The 7223 is definitely the date code. However the MICI 2/C doesn't sound like
any TI part number I ever heard of. More than likely it's a Smiths part
number. Semiconductor manufacturers routinely stamp parts made for other
companies with proprietary numbers.
Michael Syré wrote:
> Hi,
>
> I've got an old Smiths RevCounter at the TechnoClassica in Essen, Germany.
> I think, there is an damaged IC in it.
> It is a TexasInstruments part and signed with the TI-logo and:
>
> MICI
> 2/C
> and crosswise 7223 (maybe the 23. week of 1972???).
>
> On the inside there is stamped 810P
> The RevCounter was produced for BritishLeyland's Triumph Spitfire(?).
>
> I need a new IC to use the RevCounter in my new(old) '73 Mini 1000 and
> hope, you will be able to help me.
>
> Best regards
> Michael Syré
>
> 72TR6 U1267 sapphire-blue
> 73Mini1000 tuscan-blue
--
George Richardson
The Wyvern - '57 TR3, TS15559L - http://www.merlingroupinc.com/tr3.htm
The Hippogrif - '71 Stag MKI, LE8176E - soon to get a site of it's own
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