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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.
De multiplexing Address Data Bus (AD 7 - AD 0 ) As it is already discussed that lower order address bus (A 7 - A 0 ) is multiplexed with data bus (D 7 - D 0 ). Hence pins
design a 32:1 multiplexer using two 16:1 multiplexer
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Q. Describe an integrator circuit ? A circuit in which output voltage is directly proportional to the integral of the input is known as an integrating circuit. An integrating c
How can I get an oscillator to genarate a sinusoid instead of a triangle wave
uses of preset inductor
Q. Explain working of Shaded-pole motors? Shaded-pole motors: The least expensive of the fractional-horsepower motors, generally rated up to 1 / 20 hp, they have salient stator
Q. Consider the synchronous counter shown in Figure of the text. (a) Draw its timing diagram. (b) Show the implementation of the same synchronous counter using D flip-flops.
explian briefly with in diagram and numerical examples
a. With neat circuit diagram and frequency response curve define the two stages RC coupled amplifier. What are its benefits and applications? b. Sketch ideal and the actual resp
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