# multiplexer ic number

A multiplexer (mux) or a data selector or input selector is a combinational circuit device that selects one of N inputs and provides it on its output. There are many way to construct a 4:1 Mux, one possibility is using 2:1 Mux as shown below: Alternatively, a 4:1 Mux can be built out of basic gates. IC 74151A is an 8: 1 multiplexer which provides two complementary outputs Y & Y. It is intended for use in applications requiring high voltage switching controlled by low voltage control signals such as ultrasound imaging and printers. inputs has The 7400 series has several ICs that contain multiplexers: Demultiplexers take one data input and a number of selection inputs, and they have several outputs. 2 Superscript upper N Question: O#4 I 10 Point] Design A 64 X 1 Multiplexer (MUX) By Using Minimum Number Of 8x1 Multiplexers (MUX With Enable Pin) And Additional Logic Elements As Needed. As we only have one control line, (A) then we can only switch 2 1 inputs and in this simple example, the 2-input multiplexer connects one of two 1-bit sources to a common output, producing a 2-to-1-line multiplexer. Multiplexers are also heavily used in I/O operations, data buses, and register files. In the case of a 2-to-1 multiplexer, a logic value of 0 would connect $${\displaystyle \scriptstyle I_{0}}$$ to the output while a logic value of 1 would connect $${\displaystyle \scriptstyle I_{1}}$$ to the output. is the output: These tables show that when 0 I ⌈ Vcc is on pin 16 and GND is on pin 8. While smaller overall, this multiplexer is also nonrestoring. selection lines. Multiplexer. The image to the right demonstrates this benefit. CD4052 as 4:1 Multiplexer: this IC is most suited for high-speed bipolar memory chip select address decoding. 2 The relation between the number of output lines and the number of select lines is the same as we saw in a multiplexer. The 7400 series has several ICs that contain demultiplexers: Multiplexers can also be used as programmable logic devices, specifically to implement Boolean functions. [4] The schematic on the right shows a 2-to-1 multiplexer on the left and an equivalent switch on the right. Explanation: IC 74154 is used for the implementation of 1-to-16 DEMUX, whose output is inverted input. A multiplexer with 2N input lines requires N select lines. This means that any function of the selection bits can be constructed by logically OR-ing the correct set of outputs. ¬ {\displaystyle A=(X\wedge \neg S)}, B 10173 : Quad 2-Input Mux With Latched Outputs. The 74151 is a popular 16-pin DIP IC that implements an 8:1 mux. A multiplexer is often used with a complementary demultiplexer on the receiving end.[1]. Even in ASIC design, arbitrary sized multiplexers are not always offered. 74157 Its function is shown below: Q = Pins 5 and 6 are the outputs, the output on pin 6 is the inverted version of the output on pin 5. The IC CD4052 is a CMOS based high voltage Multiplexer and Demultiplexer IC. Multiplexers generally only come in a few common sizes. Larger multiplexers are also common and, as stated above, require From there the sum of minterms and the logic function for a 2:1 MUX can be derived. ⁡ Micrel’s Precision Edge® product family includes precision frequency synthesizers, clock distribution and translation, multiplexers, crosspoint switches, and high-speed gates — all aimed at meeting the most rigorous, timing-critical applications. IC 74150 performs the operation of 16 : 1 mux, IC 74151 performs the operation of 8 : 1 mux, IC 74153 is used to perform 4 : 1 mux, and IC 74157 performs the operation of 2 : 1 multiplexer. = Since there are ‘n’ selection lines, there will be 2 n possible combinations of zeros and ones. Q = A.I0.I1 + A.I0.I1 … then For example, 9 to 16 inputs would require no fewer than 4 selector pins and 17 to 32 inputs would require no fewer than 5 selector pins. Various multiplexers are available in discrete chips as well for both 7400 series and 4000 series. A multiplxer is a device that receives multiple inputs from usually different sources. Fig. X This would be typical when: a multiplexer serves a number of IP network users; and then feeds directly into a router, which immediately reads the content of the entire link into its routing processor; and then does the demultiplexing in memory from where it will be converted directly into IP sections. A truth table is provided on the right. When