On 1/30/07, roger_irwin <[EMAIL PROTECTED]> wrote: > > Does anybody know the different origins of the "xQFP's"? > > Somethimes they appear the same, but sometimes they are different. For > example, for the LPC210x I had to roll my own LQFP48 because the pitch > was different from the VQFP. > > > Does anybody know the different origins of the "xQFP's"? > > Somethimes they appear the same, but sometimes they are different. For > example, for the LPC210x I had to roll my own LQFP48 because the pitch > was different from the VQFP. >
I tried to find some rules, but it seems there simply aren't any. Eg. at http://www.ti.com/sc/docs/psheets/type/htqfp.html is a list of "HTQFP" packages. They are all of same height, but the pitch ranges from 0.4 to 0.8mm. Another list at http://www.standardics.nxp.com/packaging/package.outlines/#pqfp shows that height (of PQFP) may also differ... Regards, Adam
