| View previous topic :: View next topic |
| Author |
Message |
dstraney
Joined: 15 Oct 2023
Posts: 113
|
 Posted: Thu Nov 23, 2023 11:56 am Post subject: Intersil 7552 white-ceramic/gold chips from 1974 - SOLD OUT |
 |
|
Have a TON of these in tubes but no idea what they are: haven't been able to find any references to the part number "75521C" (some also show "7552-1C"). One of the tubes is marked as Intel 2102A (a 1K x 1 bit SRAM) but I don't know if that's just a case of tube re-use - because the 2102 has a weird Vcc/Gnd pinout, going to try carefully powering one up when I'm back home in a week+ and see if it matches the behavior of a 2102.
It's an Intersil 7552 1K x 1 SRAM, drop-in compatible with an Intel 2102. Thanks to frag_ for the positive ID.
All have 70's date codes.
$5 each + $5 for USPS shipping within the USA, or free shipping to AVICC since I can batch them up into one package. I take Paypal.
_________________
High-reliability electronics photography & circuit analysis: https://dcstraney.wordpress.com
All electronics photography: https://www.flickr.com/photos/147639706@N02/albums
Last edited by dstraney on Sun Dec 03, 2023 4:28 pm; edited 2 times in total |
|
| Back to top |
|
 |
dennydo
Joined: 22 Feb 2021
Posts: 287
Location: Luxembourg
|
|
| Back to top |
|
|
debs3759
Joined: 18 Jan 2006
Posts: 9477
Location: Northampton, Divided Kingdom
|
| Posted: Thu Nov 23, 2023 12:41 pm Post subject: |
|
|
I think that's Intersil, not Intel. I'm not expert with logos though.
_________________
My graphics card database can be found at http://www.gpuzoo.com.
I can resist anything except temptation.
Debs |
|
| Back to top |
|
|
Bator
Joined: 28 Oct 2013
Posts: 1285
Location: Russia / Yakutia & Siberia
|
| Posted: Thu Nov 23, 2023 12:53 pm Post subject: |
|
|
| debs3759 wrote: | | I think that's Intersil, not Intel. I'm not expert with logos though. |
debs3759, you are right.
Of course Intersil.
_________________
WTB List / Trade List |
|
| Back to top |
|
|
frag_
Joined: 17 Nov 2008
Posts: 4015
Location: Estonia
|
| Posted: Thu Nov 23, 2023 12:54 pm Post subject: |
|
|
| It's Intersil 7552 - 1024x1 sram, drop-in compatible with 2102A. |
|
| Back to top |
|
|
dstraney
Joined: 15 Oct 2023
Posts: 113
|
|
| Back to top |
|
|
|
![[ Hidden ]](https://cdn.cpu-world.com/forum/templates/CPUWorld/images/lang_english/icon_email.gif "[ Hidden ]"){kind=icon}