Re: 3.3V-5V level ****fters

Frank Buss wrote:
> Joerg wrote:
> 
>> What's the jelly-bean level ****fter du jour, the most popular?
>>
>> Need to ****ft three sigs 3.3V to 5V and another three 5V to 3.3V. Stuff

>> us analog dudes normally don't do. The TXB0104 looks ok, so does the 
>> 74LVC4245. But the specs for both are horrible, incomplete at best. Not

>> much in drive levels mentioned, or just for one direction.
> 
> The 74LVC1T45 could be a good idea, too. I'm using this chip and I know
> another company who uses it without problems. It converts a single
signal,
> only, but if you'll buy three of it, it might be less expensive than one
> 74LVC4245, and maybe easier for routing because it is smaller than a
> 24-TSSOP, if you need just three of it for one direction. But placement
> costs might be higher.
> 

Thanks, Frank. But it's >15c, ouch. Maybe ok on this design though but 
the LVC4245 is only around 30c. Placement costs are not such an issue 
out here.

On this section my layouter is probably just going to hit the autoroute 
button and then have a coffee :-)

-- 
Regards, Joerg

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