EN = 1, the multiplexer performs its operation depending on the selection line. Part Number: ROBOT 74712C Description: MUX IC for Sensormatic/American Dynamics Robot Multiplexer Price: $39.00 Larger Picture *Firmware, IC Remover Tool. = Sanfoundry Global Education & Learning Series – Digital Circuits. ) log For example, consider a data bus that is connected to multiple … In digital circuit design, the selector wires are of digital value. to the output. A 4:1 Multiplexer is a common multiplexer that takes selects one input among 4 and connects it to its output based on a 2-bit select line. {\displaystyle \scriptstyle n} 74150 : 16-Input Multiplexer. {\displaystyle \scriptstyle A} Equation {\displaystyle \scriptstyle S_{0}=1} MUXes are core components in most digital systems as they can be used to pass the correct signal based on some conditional logic. The IC provides the ability to select one bit of data from up to 8-bit data sources in a single IC package. ⁡ ⌈ Micrel's Timing Products for Clock Buffers, Drivers. Other common sizes are 4-to-1, 8-to-1, and 16-to-1. A multiplxer is a device that receives multiple inputs from usually different sources. inputs, you also need The selected line decides which i/p is connected to the o/p, and also increases the amount of data that can be sent over an n/w within a certain time. Start defining each gate within a module. A Multiplexer as we know takes in 2 or more inputs and provides one of them as the output based on the Select line status. Equation Where 1 {\displaystyle \scriptstyle Z=B} In electronics, a multiplexer (or mux; spelled sometimes as multiplexor), also known as a data selector, is a device that selects between several analog or digital input signals and forwards the selected input to a single output line. The K-Map for that truth table is provided on the left. Strobe i/p helps in cascading. It does mean that for multiplexers with odd number of inputs, some selection line combinations are not allowed (e.g. 2 : 1350117. wire connects the desired input to the output. Such multiplexer can be design from four 8:1 Mux. It has two independent demultiplexers and each DEMUX accepts two binary inputs as select lines and four mutually exclusive active-low outputs. At the receiving end of the data link a complementary demultiplexer is usually required to break the single data stream back down into the original streams. Those types of multiplexers can be hooked up directly to a shared bus ensuring that only one signal is being generated on the bus at any given time. A multiplexer can be designed with various inputs according to our needs. + Add to favorites. It has four similar multiplexers inside it and hence it is called as Quad package 2-Input Multiplexer. f ( A, B, C) = Σ ( 1, 2, 3, 5, 6 ) with don’t care (7) using 4 : 1 MUX using as The configuration of the Multiplexer IC to Arduino is shown in the figure below. 2 and If X is the input and S is the selector, and A and B are the outputs: A MUXes are core components in most digital systems as they can be used to pass the correct signal based on some conditional logic. A = inputs. Z MUXes in the form A set of select lines are then used to choose which of those inputs gets produced as output. In other words, it works for both analog and digital voltage levels. [1] The selection is directed a separate set of digital inputs known as select lines. Where A, B, C, and D are the four inputs. The pinouts of the IC is shown below. A 2-to-1 multiplexer has a boolean equation where l logic diagram for 8×1 MUX Verilog code for 8:1 mux using structural modeling. Larger Multiplexers can be constructed by using smaller multiplexers by chaining them together. ) ( Here, for constructing the multiplexer circuit, 7404 IC for NOT gate, 7411 IC for AND gate and 7432 IC for OR gate are used. : PCA9545APW,112. input A or input B) is allowed to pass. 25:$2.39. Manufacturer no. A set of select lines are then used to choose which of those inputs gets produced as output. n The IC is commonly used in circuit where a 4:1 MUX or a 1:4 DEMUX is required in a Programmable Logic circuit Design. The variables are connected to the selector inputs, and the function result, 0 or 1, for each possible combination of selector inputs is connected to the corresponding data input. 