Forgive my ignorance please. If I look at QFN-16 ICs, there are (at a minimum) two different pin layouts. A 4 pins per side arrangement and a 2x5 and 2x3 pin arrangement.
What is the industry standard to distinguish between these two?
I ask because parts.io lists my IC as “Package Description VQCCN, LCC16,.12SQ,20”. NXP lists it as Case 2094-01. Searches seem to show that these are manufacturer or distributor specific.
When looking for an adapter, they all just list QFN-16 (3 x 3 mm body, 0.5 mm pin pitch) which could be either pin arrangement.
Unfortunately the manufacturers rarely standardize.
Take SOT23 for instance, there are about 50+ variations on it.
Take your parts datasheet, enter the component dimensions into the PCB libraries Library Expert and produce a footprint for your CAD package. The free version should enable you to do this quickly and easily.
mattylad:
Unfortunately the manufacturers rarely standardize.
Take SOT23 for instance, there are about 50+ variations on it.
Take your parts datasheet, enter the component dimensions into the PCB libraries Library Expert and produce a footprint for your CAD package. The free version should enable you to do this quickly and easily.
Good idea. A free version will simplify the process for you. But in the datasheet some revisions may differ depending on the current version.