Area wise large Engineering College in Uttarakhand, India

Digital Electronics Lab

Digital electronics or digital (electronic) circuits are electronics that handle digital signals (discrete bands of analog levels) rather than by continuous ranges as used in analog electronics. All levels within a band of values represent the same information state. Because of this discretization, relatively small changes to the analog signal levels due to manufacturing tolerance, signal attenuation or noise do not leave the discrete envelope, and as a result are ignored by signal state sensing circuitry.
In most cases, the number of these states is two, and they are represented by two voltage bands: one near a reference value (typically termed as “ground” or zero volts), and the other a value near the supply voltage. These correspond to the false and true values of the Boolean domain respectively. Digital techniques are useful because it is easier to get an electronic device to switch into one of a number of known states than to accurately reproduce a continuous range of values.

Sr. No.Name of PracticalEquipment RequiredIcon
1Bread-board implementation of various flip-flops.
2Bread-board implementation of counters & shift registers.
3Determination of Delay time and NAND, NOR, Ex-OR, AND & OR Gates.
4Bread Board Implementation of Flip-Flops.
5Experiments with clocked Flip-Flop.
6Design of Counters.
7Bread Board implementation of counters & shift registers.
8Implementation of Arithmetic algorithms.
9Bread Board implementation of Adder/Subtractor (Half, Full)
10Transfer characteristics of TTL inverters & TTL Schmitt Trigger inverter.
11Transfer characteristics of CMOS inverters series and CD40 series and estimation of Gate delay of CD40 series CMOS inverter.
12Monoshot multivibrators using 74121 and 74123.
13Clock circuit realization using 555 and CMOS inverter and quartz crystal.
14Adder/ subtractor operation using IC7483 4 bit/ 8 bit.
15Demultiplexer / Decoder operation using IC-74138.

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