Hi Russell,

you seem to describe the TI MSP 430 series, I personally recommend the
MSP430F1101 (only unsure abt PWM), but bigger series will have this
included.
Dev kit is US$49, after some tweaking it works.....(that's TI for you!)
I use this one and its bigger brother, MSP430F1121 in a project, and
they WORK.
TI had this as a big advertisement (banner-like) that 1K qty would be
0.99 $US, - so there you are. (Don't know if they upped them lately...)

Greets (and a warm Xmas)

Jochen Feldhaar DH6FAZ

Russell McMahon schrieb:
>
> I'm on the search again for a microcontroller for a project.
>
> Has anyone got a reference to a selector guide which covers the features of
> a wide range of avail;able processors in a single place. Everyone is happy
> (enough) to tell you what they sell but you can spend a lot of time looking
> for all reasonable alternatives.
>
> FWIW my spec is
>
> Cost sensitive - ideally <= $US1 in 10k quantity
>
> MUST have 1 channel of 5 kHz real-time PWM capability. Resolution COULD be
> as low as around 5% steps but finer would be better (say 8 bits). [5 kHz at
> 5% duty cycle is 10 uS per step so one might ALMOST do this in software with
> a suitably fast cpu but as there are several realtimish tasks a timer based
> PWM is much preferred]. A second PWM channel would be nice but is not
> essential.
>
> A2D (8 bit OK) would be extremely desirable but not strictly essential
>
> Flash would be nice but OTP ok
>
> EEROM would be nice but not essential
>
> RC clock operation desirable.
>
> Anti brownout and inbuilt power on reset desirable.
>
> Cost sensitive
>
> UART nice but not ....
>
> IIC not really needed but if it was there ...
>
> Code memory of 1K probably OK.
>
> Limited RAM needed.
>
> Cost sensitive ... :-)
>
> SOIC packaging for production. Availability of DIP for initial prototyping
> would be useful.
>
> Reasonable (ie low $ or free :-) ) priced development tools desirable.
> Assembler OK, free or cheap C etc would not be unwelcome.
>
> OTP / Flash and mask versions would be useful.
>
> Manufacturer not in Chapter 11 or any variant thereof would be nice :-)
>
> Technically responsive supplier would be useful.
>
> My feeling is that any PIC which meets the hardware spec tends to fail the
> price spec.
>
>       Russell McMahon
> _____________________________
>
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