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Date: Wed, 14 Sep 2022 11:28:43 +0200
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From: Stephan Slabihoud <stephan@slabihoud.de>
Subject: Re: Information about the Retro Chip Tester
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Hi,

> yes, the DL2416 is the same as the HP and I checked the tester works fine with that display.... well almost, for some reason the display needs to be installed upside down??.  fortunately it doesn't hurt the display to have power / gnd put onto pins 1&18 rather than 9&10
yes, it is required since Vcc and GND have an uncommon position.

> I have attached the data sheet for the 8233/8234/8235, I do not think I have found an equivalent, at least it is not on my list.

Thanks. The 8235 is already implemented but I have no 8233 and 8234 to 
test the definition. I will try to get these ICs.

> the 74161 is equivalent to the the DM9316, the clear is asynchronous on the '161 but synchronous on the '163

Ok, thanks, added.
I also added the 9310 (=74160).

> the 80C95 is cmos of course, but I think the 8095 is equivalent to the 74365

yes, it is.

Regards,
Stephan


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