40+ MIPS low cost MCU

On 19 d=E9c, 13:16, Antti <Antti.Luk...@googlemail.com> wrote:
> Hi
>
> I am looking for simple cheap thumb MCU requirements
>
> 1 40+ MIPS
> 2 16 + IO pins
> 3 single cycle GPIO port
> 4 16+ KB flash (32k if mcu is 32 bit one)
> 5 optionally FS USB device
> 6 preffered onchip high speed oscillator
>
> low cost < 2.0 usd (little more if usb is present)
>


40 "mips" depend of the definition of "Mips"
With full speed USB, the following Freescale devices can fit your
needs at 3-4 USD:

8 bits microcontrolleur : MC9S08JM60
32 bits microcontrolleur : MCF52212

Consider also the cost of the developpement tools (IDE, Debugger),
very low for freescale devices

thierry

Antti wrote:
> Hi
> 
> I am looking for simple cheap thumb MCU requirements
> 
> 1 40+ MIPS
> 2 16 + IO pins
> 3 single cycle GPIO port
> 4 16+ KB flash (32k if mcu is 32 bit one)
> 5 optionally FS USB device
> 6 preffered onchip high speed oscillator
> 
> low cost < 2.0 usd (little more if usb is present)
> 
> SAM7 have slow GPIO
> the microchips new MIPS based one, dont have pricing and gpio speed
> info
> 
> any chip that fits the profile?
> 
> Antti would be real glad for any hints
> 

The Luminary LM3S600-IQN50 is a good candidate: 32K single cycle Flash, 
  50MHz core, max 28 GPIOs. Only the internal high-speed oscillator is 
missing. Suggested resale is USD 2.01 @ 1K pieces.

The advantage of Luminary is that their core is really running at 50MHz, 
  while executing from Flash. No wait states necessary. Also, the 
Luminary parts are all available in production quantities, and have even 
more SRAM than their ST counterparts. Also no multiplexing of 
peripherals: all peripherals have their own pins (although muxed with 
GPIOs).

Mark

On Dec 19, 12:16 pm, steve <bungalow_st...@yahoo.com> wrote:

> 18Mhz GPIO is running from FLASH at 72Mhz, 2 wait states, maybe run
> your code from zero wait state ram

You shouldn't see the wait states because of the caching (I don't
remember what they call it, but it is a cache in effect). You
definitely do NOT want to run out of RAM - the STM32 is not optimized
for this and the speed is much slower. But it runs very nice from
flash.

Eric

> I am looking for simple cheap thumb MCU requirements
>
> 1 40+ MIPS
> 2 16 + IO pins
> 3 single cycle GPIO port
> 4 16+ KB flash (32k if mcu is 32 bit one)
> 5 optionally FS USB device
> 6 preffered onchip high speed oscillator
>
> low cost < 2.0 usd (little more if usb is present)
>
> SAM7 have slow GPIO
> the microchips new MIPS based one, dont have pricing and gpio speed
> info
>
> any chip that fits the profile?
>
> Antti would be real glad for any hints
>

Production parts of the AVR32 AT32uC3B064 should have
60 MHz operation and 60 MHz I/O toggle.
Should be around 75 MIPS.
28 I/O pins in the 48 pin package.
Smallest devices is 64 kB flash/16 kB SRAM which
    will of course affect price.
FS USB Device in 48 pin package, FS USB OTG in 64 pin package


-- 
Best Regards,
Ulf Samuelsson
This is intended to be my personal opinion which may,
or may not be shared by my employer Atmel Nordic AB 

On 20 Dez., 01:49, "Ulf Samuelsson" <u...@a-t-m-e-l.com> wrote:
> > I am looking for simple cheap thumb MCU requirements
>
> > 1 40+ MIPS
> > 2 16 + IO pins
> > 3 single cycle GPIO port
> > 4 16+ KB flash (32k if mcu is 32 bit one)
> > 5 optionally FS USB device
> > 6 preffered onchip high speed oscillator
>
> > low cost < 2.0 usd (little more if usb is present)
>
> > SAM7 have slow GPIO
> > the microchips new MIPS based one, dont have pricing and gpio speed
> > info
>
> > any chip that fits the profile?
>
> > Antti would be real glad for any hints
>
> Production parts of the AVR32 AT32uC3B064 should have
> 60 MHz operation and 60 MHz I/O toggle.
> Should be around 75 MIPS.
> 28 I/O pins in the 48 pin package.
> Smallest devices is 64 kB flash/16 kB SRAM which
> =A0 =A0 will of course affect price.
> FS USB Device in 48 pin package, FS USB OTG in 64 pin package
>
> --
> Best Regards,
> Ulf Samuelsson
> This is intended to be my personal opinion which may,
> or may not be shared by my employer Atmel Nordic AB- Zitierten Text ausble=
nden -
>
> - Zitierten Text anzeigen -

Hi

thanks again to all for suggestions

I have some experience with luminary, but there are 3 missing things
- no onchip osc
- no option with usb
- no qfn packages

the AVR32 with 60mhz GPIO access is truly nice, but need pricing to be
good as well

for the moment the STM32 looks like its getting selected

Antti

On Dec 26, 12:19 pm, Antti <Antti.Luk...@googlemail.com> wrote:
> On 20 Dez., 01:49, "Ulf Samuelsson" <u...@a-t-m-e-l.com> wrote:
>
>
>
> > > I am looking for simple cheap thumb MCU requirements
>
> > > 1 40+ MIPS
> > > 2 16 + IO pins
> > > 3 single cycle GPIO port
> > > 4 16+ KB flash (32k if mcu is 32 bit one)
> > > 5 optionally FS USB device
> > > 6 preffered onchip high speed oscillator
>
> > > low cost < 2.0 usd (little more if usb is present)
>
> > > SAM7 have slow GPIO
> > > the microchips new MIPS based one, dont have pricing and gpio speed
> > > info
>
> > > any chip that fits the profile?
>
> > > Antti would be real glad for any hints
>
> > Production parts of the AVR32 AT32uC3B064 should have
> > 60 MHz operation and 60 MHz I/O toggle.
> > Should be around 75 MIPS.
> > 28 I/O pins in the 48 pin package.
> > Smallest devices is 64 kB flash/16 kB SRAM which
> >     will of course affect price.
> > FS USB Device in 48 pin package, FS USB OTG in 64 pin package
>
> > --
> > Best Regards,
> > Ulf Samuelsson
> > This is intended to be my personal opinion which may,
> > or may not be shared by my employer Atmel Nordic AB- Zitierten Text ausblenden -
>
> > - Zitierten Text anzeigen -
>
> Hi
>
> thanks again to all for suggestions
>
> I have some experience with luminary, but there are 3 missing things
> - no onchip osc
> - no option with usb
> - no qfn packages
>
> the AVR32 with 60mhz GPIO access is truly nice, but need pricing to be
> good as well
>
> for the moment the STM32 looks like its getting selected
>
> Antti

Nobody listed the LPC2103 yet, definitely fits your bill, is lower
cost than the STM32 and more mature. I admit, the STM32 is more sexy
but you get a lot of performance out of the LPC2103 as well and it has
the fast I/O feature which offers single cycle I/O.
At Digikey the 2103 is approx. 10% lower cost than the smallest STM32.
May be an additional advantage, the LPC2102 could fit your
requirements as well and is another 10% less. Drop-in compatible to
the LPC2103.

Besides the NXP website, you can also find information on the LPC2000
devices on this web site http://www.lpc2000.com/

Robert

Robert