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Clock signal

Index Clock signal

In electronics and especially synchronous digital circuits, a clock signal is a particular type of signal that oscillates between a high and a low state and is used like a metronome to coordinate actions of digital circuits. [1]

64 relations: Analog-to-digital converter, Asynchronous circuit, Bit-synchronous operation, Clock domain crossing, Clock gating, Clock generator, Clock rate, Clock skew, Combinational logic, Cool'n'Quiet, CPU multiplier, Crystal oscillator, Design flow (EDA), Differential signaling, Digital data, Digital electronics, Double data rate, Duty cycle, Dynamic frequency scaling, Dynamic logic (digital electronics), Eby Friedman, Electrical network, Electronic circuit, Electronic design automation, Electronics, Fan-out, Flip-flop (electronics), Four-phase logic, Functional requirement, Harmonic, IMP-16, Inductor, Input/output, Integrated circuit, Integrated circuit design, Intrinsity, Jitter, Metronome, Microcomputer, Microcontroller, Microprocessor, Mixed-signal integrated circuit, Moore's law, MOS Technology 6502, National Semiconductor, Noise (electronics), Phase (waves), Pipeline (computing), PowerNow!, Propagation delay, ..., Pulse-per-second signal, Race condition, Reversible computing, Self-clocking signal, Signal, Sine wave, Single-ended signaling, Slew rate, SpeedStep, Spread spectrum, Square wave, Synchronous circuit, Transmission gate, Waveform. Expand index (14 more) »

Analog-to-digital converter

In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal.

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Asynchronous circuit

An asynchronous circuit, or self-timed circuit, is a sequential digital logic circuit which is not governed by a clock circuit or global clock signal.

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Bit-synchronous operation

Bit-synchronous operation is a type of digital communication in which the data circuit-terminating equipment (DCE), data terminal equipment (DTE), and transmitting circuits are all operated in bit synchronism with a clock signal.

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Clock domain crossing

In digital electronic design a clock domain crossing (CDC), or simply clock crossing, is the traversal of a signal in a synchronous digital circuit from one clock domain into another.

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Clock gating

Clock gating is a popular technique used in many synchronous circuits for reducing dynamic power dissipation.

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Clock generator

A clock generator is a circuit that produces a timing signal (known as a clock signal and behaves as such) for use in synchronizing a circuit's operation.

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Clock rate

The clock rate typically refers to the frequency at which a chip like a central processing unit (CPU), one core of a multi-core processor, is running and is used as an indicator of the processor's speed.

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Clock skew

Clock skew (sometimes called timing skew) is a phenomenon in synchronous digital circuit systems (such as computer systems) in which the same sourced clock signal arrives at different components at different times i.e. the instantaneous difference between the readings of any two clocks is called their skew.

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Combinational logic

In digital circuit theory, combinational logic (sometimes also referred to as time-independent logic) is a type of digital logic which is implemented by Boolean circuits, where the output is a pure function of the present input only.

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Cool'n'Quiet

AMD Cool'n'Quiet is a CPU dynamic frequency scaling and power saving technology introduced by AMD with its Athlon 64 processor line.

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CPU multiplier

In computing, the clock multiplier (or CPU multiplier or bus/core ratio) sets the ratio of an internal CPU clock rate to the externally supplied clock.

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Crystal oscillator

A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a precise frequency.

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Design flow (EDA)

Design flows are the explicit combination of electronic design automation tools to accomplish the design of an integrated circuit.

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Differential signaling

Differential signaling is a method for electrically transmitting information using two complementary signals.

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Digital data

Digital data, in information theory and information systems, is the discrete, discontinuous representation of information or works.

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Digital electronics

Digital electronics or digital (electronic) circuits are electronics that operate on digital signals.

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Double data rate

In computing, a computer bus operating with double data rate (DDR) transfers data on both the rising and falling edges of the clock signal.

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Duty cycle

A duty cycle is the fraction of one period in which a signal or system is active.

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Dynamic frequency scaling

Dynamic frequency scaling (also known as CPU throttling) is a technique in computer architecture whereby the frequency of a microprocessor can be automatically adjusted "on the fly" depending on the actual needs, to conserve power and reduce the amount of heat generated by the chip.

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Dynamic logic (digital electronics)

In integrated circuit design, dynamic logic (or sometimes clocked logic) is a design methodology in combinatory logic circuits, particularly those implemented in MOS technology.

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Eby Friedman

Eby G. Friedman is an electrical engineer, and Distinguished Professor of Electrical and Computer Engineering at the University of Rochester.

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Electrical network

An electrical network is an interconnection of electrical components (e.g. batteries, resistors, inductors, capacitors, switches) or a model of such an interconnection, consisting of electrical elements (e.g. voltage sources, current sources, resistances, inductances, capacitances).

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Electronic circuit

An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow.

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Electronic design automation

Electronic design automation (EDA), also referred to as electronic computer-aided design (ECAD), is a category of software tools for designing electronic systems such as integrated circuits and printed circuit boards.

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Electronics

Electronics is the discipline dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors.

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Fan-out

In digital electronics, the fan-out of a logic gate output is the number of gate inputs it can drive.

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Flip-flop (electronics)

In electronics, a flip-flop or latch is a circuit that has two stable states and can be used to store state information.

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Four-phase logic

Four-phase logic is a type of, and design methodology for dynamic logic.

