PCI1520 implementation

Chris Comer

Other Parts Discussed in Thread: PCI1520

I am doing a PCB layout of a circuit with the PCI1520. I was wondering what is the maximum trace lengths for the PCMCIA bus signals to the connector? I am thinking it would be similar to the PCI interface, but not sure. Thanks.

over 12 years ago

0 Elias Villegas M. over 12 years ago

TI__Guru* 76130 points

Hello,

We are reviewing your question and we'll reply soon.

Regards.

0 Elias Villegas M. over 12 years ago

TI__Guru* 76130 points

Hello,

I 've been looking on the spec for a maximum trace length and didn't find anything, it is of course the signal integrity parameter which are specified.

Your approach to treat the PCMCIA signals like the PCI signals is correct.

Regards.

0 Chris Comer over 12 years ago in reply to Elias Villegas M.

Prodigy 70 points

The main issue with following the PCI spec is that the traces would have to be <2.5 inches for the clock(s) and <1.5 for all the rest. I am using the PDV package for the PCI1520 and there is no way to be under the 1.5 inch max because of the size of the chip.

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PCI1520 implementation