Re: [avr-gcc-list] Homebrew ICE?

[Neil Johnson]

Joerg,

> Larry Barello suggested the use of MAX3378 level shifters which sounds
> fairly tempting to me (e. g. they'd cover the entire allowable target
> Vcc range).

They do look quite ideal for this application.

> OTOH, they are certainly a lot more expensive than the 74HC stuff i'm
> using currently, and people wanting to build their own might be faced
> with problems getting these chips.

You do know Maxim have a _very_ good view on free samples? (there's a link
on the Maxim page)  And since these devices cost $1.20 in volume I am sure
they would be happy to send anyone who wants one a couple of free samples.
Which should be more than enough for this project.

Also, when you consider the Maxim chip handles both directions, then it
would do the work of two 74HC chips, which would take up more board space
than this one Maxim chip.

Cheers,
Neil

--
Neil Johnson :: Computer Laboratory :: University of Cambridge ::
http://www.njohnson.co.uk          http://www.cl.cam.ac.uk/~nej22
----  IEE Cambridge Branch: http://www.iee-cambridge.org.uk  ----