Dram, Computer Engineering

Assignment Help:

DRAM consists of MOSFET's but the technique is to use the drain source capacitance to hold charge. If charge is present logic '1' is held, no charge logic '0'. As you know capacitors discharge themselves eventually and in order to maintain the data they require topping up. This process of topping up is termed refreshing. This involves supplying row address strobes (RAS) and column address strobes (CAS) to refresh each cell. Shown below are the pining details of a basic DRAM device.

By looking at the internal structure shown below, we can see that the design is more complex since it is required to refresh the cells.

1092_DRAM.png

Most modern processors have the required logic built in to refresh DRAM directly namely Pentium, 68060, Power PC etc.


Related Discussions:- Dram

Explain about computer architecture, Explain about Computer architecture ...

Explain about Computer architecture Computer architecture is the conceptual design and fundamental operational structure of a computer system. It is a blueprint and functional

Define deadlock, Define deadlock. A process requests resources; if the ...

Define deadlock. A process requests resources; if the resources are not available at that time, the method enters a wait state. Waiting processes might never again change state

How to create a bugzilla account? , 1. Enter your "E-mail address...

1. Enter your "E-mail address" and "Real Name" (or whatever name you need to call yourself) in the spaces given, then select the "Create Account" button. 2. Within moments, you

What search method would be most appropriate and why, (a) Describe fully in...

(a) Describe fully in your own words the following terms: (i) Turing Test (ii) Agent (iii) Utility-based agent (b) A Mars rover has to leave the lander, collect rock sample

Explain rby and cmyk colour printing, Q. Explain RBY and CMYK colour Printi...

Q. Explain RBY and CMYK colour Printing? For good printing printers don't use RBY in place of that they use CMYK (Cyan instead of Blue, Magenta instead of Red, Yellow and a sep

Changing the system prompt, Q. Changing the System Prompt? When you cha...

Q. Changing the System Prompt? When you change the directory, you would like to keep track of it. The best way to do this is by displaying the name of the current directory alo

Explain the terms constructors and destructors, When we initialize the form...

When we initialize the form at that time if we require to set any variable's value then we can set it by defining in constructor. Constructor's name always similar as class name an

Differentiate between transport & session layer of osi model, Differentiate...

Differentiate between Transport and Session layers of OSI model. OSI Model Transport Layer The transport layer utilizes the services provided through the network layer, as

What is managed code and managed data, What is managed code and managed dat...

What is managed code and managed data? Managed code is code that is written to target the services of the Common Language Runtime. In order to target these services, the code m

Explain height of a tree, Height of a tree The length of the longest pa...

Height of a tree The length of the longest path from root to any node is called as the height of the tree.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd