3 to 8 decoder truth table with enable Solved 1 A Complete The 3 To 8 Decoder Schematic Chegg Com. The three inputs are decoded into eight outputs. 0]. Truth Table For A 5 31 Thermometer Decoder Ilrating The Employed Scientific Diagram. Fig 3: Logic Diagram of 3:8 decoder That is on setting the two active low and one active high enable inputs to proper level, one can verify that one and only one of the eight active low outputs is asserted based on the values assigned to three select input. It decodes the original signal from encoded input signal. 0] for the code input and E for the enable input. 4. The below figure shows the block diagram of an 8-to-1 multiplexer with enable input that can enable or disable the multiplexer. Decoder A generates outputs Dd7,Dd6,Dd5,Dd4. Unlock. ‘E’ is the enable pin. A 3 to 8 decoder circuit has various applications in digital electronics, such as address decoding in memory systems, data demultiplexing in communication systems, and control signal generation in 3 to 8 Decoder is covered by the following Timestamps:0:00 - Digital Electronics - Combinational Circuits0:12 - Decoder0:31 - Block Diagram of 3 to 8 Decode For a 3-to-8 decoder with active high outputs and an active high enable line (EN): a. Fill its Truth Table. Verilog Write VHDL code for 3:8 decoder with active low truth table. Draw a logic diagram constructing a 3 × 8 decoder with active low enable, using a pair of 2 × 4 decoders. youtube. For active- low outputs, NAND gates are used. In this article we will talk about the Decoder itself, we will have a look at the 3 to 8 decoder, 3 to 8 line decoder designing steps, a technique to simplify the Boolean function, and in the end, we will See more In this article, we’ll be going to design 3 to 8 decoder step by step. In addition to input pins, the decoder has a enable pin. The truth table for a 3 to 8 decoder shows the relationship between the input and output values, and is used to design and analyze the circuit. Answer the following questions: a) Implement As you know, a decoder asserts its output line based on the input. the two squares are two 3x8 decoders with enable lines. Implementation using decoderFollow for placement & career guidance: https://www. It allows 3 input lines to selectively enable one of the 8 output lines. Q. Implement 3 to 8 decoder with enable input (Draw Circuit Diagram and truth table). Let’s look at the logic diagram and truth table to understand this better. The circuit is designed with AND and NAND logic gates. 5 to +6. Answer. 5 V VOUT DC Output Voltage –0. The second 2:4 decoder Here we discuss the truth table of 3:8 line decoder. These Decoders are often used in IC packages to complexity of the circuit. Now we know possible outputs for 3 inputs, so construct 3 to 8 decoder, having 3 In addition to input pins, the decoder has a enable pin. Decoder In Digital Electronics Javatpoint. From the truth table, we can see that. Decoders have n inputs and 2^n outputs, with each output corresponding to a possible input combination. The circuit is designed with AND and NAND logic gates. Figure 3. I 1. Enable input is provided to activate the decoded output depends on the input I'm working on an assignment where I need to draw a block diagram and the gate-level circuit of a 3-into-8 decoder with negative active inputs, a positive active enable and positive active outputs. Not the question you’re looking for? Truth Table of 8:3 encoder VERILOG CODE : Structural Model Data Flow Model module prior_otb_enco(DOUT, D); // Active high enable begin dout = 3'bZZZ; // Initializing dout to high Impedance end else begin Thus the OUTPUT of 8 to 3 decoder (without and with priority) is verified by simulating the VERILOG HDL code. When the enable is true i. Now, it turns to construct the truth table for 2 to 4 decoder. Figure 2. It has 3 input lines and 8 output lines. What is the enable line function in a decoder? The truth table for the 8 to 3 encoder is as follows. The inputs to the 3×8 decoder circuit are Ad2,Ad1,Ad0. the Truth table is a division of all possible truth values returned by a logical expression. 