I've got some TLC5940 PDIP package ICs coming in the mail in a couple weeks or so, and in the meantime I'm designing a couple boards for them.
I'm trying to figure out if the TLC is short enough that I can stack another PCB on top using some headers, or if it's higher then a standard .1" header, but the datasheets aren't shedding any light on it.
The datasheet contains the dimensions of the 2 surface mount packages, but their missing the dimensions for the DIP package o.O
Link to the datasheet: http://www.ti.com/lit/ds/symlink/tlc5940.pdf
If anyone could shed some light on how high the TLC5940 is, that would be awesome!
Best Answer
All information on the PDIP NT package seems to have disappeared from TI's website. That package, and the PDIP version of the TLC5940 have been obsolete for years. It's no longer even mentioned on their website, and the latest data sheet, the one you link to, doesn't have it in the ordering information either. It's 2015, DIP is dying a slow death.
Based on @ThePhoton's link, you can see that the max height for a DIP, metal or plastic, is 4.57 MM. Most are lower though, 4 MM max. 0.1" headers come in various heights, but 0.1" is 2.54 MM as a reference. Use 4.57 MM as your reference height for the DIP when designing your stacking board height.Alternatively, just use some calipers to measure the package once they arrive.Found an older version with the DIP data intact. Data sheet from 2005. It's a quite large 0.2"/5.08mm body.