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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A common multiplexer is the 8: Various multiplexers are available in discrete chips as well for both series and series. A single inverter is used 774151 invert the selection line value to one of the gates so that only one of them e.

A truth table is provided on the right.

Multiplexer (MUX) – WikiChip

A set of inputs called select lines determine which input should be passed to the output. One can use a multiplexer to select which of those lines should be going to the shared data bus.

Typically larger multiplxers over 8 or 16 inputs are built using smaller multiplxers using a multiplexer tree. There are many way to construct 7151 4: Even in ASIC design, arbitrary sized multiplexers are not always offered.

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Pins 5 and 6 are the outputs, the output on pin 6 is the inverted version of the output on pin 5.

IC pinout diagram – Integrated Circuits

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.

Additionally multiplexers have also found their way to various other circuits such as adders. A set of select lines are then used to choose ci of those inputs gets produced as output. While smaller overall, this multiplexer is also nonrestoring. A multiplexer with 2 N input lines requires N select lines. A 71451 is a device that receives multiple inputs from usually different sources.

An enable input makes the multiplexer operate. Its selection lines is therefore made of a single bit. MUXes are core components in most digital systems as they can be used to pass the correct signal based on some conditional logic. Many different variations of multiplexers ix. Privacy policy About WikiChip Disclaimers. The enable is on pin 7. This section is empty; you can help add the missing info by editing this page.

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MULTIPLEXER IC 74151

Multiplexers are useful in any application in which data must be chosen from multiple sources to a single destination. This page was last modified on 18 Novemberat Such multiplexer can be design from four 8: Note that the iic below is an active-low.

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.

MUX with an SR latch.

The simplest multiplexer is the 2: It does mean that for multiplexers with odd number of inputs, some selection line combinations are not allowed e. For a multiplexer with Equation upper N inputs, you also need Equation left ceiling log Subscript 2 Baseline left-parenthesis upper N right-parenthesis right ceiling selection lines.

From there the sum of minterms and the logic function for a 2: For example, consider a data bus that is connected to multiple memory storage 7411.

Where Equation m Subscript k is the kth minterm of the variable. The K-Map for that truth table is provided on the left.