Author Topic: IC Identification Help  (Read 1668 times)

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Offline Lonnie MasonTopic starter

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IC Identification Help
« on: July 16, 2017, 06:24:06 pm »
Hello everyone :)

I received a nice donation of vintage electronic components.
Most of the components are from the 70s-80s I got a lot of IC's.

I have been able to identify all but 6 of them.
If anyone has any information about these IC's that would be awesome.

Image of IC's

Unidentified IC's

930

962

HAL16L8CN 8513 8075968 TANDY ©82

SW 7494-N 7351

MS16A 150?J SE IWAKI

AY-3-1015D 7937
 

Offline firehopper

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Re: IC Identification Help
« Reply #1 on: July 16, 2017, 06:39:17 pm »
Hello everyone :)

I received a nice donation of vintage electronic components.
Most of the components are from the 70s-80s I got a lot of IC's.

I have been able to identify all but 6 of them.
If anyone has any information about these IC's that would be awesome.

Image of IC's

Unidentified IC's

930

962

HAL16L8CN 8513 8075968 TANDY ©82

SW 7494-N 7351

MS16A 150?J SE IWAKI

AY-3-1015D 7937

the HAL is a PAL or GAL logic chip, possibly from a tandy computer?
the ay-3 is possibly a sound chip of some sort.
 
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Offline Gyro

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Re: IC Identification Help
« Reply #2 on: July 16, 2017, 06:40:57 pm »
Google is your friend - for some of them anyway...

The AY-3-1015D is a UART
The Tandy chip is a PAL - probably programmed for some Tandy product.
The 7494 is a standard TTL 4 bit shift register
The one with 150 Ohm on it is almost certainly a resistor pack
The 930 and 960 are DTL (diode-transistor) Logic chips


P.S. Welcome to the forum.  :)
« Last Edit: July 16, 2017, 06:45:21 pm by Gyro »
Best Regards, Chris
 
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Offline Lonnie MasonTopic starter

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Re: IC Identification Help
« Reply #3 on: July 16, 2017, 06:45:46 pm »
Thanks for the help :)
 

Offline Benta

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Re: IC Identification Help
« Reply #4 on: July 16, 2017, 06:55:03 pm »
Almost right, you got 5 out of 6.

Quote
The Tandy chip is a PAL - probably programmed for some Tandy product.

It's actually a HAL - hard array logic, which is a mask programmed version of a PAL. Absolutely useless for anything other than the original Tandy circuit.

I'm more impressed with your knowledge about the DTL parts, never seen those myself before, even after 40+ years working with semiconductors. Chapeau!
 
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