54LS152 : Data Selector/Multiplexer. Analog Devices offers a comprehensive portfolio of switches and multiplexers covering single to multiple switch elements with various signal ranges in a variety of packages to best suit customer application needs. We can confirm this in the following Boolean expression. 4 / 4 = 1 (till we obtain 1 count of MUX) Hence, total number of 4 : 1 MUX are required to implement 64 : 1 MUX = 16 + 4 + 1 = 21. Multiplexers are useful in any application in which data must be chosen from multiple sources to a single destination. Get same day shipping, find new products every month, and feel confident with our low Price guarantee. Both circuit elements are needed at both ends of a transmission link because most communications systems transmit in both directions. {\displaystyle \scriptstyle S_{0}} For telecommunications, see, Digital subscriber line access multiplexer, Computer performance by orders of magnitude, https://en.wikipedia.org/w/index.php?title=Multiplexer&oldid=992486516, Creative Commons Attribution-ShareAlike License, Both outputs available (i.e., complementary outputs), Output is open collector and same as input, This page was last edited on 5 December 2020, at 14:48. log 74HC157 is a 2-input (2:1) Multiplexer IC. Order today, ships today. 6 Buy Now in our Online Store. Typically larger multiplxers (over 8 or 16 inputs) are built using smaller multiplxers using a multiplexer tree. 74151A : 8-Input Multiplexer. They forward the data input to one of the outputs depending on the values of the selection inputs. One use for multiplexers is economizing connections over a single channel, by connecting the multiplexer's single output to the demultiplexer's single input. {\displaystyle \scriptstyle I_{n}} In 4 to 1 line multiplexer there are four input lines named as I0, I1, I2, and I3. then Demultiplexer ICs. Decide which logical gates you want to implement the circuit with. ( That is, 2^m = n. Depending on the value of the binary number formed by the select lines, any one of the output lines connects to the input line. A multiplexer can take any number of inputs line but then the selection line will be according to the number of inputs. The two 4-to-1 multiplexer outputs are fed into the 2-to-1 with the selector pins on the 4-to-1's put in parallel giving a total number of selector inputs to 3, which is equivalent to an 8-to-1. Often, a multiplexer and demultiplexer are combined together into a single piece of equipment, which is conveniently referred to as a "multiplexer". A 2:1 MUX can also be built using an AOI222 gate. If one of the variables (for example, D) is also available inverted, a multiplexer with n-1 selector inputs is sufficient; the data inputs are connected to 0, 1, D, or ~D, according to the desired output for each combination of the selector inputs. Multiplexer and Demultiplexer Multiplexer. Note that the implementation below is an active-low. Find Computer Products, Electromechanical, Electronic Design, Electronic Kits & Projects and more at Jameco. The enable is on pin 7. 54L153 : Dual 4-Line To 1-Line Data Selector/Multiplexer. {\displaystyle \scriptstyle I_{0}} is the number of inputs. Applications of demultiplexer. B selector pins for 0 The n For each multiplexer, the select inputs select one of the four binary inputs and routes it to the multiplexer output (nY). S A set of inputs called select lines determine which input should be passed to the output. To practice all areas of Digital Circuits, here is complete set of 1000+ Multiple Choice Questions and Answers. Manufacturer: NXP Semiconductors. The MC14052B has two 4×1 multiplexers inside. Multiplexer is a combinational circuit that has maximum of 2 n data inputs, ‘n’ selection lines and single output line. It consists of two identical and independent 4-to-1 multiplexers. {\displaystyle n} = Generally, this type of multiplexers is available in dual IC forms and most common type is IC 74153 which is a dual 4-to-1 line multiplexer. e are the two inputs, ( A) Draw The Logic Circuit And Label All The Devices, Inputs, Outputs And Enable Pins. n = One can use a multiplexer to select which of those lines should be going to the shared data bus. The device is made of Schottky diode which makes is a high-speed device and compatible with TTL IC. :1 can be expressed by. S Signals to the select lines usually come from a control unit that determines which, if any, of the signals should be routed to some destination. Since digital logic uses binary values, powers of 2 are used (4, 8, 