SN74HC4020: Frequency range by supply voltage

Ryu Yamashita

Part Number: SN74HC4020

Tool/software:

Hi team,

I think the maximum frequency that can be input to this device depends on the supply voltage.
I would like to input 16MHz, but would like to lower it to 4.5V or less.

Best Regards,
Ryu.

2 months ago

0 Clemens Ladisch 2 months ago

Guru 311400 points

The maximum guaranteed frequency is specified in section 5.5. For voltages less than 4.5 V, use linear interpolation.

0 Ryu Yamashita 2 months ago in reply to Clemens Ladisch

Genius 3360 points

I know it is mentioned in 5.5.
So you are saying that I should use 4.5V and 2V data to get in between?
If it is 16MHz, does that mean about 3.5V?

+1 Clemens Ladisch 2 months ago in reply to Ryu Yamashita

Guru 311400 points

Yes, the limit would be 16 MHz at about 3.65 V.

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SN74HC4020: Frequency range by supply voltage