"solarwind" wrote:
> Hey all, I think I found the perfect chip for my calculator project.
>
> It's a 16 bit PIC 24 HJ 128 GP 202 (or 502 with ECAN). 128K flash, 8K
> RAM, 28 pin SPDIP. Operates at 3.0 to 3.6 V. What I love about it is
> that the Microchip C30 compiler supports long doubles (64 bit)
> natively. I'm going to experiment with the compiler/simulator for this
> chip and take a look at this datasheet to make sure everything's the
> way I want it. I just hope it consumes very little power.
>
> Has anyone used this chip or similar chips?

Yeah, a PIC24HJ504, in this device:

http://www.ecusim.com

> How are they?

They're OK.


> Do you have
> any opinion/advice?

It's a nice chip, plenty of ROM and RAM, and C30 IMO is much nicer than C18. 
What do you want to know, specifically?

Vitaliy 

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