[Arm-netbook] level shifting on 24-pin RGB/TTL

Luke Kenneth Casson Leighton luke.leighton at gmail.com
Wed Sep 21 22:36:42 BST 2011


folks, hi,

there's something slightly complex that's come up about this
EOMA/PCMCIA standard: the possibility that SoCs might have different
TTL levels for the 24-pin RGB/TTL output.  does anyone know if that's
the case?  should i be putting that Tri-State buffers which also have
Level Shifting are required?  if so, what's the best buffer / part -
low cost! - that does the job?

so far i've found this:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=AVC16T245DGGR-D-ND

it's a 16-bit bus driver IC, only $0.70 in medium-volume quantities.
the 32-bit ones are insane prices ($2)

there has to be something out there that's lower cost than this!

l.



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