Are These for Retro Fans? Let's Find Out!

  • Thread starter Thread starter Sami1999
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Discussion Overview

The discussion revolves around the identification and potential recycling of old DRAM memory cards, specifically focusing on their specifications and relevance to retro computing enthusiasts. Participants explore the characteristics of the memory ICs and their historical significance.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants identify the memory cards as DRAMs, specifically 1 Meg DRAMs, and provide details about the part number and manufacturer.
  • One participant acknowledges a correction regarding the use of DRAMs in memory SIMMs, indicating a background primarily in SRAMs.
  • Another participant suggests that while recycling is an option, it may be worthwhile to check with retro fans first, as older hardware can be valuable and hard to find.
  • A participant notes the significance of certain numbers on the chips, interpreting them as date codes indicating the manufacturing week and year.

Areas of Agreement / Disagreement

Participants express a mix of agreement and differing views regarding the recycling of the memory cards, with some emphasizing the potential value to retro fans while others suggest recycling as a viable option.

Contextual Notes

There are unresolved assumptions regarding the actual demand for the memory cards among retro computing enthusiasts and the specific conditions under which they may be considered valuable.

Who May Find This Useful

Individuals interested in retro computing, hardware recycling, and the historical context of memory technologies may find this discussion relevant.

Sami1999
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TL;DR
I have found these old electronic parts in some forgotten electronics junk pile. And even though I can identify the individual parts I still can't know what they are used for together.
20200911_162256.jpg
 
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They look like memory SIMMs. What are the ICs that you say you have identified? SRAMs DRAMs maybe?
 
Yes, they are DRAM memory cards. Here's the description of the parts on the left. So the chips are 1 Meg DRAMs. So these are OLD. Recycle them if you can.
Part #: TC514256AJL-80
Part Category: Memory ICs
Manufacturer: Toshiba America Electronic Components, Inc.
Description: Fast Page DRAM, 256KX4, 80ns, CMOS, PDSO20
 
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phyzguy said:
DRAM memory cards
Yes, I'll correct my post. I work mostly with SRAMs, but memory SIMMs would use DRAMs. Duh! Thanks
 
Thank you guys I really appreciate it.
 
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phyzguy said:
Recycle them if you can.

Actually I would check first with retro fans, some older hardware is hard to find and sought after.

Several months ago I needed a plain vanilla old Pentium for a picture, took me several days to locate one.
 
Last edited:
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The numbers 9020, 9024, 9025, and 9038 are probably a package year and week date code. 9020 = 20th week of 1990.
 
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Borek said:
Actually I would check first with retro fans
Great idea, will do.
Thanks
 

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