Guzunty Pi logic level up shifter testing notes

Now I am going to use the SN74HC03N to logic level shift up the Guzunty Pi's 3V3 signals to 5V0.

This made in Mexico chip is not RoHS but very cheap, only HK1.83 each, in quantities of 10.

The spec says that the continuous current is 25mA, to total 50mA.  So if I am using all outputs to drive 4 seven-segment LED segments, each NAND gate sinks 50/4 = 12.5mA.  I am not very sure if 12.5mA is more than enough.

And for the digit enable signal, of course it should be enough.

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