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

What is the importance of rs232-c in serial communication, What is the impo...

What is the importance of RS232-C in serial communication? RS-232 that is Recommend Standard number 232 and C is the new revision of the standard. The serial ports on main comp

For configurations of the coupled coils obtain the voltage, Q. For the conf...

Q. For the configurations of the coupled coils shown in Figure, obtain the voltage equations for v 1 and v 2 .

Explain how memory paging is used for memory addressing, Explain how memory...

Explain how memory paging is used for memory addressing. The memory paging mechanism placed inside the 80386 and above permits any physical memory location to be assigned to se

Equivalent series impedance referred to the high-voltage, Q. A 25-kVA, 2300...

Q. A 25-kVA, 2300:230-V, 60-Hz, single-phase transformer has the following parameters: resistance of high-voltage winding 1.5 , resistance of low-voltage winding 0.015 , leakage

Find current-equivalent resistor reductions for the network, Q. Find the cu...

Q. Find the currents I x using current division and equivalent resistor reductions for the networks given in Figure.

Delay line in CRO, why we use delay line in CRO what happens if we not use ...

why we use delay line in CRO what happens if we not use it?

List the different types of flags, List the different types of flags affect...

List the different types of flags affected by the arithmetic and logic operations. Carry flag, Auxiliary carry flag , Parity flag, Sign flag, Zero flag

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

Rlc circuits, Parallel rlc circiut with a variable cap connected in series ...

Parallel rlc circiut with a variable cap connected in series with a resistor

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