Which DEC machine made use of th pre Flip-Chip board?

Eric Smith spacewar at gmail.com
Sat Dec 29 06:17:01 CST 2018


On Fri, Dec 21, 2018 at 10:37 AM Noel Chiappa via cctalk <
cctalk at classiccmp.org> wrote:

> AFAIK, the first ICs (in the modern sense) on FLIP CHIPS were on M-series.
>

The B198, B199, and B250 modules of the KA10 use ICs. First customer
shipments are claimed to have been in late 1967.
>From something I posted back in 2002, slightly updated:

    B198 Protection Comparator (used in KT10, KT10A "memory protection and
relocation" options)

           panel 2MN slot 44, panel 2PR slot 5

           appears to be an 8-bit magnitude comparator
           prints drawn 6-18-68, checked 6/21/68, eng. approval 7/2/68
           5  74H00N
           2  74H40N
           4  74H50N
           1  74H53N
           2  74H55N

    B199 FM Address Decoder (used in KM10 "fast registers" option)
           panel 2KL slot 9

           acts as a 4-to-16 decoder (similar to 74154), but
               requires both true and complement inputs
           prints drawn 3-2-67, checked 4/?/67, eng. approval 7/6/67
           8  TI SN7440N or Fairchild 9009 (U6A900959X)

    B250 FM Module (used in KM10 "fast registers" option), 8 words by 6 bits
           panel 2KL slots 10-13, 15-18, 20-23
           prints drawn 3-2-67, checked 6/30/67, eng. approval 7/6/67
           6  Fairchild 9030 (U6A903059X)  4 word by 2 bit RAM chip, 45ns
write, 25ns read, 350mW
           13  TI SN7440N or Fairchild 9009 (U6A900959X)


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