[Cryptech Tech] AVR for tamper subsystem

Павел Шатов meisterpaul1 at yandex.ru
Tue Mar 17 19:34:21 UTC 2015


On 17.03.2015 17:00, Fredrik Thulin wrote:
> Hi all
>
> Yesterday on the face to face meeting, we talked about the two suggestions for
> the tamper subsystem - MSP430 and a PIC. We decided on an AVR ;).
>
> I'm not very familiar with the ATtiny family, but the one named ATTINY828R-AU
> looks reasonable to me.
>
> We're not sure of the exact number of GPIOs we want/need, but in the drawings
> we are using at least 12 I think. This particular chip has 28 IOs, and we
> might pick a smaller one for a later design.
>
> Comments from people more familiar with ATtiny? Would the ATTINY828R-AU be a
> good enough approximation for the Alpha board?
>

I believe, yes.

--
With best regards,
Pavel Shatov


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