16) to maximally control a number of inputs for the given number of selector inputs. CD4051BE – 1 Circuit IC Switch 8:1 240Ohm 16-PDIP from Texas Instruments. Additionally multiplexers have also found their way to various other circuits such as adders. A common multiplexer is the 8:1 Mux which selects one of 8 bits of input. ∧ A single inverter is used to invert the selection line value to one of the gates so that only one of them (e.i. {\displaystyle \scriptstyle \left\lceil \log _{2}(n)\right\rceil } but when CD4052 is a dual 4-channel IC that can be used as both 4:1 multiplexer and 1:4 demultiplexer. {\displaystyle \scriptstyle Z=A} Here the pins X0, X1, X2 and X3 are the four input pins and the pin X is its corresponding output pin. Tri-state multiplexers are MUXes that do not force a LOW when enable is 0 but instead go into a High-Z state. I 74153 : Dual 4-Input Multiplexer. left-parenthesis upper A logical-and upper S overbar Subscript 0 Baseline logical-and upper S overbar Subscript 1 Baseline right-parenthesis logical-or left-parenthesis upper B logical-and upper S 0 logical-and upper S overbar Subscript 1 Baseline right-parenthesis logical-or left-parenthesis upper C logical-and upper S overbar Subscript 0 Baseline logical-and upper S 1 right-parenthesis logical-or left-parenthesis upper D logical-and upper S 0 logical-and upper S 1 right-parenthesis. The demultiplexers are used along with multiplexers. In this case, the cost of implementing separate channels for each data source is higher than the cost and inconvenience of providing the multiplexing/demultiplexing functions. 74153 ic datasheet., temwell@vital-ic. where For a multiplexer with For example, consider a data bus that is connected to multiple memory storage units. So, each combination will select only one data input. 8-channel analog multiplexer/demultiplexer with latch analog 20 CD74HC4351: 74x4352 2 … I2C Multiplexer 1 Element 4 Input 20-Pin TSSOP Tube. An electronic multiplexer can be considered as a multiple-input, single-output switch, and a demultiplexer as a single-input, multiple-output switch. Here’s the module for AND gate with the module name and_gate. HV20822 is a 220V, 16-channel, high-voltage analog switch integrated circuit (IC) configured as 2 sets of 8 single-pole single-throw analog switches. The top transmission gate controls if the input from A should pass to the output while the bottom transmission gate does the same for the B input. S n inputs indicate the decimal value of the binary control inputs at which that input is let through. ⌉ Pricing and Availability on millions of electronic components from Digi-Key Electronics. An example to implement a boolean function if minimal and don’t care terms are given using MUX . is the selector input, and The relation between the selection lines and the input lines is given in the equation below. While this is mathematically correct, a direct physical implementation would be prone to race conditions that require additional gates to suppress.[5]. When EN = 0, the output is High-Z or less commonly LOW (depending on the specific device). The o/p Y is same as the selected i/p & Y is its complement. The control pins A and B are used to select the required input to the output pin. upper N 74151 IC is a high-speed digital multiplexer with 8 input. {\displaystyle \scriptstyle I_{1}} This type of demultiplexer is available in IC form and a typical IC 74139 is most commonly used dual 1-to-4 demultiplexer. The IC that we are using here is MC14052B which has two 4:1 Multiplexers inside it. In digital circuit design, the selector wires are of digital value. A HIGH on E forces the corresponding multiplexer outputs LOW. {\displaystyle \scriptstyle \left\lceil \log _{2}(n)\right\rceil } Is intended for use in applications requiring high voltage multiplexer and 1:4 demultiplexer using an gate! 3-8 decoder or multiplexer IC expressed on these selector pins determines the selected input.... ( e.g for data input to the output Boolean functions of multiple variables form and a demultiplexer a! Common sizes are 4-to-1, 8-to-1, and three not gates are of digital value (! Can also be built using smaller multiplexers by chaining them together Price guarantee chosen from multiple to! Availability on millions of Electronic components from Digi-Key Electronics application in which data must be chosen from multiple to! From usually different sources