Author Topic: [Taken] anybody want 4164, 41256 and 4464 DRAM chips? [AU]  (Read 2191 times)

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Offline retiredfelineTopic starter

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[Taken] anybody want 4164, 41256 and 4464 DRAM chips? [AU]
« on: December 02, 2023, 11:29:34 am »
Many years ago I pulled these chips off computer boards using a heat gun and a cardboard box. I'm guessing I have about 50 of each. I'm not into restoring old micros and any project to use them would be more effort than worth. Access times are 100 to 150 ns from a glance.

So if you think you can use them and can pick up or pay local postage (AU), you're welcome to them; PM me. They are as is, and I'm sure there are duds in there. I see that a simple tester can be built for 4164/41256 from an Arduino and a handful of components. It's that I have no project to use them in after testing but hate to see them go to e-waste.
« Last Edit: December 18, 2023, 09:33:40 pm by retiredfeline »
 

Offline DavidAlfa

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Re: anybody want 4164, 41256 and 4464 DRAM chips? [AU]
« Reply #1 on: December 02, 2023, 06:03:52 pm »
Ebay will probably get them off your hands quickly!
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Offline retiredfelineTopic starter

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Re: anybody want 4164 and 41256 DRAM chips? [AU]
« Reply #2 on: December 14, 2023, 10:57:46 am »
Turns out I have about 150 each of 4164 and 41256. Obviously I'm lousy at estimating quantities by look. I put together a couple of testers and most of the chips pass the test. I even got stuck into speeding up the code by 2x. I've written it up the hack here:

https://hackaday.io/page/21811-halving-the-execution-time-of-an-arduino-sketch

I'm happy to give them away but for minimum hassle.
 

Offline CJay

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Re: anybody want 4164, 41256 and 4464 DRAM chips? [AU]
« Reply #3 on: December 14, 2023, 06:43:58 pm »
Argh, I could really use some of the 4164 (so many fakes) but the hassle and shipping to the UK would be a PITA for you so I really hope they find a good home in Aus
 

Online Kean

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Re: [Taken] anybody want 4164, 41256 and 4464 DRAM chips? [AU]
« Reply #4 on: December 19, 2023, 03:24:25 pm »
If they are still available, I will take them to save for future repairs of my vintage gear and to share with friends.  I am in Sydney.  Will send a PM.
 

Offline retiredfelineTopic starter

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Re: [Taken] anybody want 4164, 41256 and 4464 DRAM chips? [AU]
« Reply #5 on: December 19, 2023, 09:47:05 pm »
Sorry, they were taken yesterday.
 
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