digital logic design by morris mano ebook download

... 13 Problems (Mano) Problems (Mano) °Obtain the simplified Boolean expressions for outputs F and G in terms of the input variables in (A,B,C and D) Problems (Mano) Problem (Mano) Design a combinational ... 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 ... to 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

... Trang 1717 Draw the logic diagram of a two-to-four-line decoder using a NOR gates only including and enable input.Trang 18Problem (Mano) Using a decoder and external gates, design the combinational ... defined by the following three Boolean functions. Trang 1919 combinational circuit defined by the following three Boolean functions.Trang 20Problem Using a decoder and external gates, design the ... external gates, design the combinational circuit defined by the following three Boolean functions. Trang 2121 combinational circuit defined by the following three Boolean functions.Trang 22Problem

Ngày tải lên: 12/02/2020, 22:25

... 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 ... 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 ... function: • Boolean expression • truth table • logic circuit • minterms/maxterms • Karnaugh map Combinational logic design ° Use multiple representations of logic functions ° Use graphical representation

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

... AB+AC+B = B+AC Boolean Algebra and Logic Simplification Trang 23Simplification Using Boolean Algebra.Gate Network for Example 1: ABAB Boolean Algebra and Logic Simplification Trang 24Simplification ... 24Simplification Using Boolean Algebra.Gate Network for Example 1: B+AC C B+AC ACA B Boolean Algebra and Logic Simplification Trang 25Simplification Using Boolean Algebra.Gate Network for Example 1: Trang ... Algebra.Example 3: Using Boolean algebra techniques, simplify the following expression: Boolean Algebra and Logic Simplification ABC + ABC + ABC + ABC + ABC + ABC ABC + ABC + ABC + ABC + ABC + ABC BC(A +

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 ... Theorem Alternate Logic-Gate Representations Standard and alternate symbols for various logic gates and inverter Invert each input and output of the standard symbol, This is done by adding bubbles(small ... flexibility x 0 1 y 1 G 0 Logic functions of variables Truth table - Wikipedia, The NA ND A Y Gat B e ° This is a NAND gate It is a combination of an AND gate followed by an inverter Its truth

Ngày tải lên: 12/02/2020, 15:41

... Trang 1Digital Logic DesignLecture 2 More Number Systems/Complements Trang 2w ° Hexadecimal numbers • Related ... binary bits °Was used in early computing, but was replaced by hexadecimal Trang 11Decimal to Octal Conversion:The Division: [359] 10 = [ ? ] 8 By using the division system: 08 5 58 44 448 Trang 12Binary ... can be use to add (and subtract) binary numbers. ° Digital electronics requires frequent addition and subtraction of numbers You know how to design an adder, but what about a subtracter? ° A

Ngày tải lên: 12/02/2020, 15:41

... Algebra, Logic and Gates° Logical operators operate on binary values and binary variables. ° Basic logical operators are the logic functions AND, OR and NOT. ° Logic gates implement logic functions. ... the basic logic operations: 1 1 1 0 0 1 0 1 0 0 0 0 Z = X·Y Y Trang 15° Using Switches• Inputs: - logic 1 is switch closed - logic 0 is switch open • Outputs: - logic 1 is light on - logic 0 ... CMOS gate circuits, the foundation of current digital logic circuits Logic Function Implementation – cont’d BA D C A (B C + D) = A B C + A D Trang 17Digital Systems° Analysis problem: • Determine

Ngày tải lên: 12/02/2020, 15:51

... Lecture 31 PLAs and Arithmetic Logic Unit (ALU) Programmable Logic Array ° A ROM is potentially inefficient because it uses a decoder, which generates ... Mealy and Moore machines to implement combinational logic ° In normal use ROMs are read-only • They are only read, not written ° ROMs are often used by computers to store critical information • Unlike ... ROMs often are used in the control path ° Build a data and control path Arithmetic Logic Unit ° Arithmetic logic unit functions • Two multi-bit data inputs • Function indicates action (e.g add,

Ngày tải lên: 12/02/2020, 19:02

... information-processing operation fully specified logically by a set of Boolean functions Trang 11Sequential circuitselements (binary cells) in addition to logic gates. ° Their outputs are a function ... input to cause change at output • min delay – typical/nominal delay – max delay • careful designers design for both worst case and best case ° Rise time — time for output to transition from ... ° Because of circuit delays, the transient behavior of a combinational logic circuit may differ from what is predicted by a steady-state analysis. ° In particular a circuit’s output may produce

Ngày tải lên: 12/02/2020, 20:23

... Flip-Flops etc ° A Sequential Circuit can be defined as circuit having sequential logic Sequential logic is a type of a logic circuit whose output depends not only on current inputs but also Trang ... outside logic signal inputs to the circuit Typically, the clock is not consider part of the signal inputs of the circuit. ° Outputs – The logic signal outputs. ° Present State – the logic value ... Steering Gates ° The flow of logic can be controlled with a logic Trang 26An SR latch with a control input° Here is an SR latch with a control input C ° Notice the hierarchical design! • The dotted

