SN74AHC74: About input transition rise or fall rate

Tsukui Yusuke

Guru 21930 points

Part Number: SN74AHC74

Hi,

Could you tell me about input transition rise or fall rate?

The following contents are described in the data sheet.
Which pin does this spec target?
Does this target include the /CLR pin?

If the /CLR pin was targeted,
Please tell me the phenomenon that can occur if it exceeds 20 nse/V.

Regards,
Yusuke

over 4 years ago

0 Clemens Ladisch over 4 years ago

Guru 243120 points

Unless the datasheet calls out specific pins, this applies to all inputs.

If the rise or fall rate is too slow, the device might not work, or even get damaged; see [FAQ] How does a slow or floating input affect a CMOS device?

Logic

Logic forum

SN74AHC74: About input transition rise or fall rate