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

Four cells in series, A battery having of 12 cells are divided in three gro...

A battery having of 12 cells are divided in three group which each group having of four cells in series. The three groups are joined in parallel. The emf of every cell is 1.5V and

Determine supply current and reactive power, A single phase line has an imp...

A single phase line has an impedance of 8.4 + j11.2 Ω. The line feeds a load consisting of a resistor and an inductor connected in parallel as shown in Figure 1. The load is absorb

Emi, what is direct reading probe

what is direct reading probe

Different types of dc generation, Q.   What are the different types of dc g...

Q.   What are the different types of dc generation according to the ways in which fields are excited. Show the connection diagram of each type. Ans. Types of D.C.

Microprocessors, three application of microprocessor

three application of microprocessor

Evaluate the current flowing in the direction from b to a, Q A beam contain...

Q A beam containing two types of charged particles is moving from A to B. Particles of type I with charge +3q, and those of type II with charge -2q (where -q is the charge of an el

Non inverting summing amplifier, Q. In the non inverting summing amplifier ...

Q. In the non inverting summing amplifier of Figure, let R d = 1k and M = 6. Find R f so that v =

Low-pass electronic filter, Low-pass electronic filter: The capacitors...

Low-pass electronic filter: The capacitors and inductors are the reactive elements of the filter. The number of elements ascertains the order of the filter. In this situation,

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