Memory question

  • Thread starter mathrocks
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Hi, how do you go about figuring out how many memory chips are needed to design a memory unit that contains 64k 8 bit words and each memory chip is 4096x4?

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  • #2
chroot
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Well, each of your 4k x 4 chips provides 4k addresses. You need 64k addresses, so you're going to need 16 of those chips just to get enough addresses. Futhermore, each chip only provides 4 bits per address, and you need 8 bits per address, so you'll need two chips per address. Thus, you'll need 16 * 2 = 32 chips.

- Warren
 

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