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

Name the flag bits available in 8085 microprocessors, Name  the flag bits a...

Name  the flag bits available in 8085 microprocessors. The 8085 microprocessor has five flags to show  five different  types  of data conditions .they are zero(Z),carry(CY),Sig

Led, explain about led

explain about led

Show common emitter output characteristics, Q. A Silicon Transistor Whose C...

Q. A Silicon Transistor Whose Common Emitter Output Characteristics Are Shown  In Dig Is Used In The Circuit With V cc =22.5v, R c =5.6k, R e =1k, R 2 =10k, And R 1 =90

Determine the ratio of full-load current, The rotor of a wound-rotor induct...

The rotor of a wound-rotor induction motor is rewound with twice the number of its original turns,with a cross-sectional area of the conductor in each turn of one-half the original

Stax store accumulator indirect instruction , STAX Store  Accumulator  In...

STAX Store  Accumulator  Indirect Instruction This  instruction is used to  copy data from accumulator to the memory  location pointed by register pair ( only  BC or DE pair).

Transformer box, a) Illustrate the Schematic diagram of the Transformer Box...

a) Illustrate the Schematic diagram of the Transformer Box used in the Practical Session b)  Calculate the output voltage on an Oscilloscope and determine its amplitude and freq

Certification of energy managers, Certification of Energy Managers Ce...

Certification of Energy Managers Certification of Energy Managers and Accreditation of Energy Auditing Firms One of the important provisions in the Act is to create a cad

Explain intrinsic semiconductor, Explain Intrinsic Semiconductor. Intr...

Explain Intrinsic Semiconductor. Intrinsic Semiconductor: An extremely pure semiconductor is termed as intrinsic semiconductor. But at absolute zero temperature its valence b

Grounding and shielding used in electronic instruments, Q.   How and why ar...

Q.   How and why are the grounding and shielding used in electronic instruments? Sol. In electronic instruments grounding and Shielding techniques are available in order to a

ELECTRIC DRIVES, BLOCK DIAGRAM OF DIGITAL CONTROL OF ELECTRIC DRIVES

BLOCK DIAGRAM OF DIGITAL CONTROL OF ELECTRIC DRIVES

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