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Altera_Forum
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16 years ago

Propagation Delay

Hello, can someone tell me what sense does Tpd (propagation delay) has for synchronous output data signals when they are set as fast outputs (it means that the registers are placed at IO pins) ? ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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Hello,

can someone tell me what sense does Tpd (propagation delay) has for synchronous output data signals when they are set as fast outputs (it means that the registers are placed at IO pins) ? In my opinion Tpd should be the same for all outputs, but it differs for about 0.1ns in my case. Why ?

Regards

Joel

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Hi Joel,

a propagation delay describes the delay of an asynchronous signal. It is the delay from an input pin through logic to an output pin.

Kind regards

GPK