2×4 digital decoder; Truth table of 2×4 decoder; Now we can write the Boolean function using the truth table: O 3 = E. Question: 3. Construct 3 To 8 Decoder With Truth Table And Logic Gates Programmerbay. Typical When the Enable Signal (E) is 1, one of the outputs is 1 and the rest corresponds to 0. Truth Table Now we shall write a VHDL program, compile it, simulate it, and get the output in a waveform. I hope you could point me out to it. Write the Boolean equations: e. What is the typical usage of Design a 3-to-8 decoder circuit with non-inverted outputs and a single active-high enable. Truth Table for 3-to-8 Decoder. The truth table for a 74138 is: Input Lines Output Lines; A2 A1 The decoder uses basic logic gates like AND, OR, and NOT arranged in specific ways to decode the inputs. The decoder is a combinational circuit consists of ‘n’ no of input lines and ‘2^n’ no of output lines. A Decoder with Enable input can function as a MM74HC138 Truth Table H = HIGH Level, L = LOW Level, X = don’t care Note 1: G2 = G2A+G2B Logic Diagram Inputs Outputs Enable Select G1 G27) 6YC5Y 14Y3YBe2 1Y0YAYt Yo N (X H X X X H HHH HHH H L X X X X H HHH HHH H H L L L L L HHH HHH H H L L L HH L H H HHH H MM74HC138 3-to-8 Line Decoder What is Binary Decoder? A digital combinational circuit used for converting “n” bits of binary number into a combination of “2­ n ” or less unique and separate output lines is called digital decoder or binary decoder. 4 shows the 4 x 16 decoder using two 3 x 8 decoders. ; Output Logic: For each input Verify the output waveform of the program (digital circuit) with the truth table of these encoder and decoder circuits; 3×8 Decoder circuit. 15. The truth table summarizes the functionality of the 74138 3-to-8 line decoder: 2-to-4 line decoder The block diagram of 2 to 4 line decoder is shown in the fig. When Enable input is zero the decod View the full answer. Decoder: a. It features a 3-to-8 input-to-output setup, optimized for high-performance memory decoding and data routing, with minimal propagation delay. 3 to 8 Line Decoder and Truth Table. 5 V IIK, IOK Clamp Diode Current ±20 mA IOUT DC Output Current, per Pin ±25 mA ICC DC VCC or GND Current, per Pin ±50 mA TSTG Storage For a 3-to-8 decoder with active high outputs and an active high enable line (EN): List the truth table: Write the Boolean equations: Sketch the input and output timing waveforms for all input combinations. 74LS138 is a member from ‘74xx’family of TTL logic gates. The inputs Ip0 to Ip2 are the binary input lines, and the outputs Op0 to Op7 represent the eight output lines. The device features three enable inputs (E1, E2 and E3). i. The truth table, logic diagram, Decoder expansion. For example, to select output Y5 In the 2:4 decoder, we have 2 input lines and 4 output lines. Logic Diagram and Truth Table. E input can be considered as the control input. Integrates 3-enable pins for simplifying cascading; Security of ESD; let us understand the following truth table. The decoder of the figure has one enable input, E. Truth table of The decoder function is controlled by using an enable signal, EN. List the truth table: b. Function table H = HIGH voltage level; L = LOW voltage level; X The three distinct inputs, labeled as S0, S1, and S2, dictate the activation of one of the eight outputs—D0, D1, D2, D3, D4, D5, D6, and D7. • Fig. The outputs of decoder m1, m2, m4 and m7 are applied to OR gate as shown in figure to obtain the sum output. || 2. 5 V VIN DC Input Voltage –0. 1-Input: BUF, NOT 2-Input: AND, OR, XOR, NAND, NOR, XNOR The first step is to write the truth tables for all eight of these gates. Solved The 74ls138 Is A 3 Decoders and Multiplexers Decoders A decoder is a circuit which has n inputs and 2 n outputs, and outputs 1 on the wire corresponding to the binary number represented by the inputs. Draw and simulate its logic circuit. here is the schematic that may help you. The 74X138 is a commercially available 3-to-8 decoder. ii. The main function of this IC is to decode otherwise demultiplex the applications. What does an enable line in a decoder used for? The 2 to 4 decoder is called a "2 to 4" decoder because it has two input lines (A and B) and four output lines (Y0, Y1, Y2, and Y3). Your solution’s ready to go! Our expert help has broken down your problem into an easy-to-learn solution you can count on. Examples of 2-to-4 and 3-to-8 decoders are provided along with their truth tables and circuit implementations Fig. E1-E3 are "Enable" inputs that must be set either HIGH or LOW for the decoder to work (according to the Truth-table diagram), Y0-Y7 are the 8 outputs, Vcc is the 3. Decoder- In this tutorial, you learn about the Decoder which is one of the most important topics in digital electronics. This enables the pin when negated, makes the circuit inactive. The lower my " silver play button unboxing " video *****https://youtu. Construct a 3-input-8-output binary decoder using NOT, AND and OR gates (without enable logic) Simple 3-8 Decoder / Demultiplexer Tutorial: This guide is intended for people new to electronics (like myself) who wants to understand how 238 decoders (demultiplexers) work. And this is 3-to-8 line decoder/demultiplexer; inverting Rev. (5 points) Construct a 5-to-32-line decoder with four 3-to-8-line decoders with enable and a 2-to-4 line decoder. 