Ngày tải lên: 12/02/2020, 20:43

... 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 ... Flip-flop Implementation by JK Flip-flop 39 T Flip-flop Implementation T Flip-Flop T J K Q D T Q Q D = JQ’ + K’Q D = TQ’ + T’Q = T   Q Q T Q Q 40 Implement JK Flip-flop by T Flip-flop 41 Flip Flo

Ngày tải lên: 12/02/2020, 23:39

... outputs: A>B, A=B, A<B ° Design Approaches • the truth table - 2 2n entries - too cumbersome for large n • use inherent regularity of the problem - reduce design efforts - reduce human ... C3 C2 Trang 21D01  D23 Therefore, one term in thelogic equation for A > B isA3 . B3’ Find A > B Trang 22Therefore, the next term in thelogic equation for A > B is C3 . C2 . A1 . B1’ ... Greater/less than requires more hardware than equality ° Multiplexers are fundamental digital components • Can be used for logic • Useful for datapaths

Ngày tải lên: 12/02/2020, 23:58

... feedback or storage elements). Trang 28Digital Design Overview° Design digital circuit from specification ° Digital inputs and outputs known • Need to determine logic that can transform data ° Start ... 51Multilevel Logic Circuits Objectives: 1 Design logic circuits that meet the fan-in requirements of the chosen technology. 2 Design a minimum-cost logic circuit. Trang 52Multilevel Logic CircuitsTwo ... Trang 29Design Procedure (Mano) Design a circuit from a specification. 1 Determine number of required inputs and outputs. 2 Derive truth table 3 Obtain simplified Boolean functions 4 Draw logic

Ngày tải lên: 13/02/2020, 00:14

... Vs Design°Analysis: Start from circuit diagram, build state table or state diagram °Design: Start from specification set (i.e in state equation form, state table or state diagram) build logic ... memory. Trang 3 Synchronous Sequential Logic Circuit All Flip-Flops use the same clock and change state on the same triggering edge.  Asynchronous Sequential Logic Circuit  Can change state at ... memory for the circuit and the 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

Ngày tải lên: 13/02/2020, 00:30

... contain a collection of data bytes • A collection of bytes is called a word • A sixteen bit word contains two bytes • Capacity of RAM device is usually described in bytes (e.g 16 MB) ° Write operations ... • 200MHz x 8 bytes/cycle = 1600MB/s • 266MHz x 8 bytes/cycle = 2100MB/s. ° DDR-RAM has lower power consumption, using 2.5V instead of 3.3V like SDRAM This makes it good for notebooks and other ... by multiplying the number of transfers per second by the size of each transfer. • PC100 can transfer up to 800MB per second (100MHz x 8 bytes/cycle). • PC133 can get over 1 GB per second.

Ngày tải lên: 13/02/2020, 00:35

... ("bubbles") ° Each introduced "bubble" must be matched by a corresponding "bubble" • Conservation of inversions • Do not alter logic function ° Example: AND/OR to NAND/NAND Z NAND NAND ... counted • In a typical circuit, inversion is done once and signal distributed Trang 13Two-level Logic using NAND Gates (cont’d)Trang 14° Convert from networks of ANDs and ORs to networks of NANDs ... Consensus Theorem Trang 5• The above alternate symbols can be used to facilitate the analysis and design of NAND and NOR gate networks. Trang 7NAND-NAND & NOR-NOR Networks= = Trang 8NAND-NAND

Ngày tải lên: 13/02/2020, 00:36

... write the simplified sum-of- products (SOP) logic expression for the logic care conditions. Trang 25B D A C 1 1 B D A C 1 1 Essential Minterms covered by essential prime implicants Selected Trang ... = 11 is a don’t-care condition , meaning that a circuit with x 1 and x 2 as inputs can be designed by ignoring this condition. ° A function that has don’t-care condition(s) is said to be incompletely ... function is incompletely specified and there are multiple (completely specified) logic functions that can be used in the design. • so we can select a function that gives the simplest circuit ° When

Ngày tải lên: 13/02/2020, 01:04

... overflow) Trang 17Recap after Combinational LogicTrang 18Sequential Logic (Why) ?° Sequential circuit has additional dimension which is time ° Combinational logic only depends on current input ° ... other than current input ° More powerful than combinational logic ° Able to model condition that can’t be accommodated by combinational logic Trang 19Sequential Circuits: Latches° Circuits require ... storage and logic to make a computation circuit Trang 25Combinational vs Sequential Combinational Logic Circuit  Output is a function only of the present inputs.  Sequential Logic Circuit

Ngày tải lên: 13/02/2020, 01:17

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

Ngày tải lên: 27/03/2014, 20:00