Open drain outputs on SN74AHC05N

[daubmaso]

Currently working on making a z80 computer on a breadboard. Everything went pretty smoothly but for some reason the inverter chips I happen to have are giving me trouble.

The datasheet for the SN74AHC05N says that they have open drain outputs, but when a logic one is applied to one of the 6 inputs the corresponding output is not getting pulled low and is still hovering at my supply voltage (5v) even through a 10k pullup.

Since for some reason I can't find anything else on this topic I decided to ask here to see if anyone can think of a reason this is happening, thanks in advance.

SN74AHC05N Datasheet: https://www.ti.com/lit/gpn/SN74AHC05

[daubmaso]

 
My bad, turns out my breadboard has a dicky contact at the vcc pin of where I put the inverter. Serves me right for using a 10 year old breadboard for the control logic. Sorry if I wasted anyone's time lol