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SN74LVCH8T245 Power Calculation

Other Parts Discussed in Thread: SN74LVCH8T245

Hello,

I know this should be trivial, but I'm having trouble calculating power consumption of the SN74LVCH8T245.  In my system Vcca= 3.3V;  Vccb = 5.0V.  DIR is tied low.  Both will sides will be communicating directly with other digital ICs. 

Is there a white paper I can review or is their a simple process?  There are a lot of confusing specs in the datasheet.

 

Thanks!