Hi Ian, I understand your point but I meant that 3 1 2 was the way you count the pins and it also showed the direction. I thought we were talking in general becasue 1 2 3 can be also 2 1 3
What function will be attached to these pins depends on the component and it can be a letter or a number as you wish. Mira --- Ian Wilson <[EMAIL PROTECTED]> wrote: > On 12:03 PM 16/07/2004, Mira said: > >Dennis, > > > >The pin numbering can only be 1 2 3. > > Mira, > In Protel, pin numbers do not have to be numbers, > they can be letters. So > you can use E,B,C for numbers if you want. If you > have very commonly used > parts making a matching set of Sch and footprints > with matching pin numbers > (using letters for both if that is better for you) > makes good sense. One > less thing to check. The only downside to this is > that you then have > multiple footprints to manage if you ever decided to > change you SOT-23 layout. > > The pin names > >might be 1 2 3 or E B C. > >I haven't seen transistors with different pinout > but > > There sure are/were transistors, in SOT23, with > different pinouts. I have > not seen them recently but you used to be able to > buy reversed pinout > versions of common transistors from Philips. May > well be obsolete now. > > Ian > > > > > * * * * * * * * * * * * * * * * * * * * * * * * * * > * * * * > * To post a message: > mailto:[EMAIL PROTECTED] > * > * To leave this list visit: > * http://www.techservinc.com/protelusers/leave.html > * > * Contact the list manager: > * mailto:[EMAIL PROTECTED] > * > * Forum Guidelines Rules: > * > http://www.techservinc.com/protelusers/forumrules.html > * > * Browse or Search previous postings: > * > http://www.mail-archive.com/[EMAIL PROTECTED] > * * * * * * * * * * * * * * * * * * * * * * * * * * > * * * * > __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
