27 Feb
2024
27 Feb
'24
2:31 p.m.
> I would love to see a PDP-8 with 1/2 size flip
chips using today's smaller logic.
Can you get the logic ? Especially the bus / backplane driving parts.
https://retrocmp.com/projects/qbone/326-qbone-unibone-alternative-bus-drive…
Q-bus transceivers (DS8641 being a classic) are unobtainium in commercial qtys, the
substitutes listed seem little more available
Omnibus parts ...
https://www.microchip.com/en-us/product/pic16f13145
An 8..28 pin microcontroller with 32 (4-1) LUTs on 1.8 - 5 V supply, might control output
transistors for roll your own bus transceivers
Small, cheap and perhaps sufficiently fast / flexible; also, perhaps competition for the
22V10 ?
Martin