! So, there is some (albeit random) hope. Since... I then opened the datasheet for your PIC16F628, and searched every instance of RA5 (as an example) and no, there is absolutely no association of pins with pin numbers in that document other than the untranslatable pin diagram. Most users of pdf files already know what you have found: Due to the markup abilities, the text doesn't have to be entered in any particular order. Sighted users in need of entertainment are invited to go to the pinout of the 16F716 and attempt to highlight a few of the signals down the right side. Granted, the text-based charts can multiply if you happen to offer your part in multiple packages. But, I don't see anyone trying to keep the datasheets small :) Further research would investigate how many datasheets feature the "spreadsheet" and whether this seems to be time-related, a policy, or random luck. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .