Hi,

I have an AT89S52 project in my mind where I need to store some data(you can assume it would be a file) on a memory IC.

My code would access the data stored and then display it over an 16x2 LCD, as if it was reading a line from the file and then display it to the user.

Now I thought about the various ways to achieve this, and the following approaches come to my mind:

1. Use 64k external memory by grounding EA/VPP. Store my entire data along with the code, using DB directives as part of the program image only.

2. Use some other chip to store my data and then access it. If I am right, there are many SPI/I2C based memory chips in the market today. Can I use one of those? Any recommendations on which one to use would be greatly appreciated.

I am in no way going to exceed 8K code size, so I can still keep within the on chip memory. In such a case, option 2 would be best, don't you think?

Please advise.

I have never used external memory in my life before and I don't even know the chip names. So I am very new to it.

Please bear with my naive questions.

Thanks in advance!
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regards,
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