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Re: HP 1820-0090 from 5216A counter


 

--- In hp_agilent_equipment@..., Jim Reese <nfeinc@y...>
wrote:
Hello,

Fedlog says it is a TTL 4 bit storage register. No
JEDEC P/N cross reference given, but it is probably
74xx series. It is also the same as an 1820-0091 and
1820-0116.

Regards,

Jim
Hi Jim,

Thanks. Functionally it looks a lot like a 7475 except that the
pinouts don't match.

Cheers
Ian Du Rieu

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