Remaining life expectancy of NXP MCUs

[lpcware]

Content originally posted in LPCWare by djrose on Wed Nov 18 08:22:57 MST 2015
Can anybody direct me to somewhere that gives the life expectancy of NXP parts?

I'm specifically looking for detail on an LPC3250. We've used it for a number of years in an existing product and are now wondering whether it can be considered for a new design.

Thanks.

[lpcware]

Content originally posted in LPCWare by djrose on Fri Nov 20 05:14:24 MST 2015
Many thanks for those replies.

The product longevity is exactly the information I was hoping to find.

I was wanting to go to a Cortex and have been investigating current parts.  I already use it on some smaller new projects.  Until recently I was thinking of following up the LPC4357, but for my purposes (where I would like to execute large code modules from SDRAM), my testing suggests that the performance is not going to be as good as I want. Certainly not as good as I'm seeing on the LPC3250.  I've already proven that the bulk of my existing codebase just requires a recompile to run on the Cortex - Very nice  :)

The research for the future goes on, but this immediate requirement is ... well ... immediate. Hence my question.

[lpcware]

Content originally posted in LPCWare by MikeSimmonds on Thu Nov 19 15:33:29 MST 2015
Cortex M3 cores have a significant technical advantage over ARM7/ARM9 cores.

I think the offered parts can have a higher clock speed, code density is about 30% better
(according to NXP white paper), interrupt handling is much improved.

We went from Atmel SAM9260 [Arm9] to NXP LPC1778 [Cortex-M3]
(needed external bus interface for SRAM and SDRAM, no LCD).

Obviously there may well be change over pains; but the life expectancy is much better.
And (it seems to me) NXP are focussing on Cortex for new parts.
"C" code suffered very little change.

I would definately start with the NXP white papers, and see ARM-INFO Cortex M3 Tech Ref Man,
ArmV7M Application arcitecture manual, and Joseph Yiu's "The Definitive Guide to the ARM CORTEX-M3" 2nd Ed.

A quote from the forward of that book

---

Quote:
The result of this combination, the ARM Cortex™-M3, represents an exciting development to the
original ARM architecture. The device blends the best features from the 32-bit ARM architecture with
the highly successful Thumb-2  instruction set design while adding several new capabilities. Despite
these changes, the Cortex-M3 retains a simpliied programmer’s model that will be easily recognizable
to all existing ARM aicionados.

---

Regards, Mike.

[lpcware]

Content originally posted in LPCWare by hparracho on Wed Nov 18 08:52:35 MST 2015
You can find it here:

http://www.nxp.com/techzones/microcontrollers-resources/product-longevity.html