250 x 25 130 +120 - 250 Answer any two out of the following three questions (1 – 3): 1. onsemi. For a 3-to-8 decoder with high outputs and an active high enable line (EN): a) List the truth table: b) write the boolean equations: c) sketch the input and output timing waveforms for all input combinations. be/uupsbh5nmsulink of " binary addition ( how to add b Question: 1. Decoder with enable input can function as demultiplexer. 5 shows the arrangement for using two 74138 (3-to-8 decoder) ICs to obtain a 4-to-16 decoder. Here is what I did, Note that I What is the cost and critical path delay of a 3:8 decoder with an active low enable? Complete the following: Fill in the truth table for 𝑓(𝑎,𝑏,𝑐,𝑑)=∑𝑚(4,6,8,10,13,15). 8×1 Multiplexer Calculator. Demonstrate your simulation to the instructor. I 0. It allows for 8 unique combinations of the inputs to selectively enable one of the 8 outputs at a time. The logic diagram illustrating the configuration of the 3 to 8 line decoder is depicted below. 25: Construct a 5-to-32-line decoder with four 3-to-8-line decoders with enable and a 2-to- 4-line decoder. Decoder B generates outputs Dd3,Dd2,Dd1,Dd0. This enables The figure below shows the truth table of a 3-to-8 decoder. Ip0 to Ip2 are the binary input lines and the Op0 to Op7 are the eight output lines. Here, a structure of 3:8 line decoder is implemented using hardware level programming language VHDL( VHSIC Hardware Description Language). For a 3-to-8 decoder with high outputs and an. If you cant reduce the equation to a simpler one that only has two variables you need to use two 3:8 decoders and the MSB variable assign it to the enable of both decoders, connect it to the first decoder enable pin inverted and directly to the second decoder enable pin. com 3 ABSOLUTE MAXIMUM RATINGS (Note 2) Symbol Parameter Rating VCC Supply Voltage –0. Mean to say, If E equals to 0 then the decoder would be considered as disabled regardless of what inputs are, If E equals to 1 then the decoder would work as per inputs. For a 3-to-8 decoder with active high outputs and an active high enable line (EN a. com/@UCOv13 74x138 3-to-8 Decoder The 74x138 is a commercially available MSI 3-to-8 decoder whose gate-level circuit diagram and symbol are shown in Figure 7; its truth table is given in Table. Like the 74x139, the 74x138 has active-low outputs, and it has Question: 4/ Draw a logic diagram constructing a 3×8 decoder with active-low enable, using a pair of 2×4 decoders; also draw a truth table for the configuration. Understanding the Truth Table Question: Pre-Lab Design a 3-to-8 decoder circuit with non-inverted outputs and a single active-high enable using logic gates; show the appropriate truth table, minimization, and schematic of your design. Draw The Circuit Diagram For A 3 To 8 Decoder Sarthaks Econnect Largest Online Education Overview of 74138 3 to 8 Decoder. Logic symbol 001aag753 3 TO 8 DECODER ENABLE EXITING A0 1 A1 2 A2 3 E1 4 E2 5 E3 6 Y0 15 Y1 14 Y2 13 Y3 12 Y4 11 Y5 10 Y6 9 Y7 7 Fig. Thus when A 3 is 'LOW', the upper decoder is enabled and the lower decoder is disabled. A 3 to 8 line decoder has three input pins which are usually denoted as A, B and C. 3 to 8 line decoder circuit is also called a binary to an octal decoder. The Verilog code for 3:8 decoder with enable logic is given below. For a 3 to 8 decoder below, a) How many inputs are there including the enable control? b) How many outputs are there? c) Construct the truth table. written 5. It is also called as binary to octal decoder it takes a 3-bit binary input code and activates one of the 8(octal) outputs corresponding to that code. iii. Truth table explains the operations of a decoder. Question: 1. Functional diagram Table 3. , the corresponding input signal lines display the equivalent binary bit Question: Draw a logic diagram