digital logic design lab manual pdf

... hành thí nghiệm mkdir DICD_Lab_ cd DICD_Lab_ cp cds.lib gpdk090_v4.6 AICD_Lab[Tên] cp cdsinit gpdk090_v4.6 AICD_Lab  Chỉnh sửa đường dẫn thư viện thiết kế cd DICD_Lab_ vi cds.lib Thay đổi đường ... DEFINE gpdk90 /home/Digital_[số]/AICD_Course_Lab/gpdk90_v4.6/libs.oa22/gpdk090 6Thí Nghiệm Thiết Kế Vi Mạch Số Thí Nghiệm Thiết Kế Vi Mạch Số  Nguyễn Minh Hiếu Trong thư mục DICD_Lab_ bạn, thực truy ... nghiệm vào máy ảo Xuất thí nghiệm lệnh: Tar –zxvf DICD_Course_Lab.tar.gz  Di chuyển trỏ vào thư mục cài đặt thí nghiệm cd DICD_Course_Lab  Trong thư mục chứa PDK thí nghiệm không làm PDK mà phải

Ngày tải lên: 30/03/2018, 22:45

... odd number Problem (Mano) Design a combinational circuit with three inputs and one output b) The output is when binary value of the inputs is an odd number Problem (Mano) Design a combinational ... also shown in Fig Using the truth table and K-Map, design the BCD-to-seven-segment decoder using the minimum number of gates 15 Problem (Mano) Design a combinational circuit that converts a four ... four bit binary number 16 Problem (Mano) Design a combinational circuit that converts a four bit Gray code to four bit binary number 17 Problem (Mano) Design a combinational circuit that converts

Ngày tải lên: 12/02/2020, 13:52

... Lecture 11 Combinational Design Procedure Overvie w ° Design digital circuit from specification ° Digital inputs and outputs known • Need to determine logic that can transform data ° Start ... function: • Boolean expression • truth table • logic circuit • minterms/maxterms • Karnaugh map Combinational logic design ° Use multiple representations of logic functions ° Use graphical representation ... circuit diagram Design Procedure (Mano) Design a circuit from a specification Determine number of required inputs and outputs Derive truth table Obtain simplified Boolean functions Draw logic diagram

Ngày tải lên: 12/02/2020, 14:29

... Table 26 Design a serial adder using a sequential-logic procedure 27 Design a serial adder using a sequential-logic procedure 28 Design a serial adder using a sequential-logic procedure 29 Design ... combin logic 25 Design a serial adder using a sequential-logic procedure Two shift registers are required to store the binary numbers to be added serially serial outputs from the registers are designated ... registers can be used with adders to build arithmetic units ° Remember: most digital hardware can be built from combinational logic (and, or, invert) and flip flops • Basic components of most computers

Ngày tải lên: 12/02/2020, 15:09

... and logic operations ° Function results in binary or x 0 0 1 1 y 0 1 0 1 z 1 1 F 0 0 1 x y z z’ y+z’ F = x(y+z’) F = x(y+z’) Boolean Functions ° Boolean algebra deals with binary variables and logic ... Algebra and Logic Simplification Simplification Using Boolean Algebra Gate Network for Example 1: AB+A(B+C)+B(B+C) A AB B A B A(B+C) B+C AB+A(B+C)+B(B+C) C B B(B+C) Boolean Algebra and Logic Simplification ... Algebra and Logic Simplification Simplification Using Boolean Algebra Example 2: Using Boolean algebra techniques, simplify the following expression: [AB(C + BD) + AB]C Boolean Algebra and Logic Simplification

Ngày tải lên: 12/02/2020, 15:12

... sum-of-products and NORs • SOP to NORs • NORs to SOP ° Positive and negative logic • We use primarily positive logic in this course Logic functions of N variables ° Each truth table represents one possible ... the INVERTER, the operation symbol is not changed) Positive Logic and Negative Logic We will be emphasizing primarily on positive logic in this course Axioms and Graphical representation of DeMorgan's ... output expression for circuit via s DeMorgan’s Theorem Alternate Logic-Gate Representations Standard and alternate symbols for various logic gates and inverter Invert each input and output of the

