PDA

View Full Version : Atmel's New AVR - 'XMega' Series



debu
04-18-2008, 09:36 AM
I don't know if many of you are aware of this, early last month, Atmel released a new series of 8/16-bit micro controllers which they call the AVR - XMega series.

These are based on the old 8-bit avr's, except they have 16-bit internal busses. So they use the same instuction sets, and pipeline to get 2 times the output. That is 32MIPS in 32MHz!!! They've even incresed the number of onboard perepherals to twice, and introduced new perepheral (DAC, Cryptography etc.) on ALL their chips. Phew!! :)

I guess the really cool part in these uC's are the new "Even Based" core. The uC can handle 8 events simultaneously (Event are what used to be called "Interrupts". Except, older uC's could handle only 1 interrupt at one time). So Imagine being able to run 8 events simultaneously, without making any kind of timer-interrupt or RT-Kernel or RTOS based code.

Read More:
http://www.atmel.com/products/AVR/default_xmega.asp
http://embedded-system.net/atmel-avr-xmega-microcontrollers.html


Regards,

Debu :)

superchiku
04-18-2008, 01:13 PM
it is a cool thing hope they come to india as soon as possible..

MohitM
04-18-2008, 10:11 PM
Every thing looks great, till you read what packages they are sold in... It gets tough for a hobbyist to use TQFP at home!!!

superchiku
04-18-2008, 10:48 PM
not DIP how the hell did they think about doing that , is there any chance for DIP packing??

MohitM
04-19-2008, 08:38 AM
not DIP how the hell did they think about doing that , is there any chance for DIP packing??
No. Manufacturers are moving away from DIP and going towards smaller packaging. It also makes economic sense... SMT is cheaper to manufacture especially if the product is in volumes.

debu
04-19-2008, 10:36 AM
Quite Right. DIP packages are getting more and more difficult to find in modern devices. But break-out boards are getting easier to find. They cost Rs. 15 for a 44/64/100 -TQFP/QFN board (in Lajpat Rai, Delhi).
Anyways its time, hobbyists started migrating to SMD, in India. Its happened everywhere else, hasn't it?

Regards,

Debu :)

superchiku
04-19-2008, 09:29 PM
well where do we get these boards for tqfp packaging?? i really got a problem finding normal dip microcontrollers not to think abt tqfp boards

wizardjack
04-20-2008, 05:54 PM
sorry for taking the thread off-topic. But would like to know if tqfp 144 pin break out boards are available (preferably in b'lore) ?

cheers !!!
wizardjack

debu
04-20-2008, 09:39 PM
Hove you guys seen this (clickie) (http://www.nex-robotics.com/viewCategoryList.php?cid=12) ?

Regards,

Debu :)

superchiku
04-20-2008, 09:59 PM
the problem is how to solder thetiny pins of an avr on th pcb?

debu
04-20-2008, 10:37 PM
@superchiku: SMD Soldering is quite easy once you get used to it.

wizardjack
04-20-2008, 10:57 PM
no..tqfp 144 pin :-(

superchiku
04-21-2008, 12:11 AM
well nex robotics is always there