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Author Topic: How can I use a 29DL3230T-80 memory with the Arduino?  (Read 1759 times)
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Hello! I have a 29DL3230T-80 flash memory and I want to know if I can use it with my Arduino UNO board.
I have looked for the memory datasheet but I`m not sure is the correct one. I hope tha anyone can help me. Thanks.
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You were able to find a datasheet on that? I am not having any luck with it.
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Not really, y found a datasheet for MBM29DL323BD but I think it is not the one that I need. The diagrams dont match with my chip..
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Any other markings on it? Like a manufacturer?
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The pins dont match because the round mark in the chip isnt in the same place. I cant figure up what kind of package have my chip.
(Sorry if my english is not perfect, im argentinian)
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I think it is a 48-pin plastic TSOP, do you know it?
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That many pins will require several external chips to drive the address bus and the data bus.
It will be impossible without a datasheet on the memory chip. We won't even know where to connect power & ground, or if it needs 3.3V power vs 5V power.
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Yes, without the datasheet will be imposible. Do you say that we cuold need external devices because the Atmega dosnt have enough pins to work with that big memory?
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Yes.
48 pins,
say 4 are power & ground.
4 are control lines (chip select, write enable, output enable, maybe another chip select),
16 datalines,
and 24 address lines (16 megaword part?)
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Yes it will be a little hard to work with this chip and the Arduino, even if we had the datasheet.
I didnt undestand "16 megaword part?"..
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Say you had a memory part that had 20 address lines and had data 8  bits. That would be a 1 MegaByte part, 1 million address of 1 byte each.
If the same part had 16 data bits, it would be a Word wide, so 1 Megaword.
Now add some more address lines - 24 lines (16 Mega-address locations), and 16 bits, so 16 Megawords.

No datasheet, no progress.
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I cant find the datasheet yet so I think we will have to wait for a some help. Im a little disapointed because the memory was really cheap and I wanted to take advantage of it and also use my Arduino.
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