DRAM Interfaces

Embedded System

This set of Embedded Systems Multiple Choice Questions & Answers (MCQs) focuses on “DRAM Interfaces”.

1. In which pin does the data appear in the basic DRAM interfacing?
a) dout pin
b) din pin
c) clock
d) interrupt pin

2. What is the duration for memory refresh to remain compatible?
a) 20 microseconds
b) 12 microseconds
c) 15 microseconds
d) 10 microseconds

3. Which interfacing method lowers the speed of the processor?
a) basic DRAM interface
b) page mode interface
c) page interleaving
d) burst mode interface

4. What is EDO RAM?
a) extreme data operation
b) extended direct operation
c) extended data out
d) extended DRAM out

5. What is RDRAM?
a) refresh DRAM
b) recycle DRAM
c) Rambus DRAM
d) refreshing DRAM

6. Which of the following can transfer up to 1.6 billion bytes per second?
a) DRAM
b) RDRAM
c) EDO RAM
d) SDRAM

7. Which of the following cycle is larger than the access time?
a) write cycle
b) set up time
c) read cycle
d) hold time

8. Which mode of operation selects an internal page of memory in the DRAM interfacing?
a) page interleaving
b) page mode
c) burst mode
d) EDO RAM

9. What is the maximum time that the RAS signal can be asserted in the page mode operation?
a) 5 microseconds
b) 10 microseconds
c) 15 microseconds
d) 20 microseconds

10. Which of the following mode of operation in the DRAM interfacing has a page boundary?
a) burst mode
b) EDO RAM
c) page mode
d) page interleaving

11. Which mode offers the banking of memory in the DRAM interfacing technique?
a) page mode
b) basic DRAM interfacing
c) page interleaving
d) burst mode

12. Which of the following has a fast page mode RAM?
a) burst mode
b) page interleaving
c) EDO memory
d) page mode

13. Which mode reduces the need for fast static RAMs?
a) page mode
b) page interleaving
c) burst mode
d) EDO memory

14. Which of the following is also known as hyper page mode enabled DRAM?
a) page mode
b) EDO DRAM
c) burst EDO DRAM
d) page interleaving

15. What does BEDO DRAM stand for?
a) burst EDO DRAM
b) buffer EDO DRAM
c) BIBO EDO DRAM
d) bilateral EDO DRAM

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