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Functional requirement

In software engineering and systems engineering, a functional requirement defines a function of a system or its component, where a function is described as a specification of behavior between outputs and inputs.

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Harmonic

A harmonic is any member of the harmonic series, a divergent infinite series.

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IMP-16

The IMP-16, by National Semiconductor, was the first multi-chip 16-bit microprocessor in 1973.

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Inductor

An inductor, also called a coil, choke or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it.

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Input/output

In computing, input/output or I/O (or, informally, io or IO) is the communication between an information processing system, such as a computer, and the outside world, possibly a human or another information processing system.

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Integrated circuit

An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, normally silicon.

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Integrated circuit design

Integrated circuit design, or IC design, is a subset of electronics engineering, encompassing the particular logic and circuit design techniques required to design integrated circuits, or ICs.

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Intrinsity

Intrinsity was a privately held Austin, Texas based fabless semiconductor company; it was founded in 1997 as EVSX on the remnants of Exponential Technology and changed its name to Intrinsity in 2000.

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Jitter

In electronics and telecommunications, jitter is the deviation from true periodicity of a presumably periodic signal, often in relation to a reference clock signal.

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Metronome

A metronome, from ancient Greek μέτρον (métron, "measure") and νέμω (némo, "I manage", "I lead"), is a device that produces an audible click or other sound at a regular interval that can be set by the user, typically in beats per minute (BPM).

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Microcomputer

A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU).

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Microcontroller

A microcontroller (MCU for microcontroller unit, or UC for μ-controller) is a small computer on a single integrated circuit.

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Microprocessor

A microprocessor is a computer processor that incorporates the functions of a central processing unit on a single integrated circuit (IC), or at most a few integrated circuits.

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Mixed-signal integrated circuit

A mixed-signal integrated circuit is any integrated circuit that has both analog circuits and digital circuits on a single semiconductor die.

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Moore's law

Moore's law is the observation that the number of transistors in a dense integrated circuit doubles about every two years.

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MOS Technology 6502

The MOS Technology 6502 (typically "sixty-five-oh-two" or "six-five-oh-two") William Mensch and the moderator both pronounce the 6502 microprocessor as "sixty-five-oh-two".

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National Semiconductor

National Semiconductor was an American semiconductor manufacturer which specialized in analog devices and subsystems, formerly with headquarters in Santa Clara, California, United States.

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Noise (electronics)

In electronics, noise is an unwanted disturbance in an electrical signal.

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Phase (waves)

Phase is the position of a point in time (an instant) on a waveform cycle.

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Pipeline (computing)

In computing, a pipeline, also known as a data pipeline, is a set of data processing elements connected in series, where the output of one element is the input of the next one.

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PowerNow!

AMD PowerNow! is AMD's dynamic frequency scaling and power saving technology for laptop processors.

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Propagation delay

Propagation delay is a technical term that can have a different meaning depending on the context.

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Pulse-per-second signal

A pulse per second (PPS or 1PPS) is an electrical signal that has a width of less than one second and a sharply rising or abruptly falling edge that accurately repeats once per second.

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Race condition

A race condition or race hazard is the behavior of an electronics, software, or other system where the output is dependent on the sequence or timing of other uncontrollable events.

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Reversible computing

Reversible computing is a model of computing where the computational process to some extent is reversible, i.e., time-invertible.

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Self-clocking signal

In telecommunications and electronics, a self-clocking signal is one that can be decoded without the need for a separate clock signal or other source of synchronization.

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Signal

A signal as referred to in communication systems, signal processing, and electrical engineering is a function that "conveys information about the behavior or attributes of some phenomenon".

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Sine wave

A sine wave or sinusoid is a mathematical curve that describes a smooth periodic oscillation.

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Single-ended signaling

Single-ended signaling is the simplest and most commonly used method of transmitting electrical signals over wires.

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Slew rate

In electronics, slew rate is defined as the change of voltage or current, or any other electrical quantity, per unit of time.

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SpeedStep

Enhanced SpeedStep is a series of dynamic frequency scaling technologies (codenamed Geyserville and including SpeedStep, SpeedStep II, and SpeedStep III) built into some Intel microprocessors that allow the clock speed of the processor to be dynamically changed (to different P-states) by software.

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Spread spectrum

In telecommunication and radio communication, spread-spectrum techniques are methods by which a signal (e.g., an electrical, electromagnetic, or acoustic signal) generated with a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth.

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Square wave

A square wave is a non-sinusoidal periodic waveform in which the amplitude alternates at a steady frequency between fixed minimum and maximum values, with the same duration at minimum and maximum.

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Synchronous circuit

A synchronous circuit is a digital circuit in which the changes in the state of memory elements are synchronized by a clock signal.

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Transmission gate

A transmission gate (TG) is similar to a relay that can conduct in both directions or block by a control signal with almost any voltage potential.

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Waveform

A waveform is the shape and form of a signal such as a wave moving in a physical medium or an abstract representation.

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Redirects here:

Central clock, Clock (computing), Clock Distribution Networks, Clock Signal, Clock circuit, Clock cycle, Clock cycles, Clock distribution netoworks, Clock distribution network, Clock domain, Clock pulse, Clock tree, Computer clock, Dynamic frequency change, Leaf clock, Two-phase clock.

References

[1] https://en.wikipedia.org/wiki/Clock_signal

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