[libre-riscv-dev] [Bug 154] Cell for Dependency Matrices is needed

[Luke Kenneth Casson Leighton]

On Tuesday, January 14, 2020, <whygee at f-cpu.org> wrote:

--- Comment #13 from Luke Kenneth Casson
>
>
>> they used ECL logic, they used *actual transistors* (3 pins, thru-hole)
>
>
> Nope, the CDC used DCTL (Direct Coupled Transistor Logic) and asked
> Fairchild
> to make a specific transistor, still sold today : the gold-doped 2N2369


ooo so if we reeeally wanted to, we could actually reconstruct a 6600 from
its original transistors.


> ECL was used later for the Cray-1, made of "many" dual (N)OR3 gates
> (and also "many" 1Kb ECL SRAM chips for the -S model)
>
> Just saying ;-)


:)

i probably garbled things, thank you for the corrections.  and the
historical insight.

thank you yg.

l.



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