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Discussion Groups | Comp.Arch.Embedded | Is Atmel dataflash 5v safe?

There are 3 messages in this thread.

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Is Atmel dataflash 5v safe? - Tim Mitchell - 06:44 08-04-05



Despite scouring the datasheet, I cannot find the answer to this 
question:
Can you safely apply 5V inputs to Atmel Dataflash devices? (vcc=2.7V)

It quotes the "Absolute Max input voltage" as 6.25V, so presumably it 
won't blow up, but will it work?

I'm using a 5V processor and would rather like to not get involved in 
lots of level shifting.
-- 
Tim Mitchell

Re: Is Atmel dataflash 5v safe? - Dejan - 07:06 08-04-05

"Tim Mitchell" <t...@sabretechnology.co.uk> wrote in message
news:b...@tega.co.uk...
> Despite scouring the datasheet, I cannot find the answer to this
> question:
> Can you safely apply 5V inputs to Atmel Dataflash devices? (vcc=2.7V)
>
> It quotes the "Absolute Max input voltage" as 6.25V, so presumably it
> won't blow up, but will it work?
>
> I'm using a 5V processor and would rather like to not get involved in
> lots of level shifting.
> -- 
> Tim Mitchell

I am using AT45DB041 in a 5V system. It is designed to withstand 5V on
inputs...
All works flawlessly...

regards

Dejan

Re: Is Atmel dataflash 5v safe? - dmm - 07:55 08-04-05

On Fri, 8 Apr 2005 11:44:57 +0100, Tim Mitchell <t...@sabretechnology.co.uk> wrote:

>Despite scouring the datasheet, I cannot find the answer to this 
>question:
>Can you safely apply 5V inputs to Atmel Dataflash devices? (vcc=2.7V)
>
>It quotes the "Absolute Max input voltage" as 6.25V, so presumably it 
>won't blow up, but will it work?
>
>I'm using a 5V processor and would rather like to not get involved in 
>lots of level shifting.

Atmel's document DOC3297 describes using 3V Dataflash devices in 5 volt systems.

regards
David