Hello
This is from the datasheet, and I don't really understand it:
"Icc quiescent supply current 80uA. deltaIcc additional quiescent supply current per input pin Vi=Vcc - 2.1V, other inputs at Vcc or GND. Vcc=4.5 to 5.5V An or Bn inputs 180uA OE input 675uA DIR input 405uA"
I get the bit about Icc at 80uA, and I get the bit (not quoted) about dynamic power. But what's the additional Icc per input pin about? And why is it at Vcc - 2.1V?
Sorry if it's a dumbo question. Ta for any hints.