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

Describe schmitt trigger, a) Describe Schmitt trigger with the help of tran...

a) Describe Schmitt trigger with the help of transfer characteristics. b) Also get the expression of hysteresis voltage VH and output waveform for sinusoidal input signal

Primacy of mosfet, Primacy of MOSFET In the year 1959, Dawon Kahng an...

Primacy of MOSFET In the year 1959, Dawon Kahng and Martin M. (John) Atalla at Bell laboratory invented the MOSFET. Operationally and structurally diverse from the bipolar ju

Explain fourth group of 32 ascii character code, Explain Fourth group of 32...

Explain Fourth group of 32 ASCII character code? The fourth, and final, group of 32 ASCII character codes are set aside for the lower case alphabetic symbols, five additional

Explain total internal reflection, Explain Total internal reflection? T...

Explain Total internal reflection? The refractive index of a medium is defined as the ratio of velocity of light in vacuum to the velocity of light in that medium n x = C/V

2365-305 Electrical systems design TASK A, Hi, I need help with this assign...

Hi, I need help with this assignment. Is this assignment something you can help me with?

Find the reverse saturation current of the bej, Q. A silicon BJT has an emi...

Q. A silicon BJT has an emitter current of 5m Aat 300 K when the BEJ is forward-biased by vBE = 0.7 V. Find the reverse saturation current of the BEJ. Neglecting ICBO, calculate iC

Write notes on clamping, Q. Write notes on clamping ? When a signal dr...

Q. Write notes on clamping ? When a signal drives an open-ended capacitor the average voltage level on the output terminal of the capacitor is determined by the initial charge

Mutual inductance and coefficient of coupling, Mutual inductance and coeffi...

Mutual inductance and coefficient of coupling: The equivalent inductance of two series connected coil (with mutual inductance among them) is 0.8 or 0.2 Henry based on the rela

Define pipelining, Define pipelining? In 8086, to speedup the implement...

Define pipelining? In 8086, to speedup the implementation of program, the instructions fetching and implementation of instructions are overlapped each other. This method is kno

What is the size of ports in 8255, What is the size of ports in 8255? P...

What is the size of ports in 8255? Port-A : 8-bits Port-CU : 4-bits Port-B : 8-bits Port-CL : 4-bits

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