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<azonenberg>
berndj: LOL
<azonenberg>
that woulud be hilarious
<azonenberg>
i want to see it happen
<berndj>
nandminer
<berndj>
care to speculate on why the MH/J (something like 0.08MH/J _at best_) is so terrible? is it the relatively giant transistors needed to drive external pins?
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<azonenberg>
This isn't a perfect stitch, you can see the edges should be straight but arent, it was one of my first die pics
<azonenberg>
7407
<azonenberg>
hex buffer with open collector outputs
<azonenberg>
you can see there's a few internal buffering transistors and then the giant pad drivers
<azonenberg>
so those obviously pull quite a bit of power
<azonenberg>
But also, look how big the inner transistors are
<azonenberg>
and how huge all of the internal signal wires are
<azonenberg>
that's a lot of parastic C to drive every time you change a signal
<azonenberg>
The pin at far right is ground
<azonenberg>
far left is power
<azonenberg>
then each pair of pads is input (the one not connected to the giant transistor) and output (the giant transistor)
<azonenberg>
One of the benefits of old-school 74xx from a study perspective is that they're relatively simple, you can see every transistor clearly
<azonenberg>
The downside is that since they're not standard cell based, or even CMOS, reading them doesn't help that much with understanding modern chips