ISO6740: Propagation delay time

Hi Adachi-san,

Thanks for reaching out.

Masakazu Adachi said:

The customer is concerned about min time of propagation delay time at 5-V supply.

The maximum propagation delay time is the one that most customers would require to estimate the maximum datarate and other timings. Minimum prop delay isn't usually a parameter that's required for any analysis, for this reason, we do not characterize our devices for min prop delay.

Masakazu Adachi said:

From the PWD, If L->H tPLH is 18 ns (max) and immediately after H->L, is tPHL =11 ns (min.) considered?

This is unlikely to happen for most samples. The variation is generally not going to be as wide as the specifications in datasheet. Most parameters will have typical prop delays and if one delay shifts upwards, the other also likely shift a little bit upwards. Thus, it is very unlikely that you will see tPLH and tPHL hit the opposite ends of specifications immediately in a single unit.

Let me know if you have any further questions, thanks.

Regards,
Koteshwar Rao

Hi Koteshwar-san,

Thank you for your kind review of the contents.

I understand. I will tell the customer.

Regards,

Adachi