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

Explain in brief about the robots, Explain In brief about the Robots - ...

Explain In brief about the Robots - Robot is programmed with a series of instructions that enable it to carry out a series of tasks - On the other hand, an operator manually

Draw a schematic diagram of transformer connections, Q. Three single-phase,...

Q. Three single-phase, 10-kVA, 2400/120-V, 60- Hz transformers are connected to form a three- phase, 4160/208-V transformer bank. Each of the single-phase transformers has an equiv

Number of holes in valence band, Number of holes in valence band: Der...

Number of holes in valence band: Derive the expression for number of holes in valence band and Fermi level in an intrinsic semiconductor. (b) By that percentage does the

Explain about the typical embedded system hardware unit, Explain about the ...

Explain about the typical embedded system hardware unit. Typical Embedded System Hardware Unit: Program Flow and data path Control Unit (CU): comprises a fetch unit for fetc

Explain internal data bus, Q. Explain Internal Data Bus? Internal Data ...

Q. Explain Internal Data Bus? Internal Data Bus: A bus which operates only within internal circuitry of the CPU, communicating among internal caches of memory which are part of

Describe the processor technology used for embedded system, a. Write the ad...

a. Write the advantages of choosing a single purpose processor over a general purpose processor. b. List out the hardware units that must be there in the embedded systems. c.

#titleElectromagnetic Induction, Hello, I have some questions pertaining t...

Hello, I have some questions pertaining to electromagnetic induction. Could you please give me a hand? Thanks. If we increase the speed of the bar magnet slowly from 0 to 8, and

Explain the working of a bootstrap sweep generator, Q. Use necessary circui...

Q. Use necessary circuit and waveforms to explain the working of a Bootstrap sweep generator The bootstrap circuit illustrated in figure given below is a commonly used method f

Explain time-dependent circuit analysis, Q. Explain Time-Dependent Circuit ...

Q. Explain Time-Dependent Circuit Analysis? The response of networks to time-varying sources is considered in this chapter. The special case of sinusoidal signals is of particu

Spectral leakage, This assignment is intended to provide an easier analysis...

This assignment is intended to provide an easier analysis of how windows work. Begin by looking at individual spectrum bins as affected by off-bin-centred frequency components with

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