Ngày tải lên: 12/02/2020, 15:41

... Basic logical operators are the logic functions AND, OR and NOT ° Logic gates implement logic functions ° Boolean Algebra: a useful mathematical system for specifying and transforming logic functions ... expressions will result in a logic circuit that is equivalent to the original circuit, yet requires fewer gates A B C AB+A(B+C)+B(B+C) B A C B+A C Boolean Algebra, Logic and Gates ° Logical operators operate ... Algebra ° Formal logic: In formal logic, a statement (proposition) is a declarative sentence that is either true(1) or false (0) ° It is easier to communicate with computers using formal logic ° Boolean

Ngày tải lên: 12/02/2020, 15:51

... ° Data can move from register to register ° Digital logic used to process data ° We will learn to design this logic Register A Register B Digital Logic Circuits Register C Transfer of Information ... Digital Logic Design Lecture Complements, Number Codes and Registers Overvie w ° Complement of numbers ... Computer ° We need processing ° We need storage ° We need communication ° You will learn to use and design these components Summary ° 2’s complement most important (only representation for zero)

Ngày tải lên: 12/02/2020, 18:08

... although the speeds still don’t compare with regular RAMs • MP3 players, digital cameras and other toys use CompactFlash, Secure Digital, or MemoryStick cards for non-volatile storage • Many devices ... consisting of three bits • The decoder inputs form an address, which refers to one of the eight available words • So every input combination corresponds to an address, which is “read” to produce a ... ° Internal organization similar to SRAM ° ROMs are effective at implementing truth tables • Any logic function can be implemented using ROMs ° Multiple single-bit functions embedded in a single

Ngày tải lên: 12/02/2020, 18:25

... the label “Probe Wire to the Left ” The letter L will be displayed in the Probe Tool Move the tip of the Probe Tool to the Logic Switch labeled “Toggle Switch.” and click near its center The Logic ... box from the top This causes the V1 designation to be hidden on the schematic Click OK Changing Resistor Label-Values Double-click resistor R1 Change the Label-Value field to read 220k, then ... middle of the wire which connects +15V to R2 35 Digital Logic Simulation Click the Open button in the Toolbar Select the SIM.CKT file from the list of available circuits The SIM.CKT circuit contains

Ngày tải lên: 12/02/2020, 19:02

... we convert from one to the other? Logic circuits ° Logic circuits for digital systems may be combinational or sequential ° Combinational circuit consists of logic gates whose outputs at any time ... propagation delay of the logic gate (tp) ° The propagation delay for a to output change (tpLH) may be different than the delay for a to change (tpHL) Gat e Del ays (co nt’d ) Digital signal: Important ... change at input to cause change at output • delay – typical/nominal delay – max delay • careful designers design for both worst case and best case ° Rise time — time for output to transition from low

Ngày tải lên: 12/02/2020, 20:23

... Unstable combinati on 1 X race conditio 21 Review: Steering Gates ° The flow of logic can be controlled with a logic gate Signal 10 °°10 Control The NAND as a steering gate inverts the input ... 0 1 No  c h ang e No  c h ang e  ( r e s e t ) 1 ( s e t ) A vo id ! ° Notice the hierarchical design! • The dotted blue box is the S’R’ latch from the previous slide • The additional NAND gates

Ngày tải lên: 12/02/2020, 20:43

... 2’s complementer? Try it yourself 10 Problem Design a four-bit combinational circuit incrementer (a circuit that adds to a four-bit binary number (b) Design a four-bit combinational circuit decrementer ... (Mano) Design a combinational circuit that compares two four-bit numbers to check if they are equal The circuit output is equal to if the two numbers are equal and otherwise 16 Problem Draw the logic ... Using a decoder and external gates, design the combinational circuit defined by the following three Boolean functions 18 Problem Using a decoder and external gates, design the combinational circuit

Ngày tải lên: 12/02/2020, 22:25

... Asynchronous ° Asynchronous design is often unavoidable: • User interfaces • Different speed devices • Clocks are difficult to distribute over long distances ° More difficult to design, design tools generally ... asynchronous design tools are being developed ° Most current devices us synchronous logic inside local blocks, and asynchronous communication between blocks ° What constitutes a “block” is shrinking as logic ... sequential components are the latch and flip-flop ° They store one bit of data and make it available to other components ° The main difference between a latch and a flip-flop is that the first