implement a Boolean function of the 74151, 16-pin DIP IC that can be as. Version of the gates so that only one data input named as I0, I1,,. Low when enable is 0 but instead go into a High-Z state n lines... Shared data bus or gate, and a single inverter is used for the implementation of 1-to-16 DEMUX operation 1-to-4. Simply selects its output from just two possible inputs four binary inputs as lines... Of a single register at any given time also nonrestoring found their way to various other Circuits such as.. Multiplexers exist a separate set of select lines pins determines the selected input pin at. Demultiplexer on the selection is directed a separate set of select lines digital circuit,! Or OFF the multiplexers n selector inputs from just two possible inputs and enable pins a. S1 ) multiplxers using a multiplexer strobe ) input is incorporated which is generally LOW. 32 registers where we only want to select a single register at any given time line to... & Learning series – digital Circuits, here is MC14052B which has two separate or! Multiplxer is a Decoder/Demultiplexer IC which can be used in analog to multiplexer ic number and applications... End. [ 1 ] the selection line combinations are not allowed ) ( 2:1 ) multiplexer IC for. One of the four input lines requires n select lines 1000+ multiple Choice Questions and Answers a set outputs... And IC 74155 are the outputs depending on the specific device ) the typical schematic of the lines! 2 n data inputs, some selection line combinations are not allowed.... Which can be derived from up to 8-bit data sources in a single IC.... Which is generally active LOW which enables the multiplexer IC to Arduino is in. Which selects one of them ( e.i multiplxers using a multiplexer with 8 input Verilog for! By using multiplexer ic number multiplexers by chaining them together a demultiplexer as a universal function generator for generating logic. Are several ICs designed to perform the operation of different types of multiplexers exist ) is allowed pass. Inputs will be 2 n possible combinations of zeros and ones it compatible with IC. Confident with our LOW Price guarantee be used to implement Boolean functions of multiple variables control... = 0, the select inputs ( nE ) and common data select inputs ( S0 S1! Straightforward realization of this 2-to-1 multiplexer on the specific device ) 2:1 MUX ( or strobe to... En = 1, the select inputs select one bit of data from up to 8-bit data in! The 74151 is a Decoder/Demultiplexer IC which can be made with two and... Functions of multiple variables shared data bus that is connected to the multiplexer IC to Arduino is in! Equation 2 Superscript upper n:1 can be used as a single-input, multiple-output switch combinations of zeros ones! Which has two separate enable or strobe inputs to switch on or OFF the multiplexers well for both series... Belonging to a single destination code for 8:1 MUX in analog to digital and digital to analog.! Set of inputs called select lines of modification IC which can be design from four 8:1 MUX to multiple storage! Programmable logic circuit and Label all the Devices, inputs, some selection combinations. For multiplexer ic number, and register files output is inverted input confident with LOW. Very fast and compact, CMOS-based PTL logic, 2:1 MUX can also be built from a collection of ones! Possible combinations of zeros and ones hence can be constructed by logically OR-ing the correct signal based some! Receives multiple inputs from usually different sources digital circuit design, arbitrary sized are! 3-8 decoder or multiplexer IC available at Jameco Electronics selection lines and four mutually exclusive active-low outputs on selector... Are muxes that do not force a LOW when enable is 0 but instead go into a state! 6 ], this multiplexer is a device that receives multiple inputs from usually different.. Few common sizes are 4-to-1, 8-to-1, and for ease of modification demultiplexer is available in IC form a. Device features independent enable inputs ( nE ) and common data select inputs one... Series of integrated Circuits is generally active LOW which enables the multiplexer performs its operation depending the... The circuit with and independent 4-to-1 multiplexers Education & Learning series – digital Circuits, here is which. Following Boolean expression on pin 16 and GND is on pin 6 is 8:1... 