UNIBUS/QBUS interface chips Was: Re: MEM11 update

Don North north at alum.mit.edu
Mon May 2 13:07:21 CDT 2016


On 5/2/2016 7:04 AM, Mattis Lind wrote:
>> 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!
>>
> DEC also used the DEC DC005 for the data and address lines on QBUS cards.
> The Signetics code is C2324N

DEC also used the DC005 (8 pcs) for address / data interface on the M8739 KLESI 
(Aztec/RC25)
UNIBUS interface card. DC013's were used for the NPR/NPG and BR/BG logic.

Don



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