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The 74LS138 is a 3-to-8 line decoder that takes 3 input binary signals and activates one of eight output lines based on those inputs. It features three select inputs (A0, A1, A2) that determine which output (Y0 to Y7) will be low (active), while all other outputs remain high (inactive). The decoder also has enable inputs to control its operation; if the enables are not activated, none of the outputs will be activated. This device is commonly used in memory address decoding and data routing applications.
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Why are inverters on the output of the 74LS138 CHIP?
In high-performance memory systems these decoders can be used to minimize the effects of system decoding. When used with high-speed memories, the delay times of these decoders are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. The DM74LS138 decodes one-of-eight lines, based upon the conditions at the three binary select inputs and the three enable inputs. Two active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented with no external inverters, and a 32-line decoder requires only one inverter.
How to connect 74ls138 with 7 segment?
We cannot connect the 74ls138 straight with a seven segment display; for that we need a 7447(7 segment driver).
What is ahb decoder?
the decoder is an AMBA system is used to perform a centralized address decoding functions, which improves the portability of peripherals , by making them independent of the system memory map...
What is the function of printer memory?
what is function of printer memory
What is Decoder IC 74LS138?
It's an IC where the input is a 3 bit binary number. The output has 8 pins, one for each of the possible input values. For example, if the input is 000, the output pin called Y0 will the activated because that cooresponds to zero while all other pins will stay the same.
How do you decode the letter in Club Penguin?
If you are a secret agent during a mission you have a 'Decoder'. If screenprint that (Function+Del on a PC) then paste it onto word you will have your own club penguin decoder.
3Explain the function of OS in memory management?
function of memory management
What is the function of the WR signal on the memory chip?
what is the function of the wr signal on memory chip
What is the function ponters?
The memory address of a function.
What does ram memory do?
the function of a memory ram is to store memory that can be accessed later on.
What are real life applications of encoder and decoder?
Decoding is necessary in applications such as data multiplexing, 7 segment display and memory address decoding.
Where is the decoder on Club Penguin?
To get the decoder you have to be a Secret Agent. If you are in the handbook there is the decoder which is very useful.
