How dram’s are different from sram’s, Electrical Engineering

Assignment Help:

How DRAM's are different from SRAM's? Why DRAMs are said to use address multiplexing?

Ans

Dynamic RAM (DRAM) is basically the same as SRAM except that it recollects data for only 2 or 4 ms on an internal capacitor. After 2 or 4 ms, contents of the DRAM should be completely rewritten (refreshed) since the capacitorsthat store logic 1 or logic 0, lose their charges. Whole content of the memory is refreshed with 256 reads in a 2-to-4 ms interval. Refreshing also takes place during a write, a read or during a special refresh cycle.


Related Discussions:- How dram’s are different from sram’s

3phase unbalanced load flow, under three phase 4 wire load unbalanced distr...

under three phase 4 wire load unbalanced distribution network how to calacualte the voltage across the load when no load resistance is specified, however the real and reactive powe

Chemistry, what is the definition of laws of chemical combination ?

what is the definition of laws of chemical combination ?

Show lumped-circuit elements, Electric circuits or networks are formed by i...

Electric circuits or networks are formed by interconnecting various devices, sources, and components. Although the effects of each element (such as heating effects, electric-?eld e

What is expanded memory system, What is expanded memory system? EMS: Th...

What is expanded memory system? EMS: The area at location C8000H-DFFFFFH is frequently open or free. Such area is used for the expanded memory system into a XT or PC system, or

Classify the materials based on the energy bands, Classify the materials ba...

Classify the materials based on the energy bands and explain them. Classification of materials based on energy bands: With reference to various band structures demonstrate

Electric machinery fundamentals, Ask qu1. If the resistor Radj is adjusted ...

Ask qu1. If the resistor Radj is adjusted to 175O what is the rotational speed of the motor at no-load conditions? 2. Assuming no armature reaction, what is the speed of the motor

Write some disadvantages of loosely coupled systems, Write some disadvantag...

Write some disadvantages of loosely coupled systems More complicated due to the needed additional communication hardware. They are less portable and more expensive because o

Control systems design, You are to choose a particular application, model a...

You are to choose a particular application, model and simulate it using MATLAB and or SIMULINK. 1. Modelling 2. Testing and verification of the model 3. Demonstration o

How time slot interchange, Q. How time slot interchange switch works in tim...

Q. How time slot interchange switch works in time multiplexed time switching, Elucidate using schematic. Ans: Switches for which inlets and outlets are trunks that carry tim

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