Re: Signetics PLS173 PLA fuse numbering?

2016-09-22 Thread Eric Smith
On Thu, Sep 22, 2016 at 6:56 PM, Glen Slick wrote: > Would have been nice if Signetics had put that information into their > databooks / datasheets. The original 82S173 predated the JEDEC JESD3 standard for PLD fuse data, so numbers weren't assigned. They probably just kept

Re: Signetics PLS173 PLA fuse numbering?

2016-09-22 Thread Glen Slick
On Thu, Sep 22, 2016 at 5:30 PM, Al Kossow wrote: > there is a better diagram on page 70 of > 981-0251_ProgrammableLogicDiagramPackage_Sep90.pdf > under dataIO which gives the fuse number Excellent. That is exactly what I was trying to find. Thank you. Would have been nice

Re: Signetics PLS173 PLA fuse numbering?

2016-09-22 Thread Al Kossow
there is a better diagram on page 70 of 981-0251_ProgrammableLogicDiagramPackage_Sep90.pdf under dataIO which gives the fuse number On 9/22/16 4:23 PM, Glen Slick wrote: > A Signetics PLS173 PLA has a total of 2178 programmable fuses: > > (32 AND gates for logic terms plus 10 AND gates for

Signetics PLS173 PLA fuse numbering?

2016-09-22 Thread Glen Slick
A Signetics PLS173 PLA has a total of 2178 programmable fuses: (32 AND gates for logic terms plus 10 AND gates for control terms) times (24 true/complement inputs plus 20 true/complement inputs/outputs) = 1848 fuses (10 OR gates) times (32 AND gates logic term outputs) = 320 fuses 10 fuses for