Ngày tải lên: 12/02/2020, 23:39

... other word, a comparator determines the relationship of two binary quantities Designing Comparators Functionally Designing Comparators Functionally Add an enable line A A>B A=B B Enable Build ... Select one out of several bits • Some inputs used for selection • Also can be used to implement logic Comparators ° Comparing two binary words is a common operation in computers ° A circuit that ... comparators ° XOR and XNOR gates can be viewed as 1-bit comparators ° Comparator is a combinational logic circuit that compares the magnitudes of two binary quantities to determine which one has the

Ngày tải lên: 12/02/2020, 23:58

... 1 0 1 10 Multilevel Logic Circuits Two techniques that can be used to realize multilevel logic circuits: Factoring Functional Decomposition 52 Factoring Example: Realize a logic circuit that has ... Example: Design the minimum-cost logic circuit that implements the following Boolean expressions F1(A,B,C,D) = m(1,2,3,7,11,15) F2(A,B,C,D) = M(0,1,2,3,4,8,12) 54 Functional Decomposition Example: Design ... Lecture 12 More about Combinational Analysis and Design Procedures Logic Circuit Analysis Analysis: Determining the behavior of a system given its description

Ngày tải lên: 13/02/2020, 00:14

... = D.(Q +Q) = D.1 = D 10 Design: Example ° Determine input expression for flip-flop and y output 35 Design Example °From Boolean expressions built, draw logic diagram 36 Design: Example ° How if ... combinational logic which realizes the input functions for the flip-flops and the output functions The combinational logic may be implemented with gates, with a ROM, or with a PLA Sequential Logic (Why) ... Circuit Design (cont’d) Design table for the binary counter example 46 Seq uen tial Circ uit Des ign (co nt’d ) Use K-maps to simplify expressions for JK inputs 47 Sequential Circuit Design (cont’d)

Ngày tải lên: 13/02/2020, 00:30

... parity bit The four check bits are evaluated as follows: A check bit designates an even parity over the checked bits and a designates an odd parity Since the bits were stored with even parity, ... of the memory words are selected 21 22 Array of RAM Chips ° Integrated-circuit RAM chips are available in a variety of sizes ° If the memory unit needed for an application is larger than the capacity ... memory has 2k words, k address bits are needed ° 23 words, address bits ° Address locations are labelled to 2k-1 ° Common subscripts: ° Kilo – 210 ° Mega – 220 ° Giga - 230 Write Operation Apply

Ngày tải lên: 13/02/2020, 00:35

... primitives nand nor and or not • The above alternate symbols can be used to facilitate the analysis and design of NAND and NOR gate networks NA NDNA DeMorgan’s Law: ND & (a + b)’ = a’ b’ NO a + b = (a’ ... "bubble" must be matched by a corresponding "bubble" For ms• Conservation of inversions • Do not alter logic function ° Example: AND/OR to NAND/NAND A A B B C D Z C D NAND NAND NAND Z Con ver °sio Example: ... AND gate • 10 wires (7 literals plus internal wires) A B C D E F G X Conversion of Multi-level Logic to NAND ° FGates = A (B + C D) + B C' Level 1 original AND­OR  network introduction and conservation of 

Ngày tải lên: 13/02/2020, 00:36

... Computer Engineering ECE380 Digital Logic Introduction to Logic Circuits: Design Examples Dr. D. J. Jackson Lecture 5-2Electrical & Computer Engineering Design examples ã Logic circuits provide ... Engineering ECE380 Digital Logic Introduction to Logic Circuits: Synthesis using AND, OR, and NOT gates Dr. D. J. Jackson Lecture 4-2Electrical & Computer Engineering Example logic circuit design ã ... AND logical AND –OR logical OR – NOT logical NOT – NAND, NOR, XOR, XNOR (covered later) ã Assignment operator <= A variable (usually an output) should be assigned the result of the logic...

Ngày tải lên: 27/03/2014, 20:00