I have used AVR 169 before. It does not fit your size
requirements. One thing I DO admire about that chip is
the support from GCC. It is very good. The code output
is quite dense and minimal problems. I did not find
any problems at my end with the compiler. The floating
point subroutines are BIG so one has to be careful
with the usage. Other than that I have no issues. BTW
if you want to count cycles with the C compiler.
Forget it*The optimization IS too wild with the
output*. Drop down the assembly and you would have
control over it. 

Regards,
John



--- Xiaofan Chen <xiaofanc@gmail.com> wrote:

> I need to get an MCU with the following features.
> 
> 1) smaller than 5x5mm QFN
> 2) 12 I/O or more
> 3) 1 USART
> 4) 1 SPI to interface an external 16bit DAC
> 5) with 128B EEPROM or more
> 6) 8-bit PWM or better
> 7) low current consumption with on-board caliberated
> oscillator
> 8) 8kB or 16kB flash, 256B SRAM
> 10) cheaper than US$3 at 1k quantity
> 
> Right now I am thinking of Atmel Mega88/168 AVR. I
> want to choose
> from PIC18F, MSP430 and AVR or something similar
> with good C
> compiler support.
> 
> Regards,
> Xiaofan
> -- 
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> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
> 


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