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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Without pictures, I really don’t see the point in explaining how to create a project. So, I’ll just mention a few mistakes I made which I hope I won’t make again. Your circuit will not simulate properly. Make sure your connecting wires are Trust me, it helps. Caution 4 This, not so important. When you place the various components Gates, ICs, etc onto the page. EA ‘ should be supplied 0.
I’ve explained it here.
So, instructions to start a project are unfortunately not aided with screenshots. P-5 Decoders posted Nov 4,2: Once you’ve got the truth table and the IC Number of the 4: Let the picture do the talking. How do I tell what value the enable wants?
When there are many clock inputs required, inorder to see my output clearly. We’ve done this countless times in so many different ways. These control the duration of the high and low cycles of the clock. Use the clock as M to control whether it adds or not. C is the data. I had some problems pasting images in the CA Lab during the first few classes.
A, B is same. Changing the Delay In order to distinguish between the various input clock signals, I initially used delay instead of changing the ontime and offtime. Note the last, C0 is the select input m or Input Carry. I understand it from the IC.
P-3 Tri State Buffer and Bus. This may not be the conventional method, but it works for me. P-2 Shifter posted Nov 4,2: That said, I say it’s easier if I just mention the functions used: I’ve classified them in the ways I’ve used them.
Here, it’s G or G Dash.
This causes the truth table to be as given below. When using AND gates to make a decoder, the truth table is as follows: We are using a Trial Version of OrCad.
I understand that it acts as an enable. The only thing that continues to confuse me is the truth table.
CA LAB – Mad Monkey Science
And Full Screen Screenshots: Basically, inverting all the values. Often the wires seem like they are connected, but they’re not. But something I’ve repeatedly faced. Click on it for a larger view. Hence, I don’t use this type anymore.
Dual 2 to 4 Decoder/Demultiplexer IC ( 74155 )
My memory is a bit faulty but I do recall facing problems in the simulation if the above is not properly specified. Disconnect your system from the internet.
Both are set equal at 0. However, the interior of the IC is designed as follows: In order to distinguish between the various input clock signals, I initially used delay instead of 71455 the ontime and offtime.
Check that in the following way. Tri State Buffer Bus. I haven’t performed this on my own yet, but assume my theory here is right. A, B are the Inputs. Only Screenshots I could manage.