UNIBUS/QBUS interface chips Was: Re: MEM11 update

Toby Thain toby at telegraphics.com.au
Mon Dec 5 17:35:58 CST 2016


On 2016-05-02 9:48 AM, Noel Chiappa wrote:
>     > From: Pete Lancashire
>
>     > Do you or someone have a list of all the Unibus bus chips ?
>
> I have seen the following bus interface chips used on DEC UNIBUS boards:
>
> Drivers:
>
> 8881 - Sprague, Signetics - Quad NAND
>
> Receivers:
>
> 380 - Signetics - Quad NOR
> 314 - Signetics - 7-input NOR
> 8815 - Signetics - 4-input NOR
> 8837 - National Semi - Hex receiver (aka Signetics N8T37)
> 8640 - National Semi - Quad NOR
>
> Transceivers:
>
> 8641 - National Semi - Quad transceiver
>
> The actal complete part number can vary depending on the manufacturer; e.g.
> the 8641's are usually DS8641N, from NatSemi, and the 380's are usually
> SP380A's or SP380N's. Where the basic number is not included (as with the
> 8T37 for the 8837) I have given it.
>
> The following chips have been used by DEC to interface to the QBUS, and
> I have seen many of the above chips (e.g. 8641's) used there too, so I
> think chips seen on one bus could be used on the other:
>
> Drivers:
>
> 7439 - Various - Quad NAND
>
> Transceivers:
>
> 2908 - AMD - Quad latching transceiver with tri-state output
>
> I _believe_ the following chips are also usable as UNIBUS/QBUS interface
> chips, but I'm not sure if I've seen one used there:
>
> Transceivers:
>
> 8836 - National Semi - Quad NOR
> 8838 - National Semi - Quad transceiver (aka Signetics N8T38)
>
> Quite a zoo!
>
> 	Noel
>


Has anyone looked at the TI Signal Switch family for QBus? (hat tip Ian 
Finder)

http://www.prnewswire.com/news-releases/three-new-bus-switch-families-from-texas-instruments-enhance-performance-of-datacom-and-networking-equipment-and-optimize-next-generation-portable-computing-and-communications-designs-70812102.html

--Toby




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