constructing a 3×8 decoder with active low enable, using a pair of 2×4 decoders. Enable input is provided to activate decoded output based on data inputs A, B, and C. system with binary codes. A and B are the two inputs where D through D are the four outputs. The output Y 2 is active (Low) when the input A is high and B is low. 5 to VCC + 0. The output Y 0 is active (Low) when both inputs A and B are low. To apply knowledge of the fundamental gates to create truth tables. Show transcribed image text There are 2 steps to solve this one. ; Truth Table: A truth table shows the output states of a decoder for every possible input combination. Function table H = HIGH voltage level; L This decoder circuit gives 8 logic outputs for 3 inputs and has a enable pin. Use block diagrams for the components. Construct a 3-input-8-output binary decoder using NOT, AND and OR gates (without enable logic) 4. It takes 3 binary inputs and activates one of the eight outputs. Previous question Next question. The decoder is enabled when E is equal to 1 and disabled when E is equal to 0. It is also The 74LS138 is a TTL logic gate IC designed for decoding and de-multiplexing applications. 3:8 decoder. For example, a 2-4 decoder might be drawn like this: and its truth table (again, really four truth tables, one for each output) is: Key learnings: Binary Decoder Definition: A binary decoder is a logic circuit that converts n binary inputs into 2^n unique outputs. I'm trying to implement a 4 to 16 decoder using 2 to 4 decoder and 3 to 8 decoder. Question: b) Draw a logic diagram constructing a 3x 8 decoder with active low enable, using a pair of 2 x 4 decoders. Pleas Question: For a 3-to-8 line decoder with active-low output and active-low Enable. I've drawn the This decoder can be used for decoding any 3-bit code to provide eight outputs, corresponding to eight different combinations of the input code. 10 — 26 February 2024 Product data sheet 1. I've drawn the block diagram, but before I draw the circuit, I wanted to do a truth table so that I made sure my logic was correct. I'm pretty confused, as I only know how to draw on using AND and Solved Textbook Solve Following Questions Chapter 3 P 178. ; Enable Pin: The decoder operates only when the enable pin is high; otherwise, all outputs are low. The number of output lines is determined by the number of input lines, following the formula: 2^n, where n is the number of input lines. Answer to 1. The table shows the truth table for 3 to 8 decoder. From Truth Table, it is clear that the first 2:4 decoder is active for EN = 1 and S2 = 0 and generates outputs y3, y2, y1, and y0. Engineering; Computer Science; Computer Science questions and answers; 1. Pdf Design The three distinct inputs, labeled as S0, S1, and S2, dictate the activation of one of the eight outputs—D0, D1, D2, D3, D4, D5, D6, and D7. The 74X138 3-to-8 Decoder. A decoder circuit takes multiple inputs and gives multiple outputs. Here is the Solution : Truth Table of 3:8 decoder with enable input. The truth table for the 3-to-8 decoder is shown in Figure 2. As a result, the single output is obtained at the output of the decoder. Lab Write a simulation test bench to test the decoder design from the pre-lab; make sure to simulate all possible input combinations. From the truth table, we can see the output of the 3:8 Decoder Decoders are digital circuits that convert coded inputs into multiple output lines. iv. Combine two or more small decoders with enable inputs to form a larger decoder e. (2 3 = 8) are needed to select one of the eight data bits. e. In addition, we provide ‘enable‘ to the input to ensure the decoder is functioning whenever enable is 1 and it is turned off when enable is 0. 9 years Architecture behavioral of decoder is signal Y 1 : std_logic_vector (7 down to 0) ; Begin Y1 < = “0111 111” So, for now, forget about the 3-to-8 decoder and learn how to implement each of the basic gates using only NAND and also only NOR gates. In simple words, Binary Decoder used to decode a Binary Codes and it is the reverse of Binary Encoders. Question: 4. General Combinational Logic Circuit Design: A museum has three rooms, each with a motion sensor (m0, ml, and m2) that outputs 1 when motion is detected. The outputs from the 3×8 decoder are Dd7,Dd6,Dd5,Dd4,Dd3,Dd2,Dd1,Dd0. Table of Contents. The 74138 is a 3 to 8 line decoder IC that converts 3 input bits into 8 output bits. For a 3 : 8 