AWR1642: Question about the QSPI Timing Conditions: input raising/fail time

Chris Meng

Part Number: AWR1642

Hi,

In AWR1642 datasheet, you can find below info.

I think the input conditions is for input signals for QSPI interface of AWR1642. Is it right?

If yes, then the data lines of QSPI can be input signals. Why there is min for the input rise/fall time? We suppose that the faster the signal from low to high or high to low, the better.

over 4 years ago

0 Vivek Dham over 4 years ago

TI__Guru 58035 points

Hello Chris,

Very fast rise/fall times can cause excessive ringing , undershoot/overshoot etc.

Regards,

Vivek

0 Chris Meng over 4 years ago in reply to Vivek Dham

TI__Mastermind 37716 points

Vivek，

Thanks for your help! Below info is useful!

The rise/fall time is measured from 10% to 90% of the supply (3.3V)

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AWR1642: Question about the QSPI Timing Conditions: input raising/fail time