IC 74155 PDF

Description: The NTE is a monolithic TTL circuit featuring dual 1-line-to line demultiplexers with indi- vidual strobes and common binary-address inputs. DUAL 2-line TO 4-line Decoders/demultiplexers. Multiplexers, Demultiplexer Integrated Circuit (ics); IC USB SWITCH SP4T 25DSBGA Specifications. , Dual 2/4 Demultiplexer, 74 Standard TTL Series. Futurlec Part Number, Department, Integrated Circuits. Category, 74 Series.

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Disconnect your system from the internet. Click on it for a larger view. My memory is a bit faulty but I do recall facing problems in the simulation if the above is not properly specified.

Both are set equal at 0. This may not be the conventional method, but it works for ci.

Dual 2 to 4 Decoder/Demultiplexer IC ( 74155 )

Only Screenshots I could manage. When you place the various components Gates, ICs, etc onto the page.

Your circuit will not simulate properly. Hence, I don’t use this type anymore. My memory is a bit faulty but I do recall facing problems in the simulation.

Once you’ve got the truth table and the IC Number of the 4: How do I tell what value the enable wants? Move the gate or component around and if the wires move with it, It’s connected. I understand that it acts as an enable. Note the last, C0 is the select input m or Input Carry. P-3 Tri State Buffer and Bus. I had 71455 problems pasting images in the CA Lab during the first few classes. A, B is same. That said, I say it’s easier if I just mention the ci used: I’ve explained it here.


Caution 4 This, not so important. So, instructions to start a project are unfortunately not aided with screenshots. Without pictures, I really don’t see the point in explaining how to create a project. A, B are the Inputs. Tri State Buffer Bus. Here, it’s G or G Dash. These control the duration of the high and low cycles of the clock.

Changing the Delay In order to distinguish between the various input clock signals, I initially used delay instead of changing the ontime and offtime.

Enjoy The Electronics: Demultiplexers

I’ve classified them in the ways I’ve used them. P-2 Shifter posted Nov 4,2: Check that in the following way.

However, the interior of the IC is designed as follows: We’ve done this countless times in so many different ways. Basically, inverting all the values. Use the clock as M to control whether it adds or not.

Dual 2 to 4 Decoder/Demultiplexer IC ( )

Often the wires seem like they are connected, but they’re not. Let the picture do the talking. Take a good look at the circuit: And Full Screen Screenshots: I understand it from the IC.


The only thing that continues to confuse me is the truth table.

I haven’t performed this on my own yet, but assume my theory here is right. See it as a sign of doom. Trust me, it helps. So, I’ll just mention a few mistakes I made which I hope I won’t make again.

74155 – 74155 Dual 2/4 Demultiplexer

EA ‘ should be supplied 0. C is the data. We are using a Trial Version of OrCad.

But something I’ve repeatedly faced. This causes the truth table to be as given below. When using AND gates to make a decoder, the truth table is as follows: If you take them from elsewhere, a green circle is seen next to each 7415. Make sure your connecting wires are When there are many clock inputs required, inorder to see my output clearly.