![]() ![]() Multiplexers are used in various applications wherein multiple-data need to be transmitted by using a single line.Ī communication system has both a communication network and a transmission system. The controlling of multiplexer can be done by using additional I/O ports.Switching ports can be handled by adding the complexity of firmware.The ports which can be utilized at the same time have limitations.Additional delays required within switching ports & I/O signals which propagate throughout the multiplexer.The disadvantages of multiplexer include the following. The logic design can be simplified through MUX.MUX is used to implement several combinational circuits.The digital system reliability can be improved using a MUX as it decreases the number of exterior wired connections.The multiplexer ability can be extended to switch audio signals, video signals, etc. ![]() The dissipation of heat is less because of the analog switching current which ranges from 10mA to 20mA.The multiplexer can make the transmission circuit less complex & economical.Mux doesn’t require K-maps & simplification.The implementation of a number of combination circuits can be possible by using a multiplexer.It reduces the cost as well as the complexity of the circuit.In multiplexer, the usage of a number of wires can be decreased.The 8-to-1 multiplexer consists of 8 input lines, one output line, and 3 selection lines. In this IC, the o/p is the compliment of the i/p 8-to-1 Multiplexer Another example of a 4X1 multiplexer is IC 45352. In this IC, the o/p is the same as the i/p. The best example of a 4X1 multiplexer is IC 74153. In this case, D3 is transmitted to the output, and q = D3. If the control input is changed to AB =11, all gates are disabled except the bottom AND gate. In this case, D3 is transmitted to the output, and q=D0. If the control input is changed to 11, then all gates are restricted except the bottom AND gate. Thus, data input D0 is transmitted to the output ‘q” 4X1 Mux For example, when the control bits AB =00, then the higher AND gates are allowed while remaining AND gates are restricted. The following figure shows the 4X1 multiplexer circuit diagram using AND gates. ![]() The control bit AB decides which of the i/p data bit should transmit the output. The o/p ‘q’ depends on the value of control input AB. The four input bits are namely 0, D1, D2, and D3, respectively only one of the input bits is transmitted to the output. The 4X1 multiplexer comprises 4-input bits, 1- output bit, and 2- control bits. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |