Part Number: TMS320F2809
Other Parts Discussed in Thread: TMS320F2808
Hello,
My PCB assembler is having a hard time finding parts (like everybody else) and I was looking for pin compatible alternates to the F2809.
My assembler has a quantity of the F2809 parts (LQFP 100 14mm x 14mm package) used on a board with two applications. One application requires less flash/ram. To extend the number of boards we can make I was looking for a pin compatible option to the F2809 where I would not need to redesign the board.
The easy answer I think is the F2808. The F2808 is in the same family datasheet as the F2809. The smaller F280x options are too small unless I cut out features which would make me get marketing involved. I did some searching and the only issue I found to keep in mind was ADC clock of the F2809 is 2x of F2808 so if I downgrade I would need to look at that. I would appreciate any experience or notes anybody had on moving a project from the 2809 to the 2808. Even a "yes, it possible, not a big deal" to confirm the approach would be helpful. I have already purchased a TMDSCNCD2808 TMS320F2808 controlCARD to prove out this effort. (My embedded links don't seem to work. This is the post about the F2809/F2808 with the 2x ADC clock: e2e.ti.com/.../difference-between-f2808-and-f2809 )
Also it looks like the F28044 is pin compatible to the F2809. The eval board listed on the F28044 product page has a F2808 on it (TMS320F2808 controlCARD) which to me is a good indication the parts are compatible. Can anybody confirm the F28044 is pin compatible to the F2808/F2809? Any issue to watch out for when migrating?
Also if there were any other pin compatible parts to the F2809 with at least the ram/flash of the 2808 i missed I would appreciate any options out there. If their was a TI resource (besides generic searching the forums/product pages) that was available that would be helpful.
Thanks for your time,
Bill
