What do you understand by dram and its refreshing, Electrical Engineering

Assignment Help:

What do you understand by DRAM and its refreshing?

Dynamic RAM (DRAM) is fundamentally the same as SRAM, but this retains data for only 2 or 4 ms on an internal capacitor. But after 2 or 4 ms, the contents of the DRAM should be fully rewritten (refreshed) since the capacitors that is store logic 1 or logic 0, lose their charges. The whole content of the memory is refreshed with 256 reads in a 2-to-4 ms interval. Also refreshing occurs throughout a write, a read or a particular refresh cycle.


Related Discussions:- What do you understand by dram and its refreshing

Determine speed of the rotor field relative to rotor winding, Abalanced thr...

Abalanced three-phase, 60-Hz voltage is applied to a three-phase, two-pole induction motor. Corresponding to a per-unit slip of 0.05, determine the following: (a) The speed of t

Explain basic principle of linear sweep voltage generator, Q. Explain the b...

Q. Explain the basic principle of linear sweep voltage generator A linear time base generator or sweep generator is one that provides an output waveform, a portion of which exh

Effective mass, Effective Mass The electrons' "wave-particle" motio...

Effective Mass The electrons' "wave-particle" motion in a lattice is not the same as that for a free electron, because of the interaction with the periodic potential of the

Function of time base generator, Q. Explain the function of time base gener...

Q. Explain the function of time base generator in CRO. Sol. Oscilloscopes are used to display a waveform that varies as a function of time. If the waveform is to be accuratel

Indirect addressing , Indirect Addressing In this  addressing  mo e al...

Indirect Addressing In this  addressing  mo e also ne  of the  operands is the  stored in the memory. The memory  address of the  operand  is specified  by the  register pair.

Explain state transition diagram, a. Explain State Transition Diagram and d...

a. Explain State Transition Diagram and define the various SDL symbols used in state transition diagram. b. Draw the signal exchange diagram for a local call used to show the se

Geometric transformations, Geometric transformations   Apply the foll...

Geometric transformations   Apply the following geometric transformation to a set of points. Generate randomly coordinates for 1 point X=(x,y). X=100*rand(2,1) x=X(1,1)%to

ECE, a problem solving problem

a problem solving problem

Performance equations of three phase induction motor , Performance Equation...

Performance Equations of Three Phase Induction Motor When balanced 3-? voltages are applied to the  stator  winding  a rotating magnetic field  of constant amplitude is produc

Show common signal-processing operations, Q. Show Common signal-processing ...

Q. Show Common signal-processing operations? Common signal-processing operations include the following: • Amplification to compensate for attenuation • Filtering to reduc

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