Logic gates

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  • Invite you to consult the document content "Fundamentals of digital logic and microcomputer design" below to capture the content: Introduction to digital systems, number systems and codes, boolean algebra and digital logic gates, combinational logic design. Hope this is useful references for you.

    pdf841p thangdambme 23-10-2015 20 9   Download

  • Tham khảo sách 'digital logic and microprocessor design with vhdl', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • The aim of this book is to provide readers with a fundamental understanding of digital system concepts such as logic gates for combinatorial logic circuit design and higher level logic elements such as counters and multiplexers. First year undergraduates taking a course in computer science or engineering (and related disciplines like information technology) are the main target audience. Foundation year students and those taking pre-university courses (like ‘A’ levels) will also benefit from the text. I have tried to follow a simple approach in writing the text.

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  • [ Team LiB ] 5.2 Gate Delays Until now, we described circuits without any delays (i.e., zero delay). In real circuits, logic gates have delays associated with them. Gate delays allow the Verilog user to specify delays through the logic circuits.

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  • The previous chapter examined methods for creating sensitized paths in combinational logic extending from stuck-at faults on logic gates to observable outputs. We now attempt to create tests for sequential circuits where the outputs are a function not just of present inputs but of past inputs as well. The objective will be the same: to create a sensitized path from the point where a fault occurs to an observable output. However, there are new factors that must be taken into consideration.

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  • [ Team LiB ] 5.1 Gate Types A logic circuit can be designed by use of logic gates. Verilog supports basic logic gates as predefined primitives. These primitives are instantiated like modules except that they are predefined in Verilog and do not need a module definition.

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  • Integrated circuits: many transistors on one chip. Very Large Scale Integration (VLSI): bucketloads! Complementary Metal Oxide Semiconductor – Fast, cheap, low power transistors Today: How to build your own simple CMOS chip – CMOS transistors – Building logic gates from transistors – Transistor layout and fabrication Rest of the course: How to build a good CMOS chip

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  • Introduction to digital systems, digital logic, boolean algebra and logic gates, combinational logic gates, number systems, conversions and codes, binary addition and subtraction,... As the main contents of the document "Electronic digital system fundamentals". Invite you to consult the text book for more documents serving the academic needs and research.

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  • (BQ) Part 1 book "Digital design" has contents: Digital systems and binary numbers, boolean algebra and logic gates, gate level minimization, combinational logic, synchronous sequential logic.

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  • (BQ) Part 1 book "Introduction to quantum computers" has contents: Introduction, the turing machine, binary system and boolean algebra, the quantum computer, the discrete fourier transform, quantum factorization of integers, logic gates, implementation of logic gates using transistors, reversible logic gates,...and other contents.

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  • (BQ) Part 2 book "Introduction to quantum computers" has contents: Unitary transformations and quantum dynamics, quantum dynamics at finite temperature, physical realization of quantum computations, linear chains of nuclear spins, experimental logic gates in quantum systems, error correction for quantum computers,...and other contents.

    pdf104p bautroibinhyen20 06-03-2017 0 0   Download

  • Pass Transistors DC Response Logic Levels and Noise Margins Transient Response RC Delay Models Delay Estimation .Pass Transistors We have assumed source is grounded What if source 0? VDD – e.g. pass transistor passing VDD VDD Vg = VDD – If Vs VDD-Vt, Vgs Vout = VDD – When Vin = VDD - Vout = 0 VDD – In between, Vout depends on Idsp transistor size and current Vin Vout – By KCL, must settle such that Idsn Idsn = |Idsp| – We could solve equations – But graphical solution gives more insight...

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  • Power and Energy Power is drawn from a voltage source attached to the VDD pin(s) of a chip. Instantaneous Power: P (t ) = I (t )V (t ) Energy: Average Power: 7: Power – Half the energy from VDD is dissipated in the pMOS transistor as heat, other half stored in capacitor When the gate output falls – Energy in capacitor is dumped to GND – Dissipated as heat in the nMOS transistor

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  • Bài giảng Kiến trúc máy tính và hợp ngữ - Chương 7: Mạch Logic. Nội dung trình bày trong chương này gồm có: Mạch số, cổng luận lý (Logic gate), lược đồ Venn, một số đẳng thức cơ bản, mạch tổ hợp (tích hợp), độ trễ mạch, SOP – Sum of Products,... Mời các bạn cùng tham khảo.

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  • Designing a circuit to achieve the greatest speed or to meet a delay constraint presents a bewildering array of choices. Which of several circuits that produce the same logic function will be fastest? How large should a logic gate’s transistors be to achieve least delay?

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  • So far, we have treated transistors as ideal switches An ON transistor passes a finite amount of current – Depends on terminal voltages – Derive current-voltage (I-V) relationships Transistor gate, source, drain all have capacitance – I = C (∆V/∆t) - ∆t = (C/I) ∆V – Capacitance and current determine speed .MOS Capacitor Gate and body form MOS capacitor V Vt + inversion region depletion region .Terminal Voltages Vg Mode of operation depends on Vg, Vd, Vs + + – Vgs = Vg – Vs Vgs Vgd – Vgd = Vg – Vd Vs Vd – Vds = Vd – Vs...

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  • Nonideal Transistor Behavior – High Field Effects • Mobility Degradation • Velocity Saturation – Channel Length Modulation – Threshold Voltage Effects • Body Effect • Drain-Induced Barrier Lowering • Short Channel Effect – Leakage • Subthreshold Leakage • Gate Leakage • Junction Leakage Process and Environmental Variations .Ideal Transistor I-V Shockley long-channel transistor models

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  • This paper presents a new design method for all-optical NAND and AND logic gates based on 3x3 general interference multimode interference (GI MMI) coupler. The whole device is realized on the silicon on insulator (SOI) platform. The transfer matrix method (TMM) and three dimensional beam propagation method (3D-BPM) are used to optimally design these devices. Key words: Optical logic gate, multimode interference (MMI) coupler, silicon on insulator (SOI), beam propagation method (BPM)

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  • Chapter 3 - Digital logic structures. This chapter includes contents: Transistor: building block of computers, simple switch circuit, n-type MOS transistor, logic gates, inverter (NOT Gate),...and other contents.

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  • Chapter 3 - Digital logic structures. This chapter presents the following content: Electronic ones and zeros, transistors, CMOS transistors, inverter gate, NOR gate, NOR gate - Operation, OR gate, NAND & AND Gates, logic gates & symbols, De Morgan’s Law,...and other contents.

    ppt40p tangtuy10 04-05-2016 4 1   Download

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