Difference between Delfino and enhanced Delfino processor

Rohit Baranwal

Hi, I am trying to design a board around the F28335 MCU. I need a part with -40 to 125 C operating temperature range. I saw these parts on digikey:

TMS320F28335ZJZQ

SM320F28335GJZMEP

The latter is described as enhanced Delfino. Is there a difference between these parts? Can they be interchanged on a pcb that was designed around a TMS320F28335ZJZQ? Both are 176 BGA, however, the first one is ZJZ BGA, while the second is GJZ BGA. Please help.

over 9 years ago

0 Richard Poley over 9 years ago

TI__Mastermind 27200 points

Rohit,

The part number ending "EP" is an Enhanced Plastic package developed by the high reliability group in TI. Typically these are used in military and aerospace applications, or wherever high reliability is critical. The parts are similar, but the additional testing of the EP part affects the price significantly, as you can see in the Digikey web pages.

Both parts are available in -40 to +125 deg.C temperature ranges. The letter after the package identifier indicates this:

In the first case (ZJZ) the 'Q' indicates the part conforms to the automotive Q100 standard for semiconductors. Again, there is a price adder for this. You could also choose a ZJZS part, which has the same temperature range, but without Q100. The price will be a little lower.

In the second case, (GJZ), the 'M' indicates we have a +55 to +125 deg.C part. Again, an 'S' suffix part would probably be sufficient for you, but that is shown as "preview only" in the datasheet so I'm not sure about availability. There is a separate forum for high reliability enquiries.

The difference between the packages is that ZJZ is lead-free, whereas GJZ is not. Otherwise they are the same.

All this is in the TI datasheets for these parts:

http://www.ti.com/lit/ds/symlink/tms320f28335.pdf

http://www.ti.com/lit/ds/symlink/sm320f28335-ep.pdf

I hope this helps.

Regards,

Richard