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???
01/23/07 15:55
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 		 #131291 - Drilling holes with 100 mil pitch should not be...
Responding to: ???'s previous message
Hello Mike,


The smallest DIP chip in width I used is 300mils.

If at least the rows are that far apart in a jumper block, then I can use it.


Hand drilling holes which are 100 mils apart is not very difficult, have you tried it? The pcb people do it all the time, all you need is a drill (high speed steel or cardbide tipped) around 0.80mm in dia and a small high speed drilling machine, for small quantity prototype boards it should be easy, a little practice is all that is needed, you might break a few drills in the process.

If you are planning to manufacture in quantities then you can get it drilled at a pcb drilling shop.

Regards,
John.



List of 70 messages in thread
TopicAuthorDate
BUS            01/01/70 00:00      
   does not make sense, pls explain            01/01/70 00:00      
      100 mils width is too small            01/01/70 00:00      
         Use 8052.com            01/01/70 00:00      
         in one direction, in the other it is .100            01/01/70 00:00      
         Drilling holes with 100 mil pitch should not be...            01/01/70 00:00      
            None at all!            01/01/70 00:00      
            The largest drill diameter is 0.050"            01/01/70 00:00      
               It's all coming back...            01/01/70 00:00      
                  What do you mean "coming back?" It's still here!            01/01/70 00:00      
                     the rest of us regard this a trip down memory lane            01/01/70 00:00      
                        Yes, paper clips, zippers ... they're still around            01/01/70 00:00      
                           yup, slow things down            01/01/70 00:00      
               It is 0.80mm NOT 0.080"            01/01/70 00:00      
                  One's too small, the other's too large            01/01/70 00:00      
         It\'s really not too small ...            01/01/70 00:00      
         Terms; Width v Pitch            01/01/70 00:00      
   if it is all or none            01/01/70 00:00      
      I'm using a Single Sided board...            01/01/70 00:00      
         I don't understand...            01/01/70 00:00      
            yes            01/01/70 00:00      
               If you mean what I think you mean.            01/01/70 00:00      
               use an IC socket then...            01/01/70 00:00      
                  a good ides does not suffer from being repeated            01/01/70 00:00      
                     I missed that, sorry...            01/01/70 00:00      
                        what is a "component platform"?            01/01/70 00:00      
                           thanks            01/01/70 00:00      
                              here we go            01/01/70 00:00      
                                 oh now I remeber            01/01/70 00:00      
                                    they are available in 0.3" as well            01/01/70 00:00      
         nowadays, ridiculously small is REALLY small            01/01/70 00:00      
            Broken bit.            01/01/70 00:00      
   PCB Prototyping            01/01/70 00:00      
      Drilling...            01/01/70 00:00      
         great, Rob            01/01/70 00:00      
            1 sided...            01/01/70 00:00      
               you are aware, I hope            01/01/70 00:00      
                  SiLabs, etc...            01/01/70 00:00      
                     not at all            01/01/70 00:00      
                        So is the 89C51ED2            01/01/70 00:00      
                           there are PLCC sockets that spread the pins to 0.1            01/01/70 00:00      
                              Yep.            01/01/70 00:00      
                                 ok            01/01/70 00:00      
                                 you don't have a proper devboard            01/01/70 00:00      
                                    Devboard            01/01/70 00:00      
                                       do yourself a favor            01/01/70 00:00      
                                          Thanks            01/01/70 00:00      
                              There are adapter boards that make it easy            01/01/70 00:00      
                                 You can add a groundplane!            01/01/70 00:00      
                                    not just Kai            01/01/70 00:00      
                     SiLabs vs Atmel            01/01/70 00:00      
                        elaborating            01/01/70 00:00      
                           deviates            01/01/70 00:00      
                              the problem there is            01/01/70 00:00      
                                 diffs twixt SiLabs families            01/01/70 00:00      
                                    To Andy            01/01/70 00:00      
                                       LPC9xx???            01/01/70 00:00      
                                 RCAP2 vs TMR2RL            01/01/70 00:00      
                                    acronyms...            01/01/70 00:00      
                                    If that had been it            01/01/70 00:00      
                                       F120 not genuine either            01/01/70 00:00      
                                          the difference is 'addition' vs 'change'            01/01/70 00:00      
            SMT Soldering is MUCH easier than PWB drilling.            01/01/70 00:00      
               wrong address            01/01/70 00:00      
               surface mount thru-hole            01/01/70 00:00      
                  Original SMT parts were modified DIP            01/01/70 00:00      
                     True but...            01/01/70 00:00      
                        The objective wasn't to make them smaller.            01/01/70 00:00      
                           O-Who?            01/01/70 00:00      
            Just to follow up...            01/01/70 00:00      

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