Author Topic: Intel C4004 Like IC, Need help Identifying it  (Read 801 times)

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Offline CoopedUpTopic starter

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Intel C4004 Like IC, Need help Identifying it
« on: August 31, 2019, 04:40:59 pm »
I don't know what this is, I have tried looking up the numbers but I feel like this is a custom batch or something for a company or I just suck at looking things up. I have previously owned a C4004 and this looks fairly similar just different numbers. Anyways If anyone knows what these are I would appreciate knowing as well thanks!
« Last Edit: August 31, 2019, 08:07:16 pm by CoopedUp »
 

Offline CoopedUpTopic starter

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Re: I have something like the C4004 that I need help with
« Reply #1 on: August 31, 2019, 04:52:41 pm »
What I mean by custom batch is like a Heathkit run or something.
 

Offline Brumby

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Re: Intel C4004 Like IC, Need help Identifying it
« Reply #2 on: September 01, 2019, 01:33:51 am »
Don't get too focussed on the look.  It's a 16 pin DIL ceramic package - which could house any one of a number of chips.

The markings don't click with me - but then I'm no aficionado.  There's a good chance someone here might have an idea.
 

Offline amyk

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Re: Intel C4004 Like IC, Need help Identifying it
« Reply #3 on: September 01, 2019, 02:19:57 am »
7181 looks like a datecode for 1971, which would mean Amelco/Teledyne 300 series "HNIL" (High Noise Immunity Logic, a DTL variant) looks about the right timeframe; 311 is an RST flip-flop and at least the number of pins on the package lines up. I've attached some more info on that family, and since it has a schematic of the 311 you can try to test the pins with a multimeter and see if that also matches.

(Source is "Anglo-American Micro-electronics Data 1968-69", which is basically one huge databook; the whole thing can be found at the usual places online if you're curious.)
 

Offline CoopedUpTopic starter

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Re: Intel C4004 Like IC, Need help Identifying it
« Reply #4 on: September 01, 2019, 02:53:04 am »
I also have some of these smaller round transistors like semiconductor if anyone knows what they are.
 


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