SN54AC14-SP: Power dissipation computation

Jonathan Geronga

Part Number: SN54AC14-SP
Other Parts Discussed in Thread: SN54AC14

Hi Team,

Our customer would like to confirm the power consumption calculation of SN54AC14.
Here's the customer schematic below:

As this component is composed of 6 inverting gates, They would like to know if the calculation must be done for each used gate?
Then does the total power dissipation result in the sum of each value?

Please let me know if you need clarifications with the customer.

Thanks,

Jonathan

over 4 years ago

0 Clemens Ladisch over 4 years ago

Guru 316690 points

See [FAQ] How do I Calculate Power Consumption or Current Consumption for my CMOS Logic Device?

The dynamic power consumption indeed must be added up for each gate. (The N_SW factor in P_T works only if the gates are switching at the same frequency.)

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SN54AC14-SP: Power dissipation computation