Re: [Gumstix-users] Where to buy PCA9515A (U$2)

[DJ D. <dj...@de...>]

Digikey has them, the're $1.50 each for SOIC and $2.25 for TSSOP.

You have made sure that there's a pullup on BOTH sides of the
repeater, right?  I'm sure you have, just being paranoid.  Also, you
might have toasted the pullup resistor.

If you think the chip is bad, remove it.  At that point, both lines on
both sides should be pulled up.  If so, it's the chip.  If not, check
the resistors.