Tutorial 7: Memory part 1
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.. include:: shared/notformark.rst



Question 1  
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Consider a main memory built with SDRAM chips. Data are transferred in bursts as shown in the figure below, except that the burst length is 8. Assume that 32 bits of data are transferred in parallel. If a 400-MHz clock is used, how much time does it take to transfer:

a. 32 bytes of data
b. 64 bytes of data

What is the latency in each case?

.. image:: image/burstRead.png
 :align: center



Question 2
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Describe a structure similar to that in the below figure for a 16M × 32 memory using 1M× 4 memory chips.

.. image:: image/memStructure.png
 :align: center