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

Differentiate between accuracy and precision, Q. With suitable example diff...

Q. With suitable example differentiate between accuracy and precision.  Sol. Accuracy :  Accuracy is the closeness with which instrument reading approaches the true value of

For the given circuit determine voltage, Q. For the circuit shown in Figure...

Q. For the circuit shown in Figure, determine v out (t).

The quantity of electricity transferred., If a current of 10A flows for fou...

If a current of 10A flows for four minutes, find the quantity of electricity transferred. Quantity of electricity, Q=It coulombs. I =10A and t = 4 × 60 = 240s.  Hence Q =

Define and explain numerical aperture, Define and explain Numerical apertur...

Define and explain Numerical aperture? Figure shown below shows an incident ray to the fibre, The light bends at two interfaces, one at the air- core interface and the

Determine the stator current and power factor, A ¼-hp, 230-V, 60-Hz, four-p...

A ¼-hp, 230-V, 60-Hz, four-pole, single-phase inductionmotor has the following parameters and losses: R 1 = 10 , X l1 = X l2 = 12.5 ,R 2 = 11.5 , and X m = 250 . The core

Digital electronics, Design a 4-bit synchronous counter that has the follow...

Design a 4-bit synchronous counter that has the following sequence: 0 ?4? 9?12 ? 14 ?15 and repeat using: i) JK FF ii)D FF

Explain immediate data addressing mode, Explain immediate data addressing m...

Explain immediate data addressing mode (with examples) available in microprocessors. Immediate Mode: The operand given in immediate mode is the actual data itself.

Illustrate how to replace the ht fuse, Illustrate how to replace the HT Fus...

Illustrate how to replace the HT Fuse on a 6-pole and 4-pole structure? Ans: a) Open switch on 6-pole or 4-pole. b) Connect the discharge rod between earth and conduc

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