AVR ATmega -- 16MHz at 3.3V?

Operation beside the specifications may or may not work. Operation is NOT guaranteed over the full temperature AND supply voltage range.

Rene

I understand that. Which is why I am looking for a chip that is

Rene Tschaggelar wrote:

Clones ? Lookalikes ? compatibles ? Second-source ? I fear there are non of the above. I heard of an AVR core for FPGA though, but this means none of the analog IO.

Rene

snipped-for-privacy@gmail.com wrote:

Abdul,

is it USB HID that you are thinking of?

I read about that topic too and found it most interesting. However, when i found out as you that there is no AVR with these specs i thought t stay save and use the FTDI stuff.

Regards Ulrich Bangert

schrieb im Newsbeitrag news: snipped-for-privacy@i42g2000cwa.googlegroups.com...

Ulrich,

I was looking for a plain old ATmega running at 16MHz at 3.3V. The reason being I want to interface it to a 3.3V chip. Having a 3.3V AVR will help me avoid the voltage shifter chip.

Regards, Abdul

Ulrich Bangert wrote:

Abdul

The ATmega48/88/168 is spec'ed to 10 MHz @ 2.7 V and 20 MHz @ 4.5 V.

The datasheet says the freq/volt ratio is linear between 2.7 and 4.5V.

This would give you 13.3 MHz @ 3.3 V, or 16 MHz @ 3.8 V.

Tom

From time to time I really wish there was a faster AVR out there. Nothing much changing in the AVR speed region for years.

SioL

Look at the Philips LPC ARM parts - similar pricing, 70MHz at 3.3v...

Indeed, but the switch might be painfull, don't have time for all that yet.

SioL