74151 IC PDF

IC Figure below shows the 8-to-1 multiplexer Integrated circuit of TTL family This Integrated circuit has active LOW ENABLE input and gives. Texas Instruments [ KB ]; Data Sheet (current) [88 KB ]; Fairchild Semiconductors [58 KB ]; Data Sheet (current) [ KB ] 8-Input Multiplexer IC. I3, 1 •, 16, Vcc. I2, 2, 15, I4. I1, 3, 14, I5. I0, 4, 13, I6. Y, 5, 12, I7. Y, 6, 11, S0. E, 7, 10, S1. GND, 8, 9, S2. Pin, Symbol, Description. 1, I3, multiplexer input.

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Multiplexer

Typically larger multiplxers over 8 or 16 inputs are built using smaller multiplxers using a multiplexer tree. Multiplexer Typical Symbol 2: Complementary outputs, High-Z Enable. Privacy policy About WikiChip Disclaimers. 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.

Note that the 7411 below is an active-low.

MULTIPLEXER IC 74151

A set of inputs called select lines determine which input should be passed to the output. 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.

Multiplexers generally only come in a few common sizes. Where Equation m Subscript k is the kth minterm of the variable. 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.

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Large multiplexers can always be built from a collection of smaller ones. Such multiplexer can be design from four 8: Many different variations of multiplexers exist. It’s often desirable to add an enable or strobe input EN to a multiplexer. 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.

MULTIPLEXER IC | sginfobmt

An enable input makes the multiplexer operate. Various multiplexers are available in discrete chips as well for both series and series.

The enable is on pin 7. Additionally multiplexers have also found their way to various other circuits such as adders. A set of select lines are then used to choose which of those inputs gets produced as output. From there the sum of minterms and the logic function for a 2: Pins 5 and 6 are the outputs, the output on pin 6 is the inverted version of the output on pin 5. Output same as input, High-Z Enable. It does mean that for multiplexers with odd number of inputs, some selection line combinations are not allowed e.

The K-Map for that truth table is provided on the ci.

741151 Consider a register file with 32 registers where we only want to select a single register at any given time. MUXes are core components in most digital systems as they can be used to pass the correct signal based on some conditional logic. A multiplxer is a device that receives multiple inputs from usually different sources.

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There are many way to construct a 4: Retrieved from ” https: Even in ASIC design, arbitrary sized multiplexers are not always offered. MUX with an SR latch. One can use a multiplexer to select which of those lines ix be going to the shared data bus.

A multiplexer with 2 Oc input lines requires N select lines. This section is empty; you can help add the missing info by editing this page. For example, consider a data bus that is connected to multiple memory storage units. A single inverter is used to invert the selection line value to one of the gates so that only one of them e. A common multiplexer is the 8: While smaller overall, this multiplexer is also nonrestoring.

Multiplexer | Electronics Tutorial

For a multiplexer with Equation upper N inputs, you also need Equation left ceiling id Subscript 2 Baseline left-parenthesis upper N right-parenthesis right ceiling selection lines. Multiplexers are useful in any application in which data must be chosen from multiple sources to a single destination.

Vcc is on pin 16 and GND is on pin 8. Its selection lines is therefore made of a single bit.

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