decoder, total number of input lines is 3 and total number of output lines is 8. Truth table for a 3×8 The truth table of a full adder is shown in Table1. Truth Table of 3 to 8 Decoder in Digital Electronics. simulate this circuit – Schematic created using CircuitLab. The three distinct inputs, labeled as S0, S1, and S2, dictate the activation of one of the eight outputs—D0, D1, D2, D3, D4, D5, D6, and D7. Decoder: a Show the truth table of a 3-input-8-output binary decoder (without enable logic) b. We also discuss the pin configuration of IC 74LS138 along with its truth table and inverted outputs with The three inverters provide the complement of the inputs, and each one of the eight AND gates generates one of the minterms. e. A binary code of n bits is capable of The logic diagram of a 3-to-8-line decoder is shown below. How To Design A 3 By 8 Decoder Using Only Two 2 4 Decoders With Enable Inputs Quora. A truth value is typically either true or false or 1 or 0. Figure 4. f. This is also called a 1 of 8 decoder since only one of eight output lines is HIGH for a particular Truth Table for 3-to-8 Decoder The truth table for the 3-to-8 decoder is shown in Figure 2. The chip is designed for decoding or de-multiplexing applications and comes with 3 inputs to 8 output setup. In the above tabular 3 1 1 1 0 0 0 1 Table 2: Truth table of 2-to-4 decoder with enable Example: 3-to-8 decoders In a three to eight decoder, there are three inputs and eight outputs, as shown in figure 5. (Op0 to Op7) as the input lines are selected based on different values of the enable signal (EN). What are the common logical operations represented in truth table? The common logical operations that can be represented in the truth table are AND, OR, NOT, NAND, NOR, XOR, XNOR. Discrete As an example, quantities consider of information the 3-to-8 are line represented decoder in circuit digital of Figure 3. Here are the basic concepts to understand its working: Binary Input in 3 to 8 Decoder. For a 3-to-8 decoder with active high outputs and an active high enable line (EN): a. The desired output is selected by applying the corresponding 3-bit input code according to the truth table. Using the information from above, implement f(a,b,c,d) using one 3:8 decoder with an you have to design a 4x16 decoder using two 3x8 decoders. The table shows the truth table for 3-to-8 decoder. Vhdl Tutorial 13 Design 3 8 Decoder And Encoder Using. Finely, we shall verify those output waveforms with the given truth table. The truth table is as follows: Table 2: Truth Table of 3:8 decoder . It uses all AND gates, and therefore, the outputs are active- high. The basic gates I am refering to are the one-input and symmetric two-input gates. Determine the simplest SOP solution for f(a,b,c,d) using K-maps. The most significant input bit A 3 is connected to E 1 ’ on the upper decoder (for D 0 to D 7) and to E 3 on the lower decoder (for D 8 to D 15). Step 1. How Is A Decoder Diffe From Multiplexer Write The Truth Table And Draw Logic Circuit Diagram For 3 To 8 Explain Its Working Sarthaks Econnect. Coa Decoders Javatpoint. Decoder as a De-Multiplexer. Decoder: Does the opposite—converts a coded input back into a larger set of outputs. Sketch the input and output timing waveforms for all I am trying to draw the logic diagram of a 3-to-8 decoder with an enable input using only NOR and NOT gates. Here is the Truth Table for 2 to 4 Decoder in Digital Electronics. Write a Verilog description for your design using structural modeling. What I did, I used 2x of 2-to-4 decoder and 1x 3-to-8 decoder. 3 to 8 line decoder circuit is also called as The output lines have buffers/drivers which are enabled in groups using the Output Enable pins G1, G2A and G2B. A decoder circuit takes binary data of ‘n’ inputs into ‘2^n’ unique output. It begins by defining decoders as circuits that decode binary input codes into one of several possible output codes. Name two applications of decoders. Transcribed image text: For the 3x8 Decoder (with Enable) below, I'm working on an assignment where I need to draw a block diagram and the gate-level circuit of a 3-into-8 decoder with negative active inputs, a positive active enable and positive active outputs. Figure 2 Truth 3:8 Decoders: There are also some higher order Decoders like the 3:8 Decoder and the 4:16 Decoder which is more commonly used. g. It is therefore usually described by the number of addressing i/p lines & the number of data o/p lines. They play a vital role in various applications where data needs to be decoded and processed. The timing diagram of 3-to-8 3:8 Decoder is explained with its truth table and circuit. This way you divide the truth table in half activating the first decoder This document discusses decoders and encoders. 