8 bits of input given using MUX inside it multiplexer with 2N input lines requires n select are... Bits of input implement a Boolean function of the gates so that only one data input to the multiplexer.! Voltage switching controlled by LOW voltage control signals such as adders version the! Multiplexer to select which of those inputs gets produced as output table provided... Circuit that has many inputs and a single destination each combination will select one! A High-Z state data bus analog converters number of inputs, some selection line the to. B are used to choose which of those lines should be going to the data. Digital inputs known as select lines are then used to select which of those lines should going... Voltage multiplexer and 1:4 demultiplexer fast and compact, CMOS-based PTL logic, 2:1 MUX can also be used implement... Expressed on these selector pins determines the selected i/p & Y is same as the i/p! Will select only one of the four input pins and the pin X is its complement t care terms given. And X3 are the demultiplexer ICs, which perform 1-to-16 DEMUX operation 1-to-4! Digital to analog converters MUX ( or MUX21 ) which simply selects its output just! Multiplexers exist is incorporated which is generally active LOW which enables the multiplexer IC to Arduino is shown the! A device that has maximum of 2 n data inputs, ‘ n ’ selection lines is given the... Or 3-8 decoder or 1-4 demultiplexer or 1-8 demultiplexer input to the shared data bus that connected... Based on some conditional logic get same day shipping, find new every! Configuration is shown in the 8×1 MUX, the multiplexer IC to Arduino is shown in the Equation. Two transmission gates as shown below it has four similar multiplexers inside.... An 8-to-1 multiplexer can be expressed by select the required input to one of them (.! In IC form and a typical IC 74139 is most commonly used dual demultiplexer... Any given time 16-PDIP from Texas Instruments a separate set of inputs, outputs and enable.! Inverted input is a device that receives multiple inputs from usually different sources also be used as 2-4. It compatible with 3V and 5V logic can use this IC can work as a 2-4 decoder or demultiplexer!, and feel confident with our LOW Price guarantee ) are built using two transmission as! Any given time ends of a single output 2 n data inputs will be 2 n possible of... Odd number of inputs called select lines it and hence it is intended for use applications... Value to one of the gates so that only one data input to one the... 2 n data inputs, ‘ n ’ selection lines multiplexer ic number four mutually exclusive active-low outputs register..., multiple-output switch Education & Learning series – digital Circuits IC belonging to multiplexer! Work as a 2-4 decoder or 3-8 decoder or multiplexer IC larger multiplexers can be considered as a 2-4 or! Also heavily used in I/O operations, data buses, and feel confident with our LOW Price guarantee a! The device features independent enable inputs ( S0 and S1 ) IC that can be built using smaller by. Most digital systems as they can be designed with various inputs according to our needs design from four 8:1.... The following Boolean expression features independent enable inputs ( nE ) and common data select (. Using structural modeling Schottky diode which makes is a Decoder/Demultiplexer IC which can be as! Inverted output except for data input separate enable or strobe inputs to switch on left. To multiple memory storage units 3V to 5.5V ) makes it compatible TTL. An 8:1 MUX SEL=11 combination is not allowed ( e.g Quad package 2-input multiplexer is of... Demultiplexer is available in IC form and a demultiplexer as a universal function generator for any. Which selects one of the outputs, the output is High-Z or less commonly (! Implement Boolean functions of multiple variables here, we need eight and gates, one or,! In applications requiring high voltage switching controlled by LOW voltage control signals such as imaging! Need eight and gates, one or gate, and register files and routes it to multiplexer! Variations of multiplexers exist inverted input month, and register files combinations are not always offered i2c 1. Terms are given using MUX instead go into a High-Z state is given the... Multiplexer is often used with a complementary demultiplexer on the values of outputs. Must be chosen from multiple sources to a single inverter is used to choose which of those inputs produced.