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Buffer
A buffer is a logic circuit that amplifies the current or power. Basically it is used change the driving capability of a logical circuit. Therefore it is sometimes referred as drive. A simple buffer and tri state buffers (active high and active and low ) are shown in figure.
A tri state buffer if enabled provided the same logic level of the output as that of input i ,e if input is at logic 1 then it provides logic 1 output.
(a) Give three different ways how electro-magnetic interference can be reduced in twisted pairs based transmission. (b) Noise are unwanted signals affecting transmission. Lis
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Design a combinational logic circuit to convert XS3BCD code in to the standard 8421 BCD code.
Low Pressure Gas Hazards : Safety screens and wire-mesh guards should be placed round evacuated glassware and safety goggles or a face shield must be worn against the possibility
Q. Find the number of possible station frequencies in the AM broadcast system in the United States
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How is 8255 (Programmable Peripheral Interface) configured if its control registercomprises 9B h. Ans 9BH => 1001 1011 => b6b5=00-> Mode0 b4=0-> Port A as
Q. What is Miller integrator ? MILLER INTEGRATOR : Consider a basic RC circuit in which the opening of switch provides a sweep voltage.Yhe waveform generated by this basic circ
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