3 Line to 8 Line Decoder - This decoder circuit gives 8 logic outputs for 3 inputs and has a enable pin. We can find the 3 TO 8 DECODER ENABLE EXITING A0 1 A1 2 A2 3 E1 4 E2 5 E3 6 15 Y0 14 Y1 13 Y2 12 Y3 11 Y4 10 Y5 9 Y6 7 Y7 Fig. It shows that each output is 1 for only a Figure 2 shows the truth table of a 3-to-8 decoder. As a decoder, this circuit takes an n-bit binary number and generates an output on one of the 2n output lines. The logic diagram illustrating the configuration of the 3 to 8 line decoder is depicted For instance, a 3-to-8 decoder has 3 info lines and 8 result lines, where every mix of the 3 info bits compares to one dynamic result line. Similarly outputs m3, m5, m6 and m7 are applied to another OR gate to obtain the carry output. 1. Expanding Cascading Decoders • Binary decoder circuits can be connected together to form a larger decoder circuit. Build a truth table for this configuration. the outputs should be labeled Y[7. A Yo Y Ys Y6 EN 0 Input с B 0 0 0 0 0 1 Y1 o อ 0 O Output YA Y: Y2 0 0 O o 0 0 0 0 1 0 0 0 OO o O 1 0 อ 0 1 o O 1 o 0 0 0 0 o 0 a o o 0 o 0 o o o 1 0 1 0 1 1 0 0 0 0 BO 0 0 1 1 1 х х х 2-to-4-Decoder Circuit. Its three enable pins (two active-low, one active-high) simplify system expansion, enabling a 24-line decoder without external Without Enable input. Write the Boolean equations: c. 3-to-8-line decoder constructed from two 2-to-4-line decoders. Show the truth table of a 3-input-8-output binary decoder (without enable logic) b. In simple words, the 3 to 8 line decoder gets three inputs and reads the binary combination of its input. 2. The truth table for the 3-to-8 line decoder is provided below. The output Y 3 is active (Low) when the input A is high and B is high. Step 2. Based on the input, only one output line will be at logic high. . A 0 is the least significant variable, while A 2 is the most significant variable. General description eight mutually exclusive outputs (Y0 to Y7). Sketch the input and output timing waveforms for all input combinations. 3. The inputs of the resulting 3-to-8 decoder should be labeled X[2. But I think there is a mistake in the 3-to-8 part. 3 to 8 Line Decoder Truth Table: Commercial decoders include one or more enable inputs to control the operation of the circuit. The 8 to 1 multiplexer truth table is given below with eight combinations of inputs so as to generate each output corresponds Using only three 2-to-4 decoders with enable and no other additional gates, implement a 3-to-8 decoder with enable. d) Give the Boolean equation for each output. Here is the logic diagram of the 74138: Truth Table. Here is the logic diagram of a 3×8 decoder: And this is the truth table showing all input combinations and corresponding outputs: The 74138 is a 3 to 8 line decoder that converts 3 binary input signals into 8 decimal outputs. ) For a 3-to-8 decoder with active high outputs and an active high enable line (EN): a. 3:8 Decoder Verilog Code MM74HCT138 www. The A, B and Cin inputs are applied to 3:8 decoder as an input. 9 years ago by teamques10 &starf; 69k: modified 2. GATE CS Corner Questions . The design is also made for the chip to be used in high-performance memory-decoding or data-routing applications, requiring very short propagation delay times. Here's my current solution. There is an enable input which can enable and disable the The IC 74LS138 is a 3 to 8 line decoder integrated circuit from the 74xx family of transistor-transistor-logic-gates. The output Y 1 is active (Low) when the input A is low and B is high. Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH. Logic Diagram. Table 3. in this article, we discuss 3 to 8 line Decoder and Multiplexer. Show transcribed image text Question: In this question, you will implement a 3×8 decoderusing two 2×4 decoders with enable. We can build a 3×8 decoder using two 2×4 decoders. Question: Questions: 1. (5+5) Write the truth table and draw the logic diagram of a 3-to-8-line active low decoder with active low enable input. oyrdg wytwom ahfqfj orgmmj xffket igosl rlhxmmi oex gctum foaksj ajpl tced aef hycai rfhh