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DE_1.1Terms

DE_KeyTerms_Unit 1.1

TermDefinition
Transistor Semiconductor device that can be used as an amplfier or as an electronic switch
Solder bridge The unwanted formation of a conductive path between conductors
Capacitor An electronic device used to store electricity
Resistor code A color code consisting of stripes on a resistor to indicate it's resistance.
Soldering The process of joining two metallic surfaces to make an electrical circuit.
Resistor A component that opposes the flow of current and has a value of resistance.
Fuse An electrical device in the current path that melts when the current exceeds the maximum value.
Solder Metallic alloy of tin an lead that is used to join two metal surfaces.
SI Notation Abbreviation of System International. a system of practical units based on the meter, kilogram, second, ampere, Kelvin, etc.
Engineering Notation A floating point system in which numbers are expressed as products consisting of a number greater than one multiplied by an appropriate power of ten that is some multiple of three.
Digital Multimeter Electronic Test Equipment that can perform multiple tasks.
LED Light Emitting Diode that conducts current in only one direction and it illuminates.
Seven Segment An array of seven independantly controlled diodes (LED) shaped like a figure 8
Solder Iron Tool with an internal heating element used to solder electrical connections
Dual Inline Package An IC Package with two parallel rows of pins intended to be inserted into a socket of holes
Analog A way of representing some physical quantity such as temperature or velocity, by a proportional continuous voltage or current. An analog voltage or current can have any value within a defined range.
AND Gate Digital circuit that implements the AND operation. The output is HIGH only if all of its inputs are HIGH
Breadboard A circuit board for wiring temporary circuits, usually used for prototypes or laboratory work.
Clock Digital signal in the form of a rectangular pulse train or a square wave.
Combinational Logic Digital circuitry in which an output is derived from the combination of inputs, independent of the order in which they are applied
Conventional Current The direction of current flow associated with positive charge in motion. The current flow direction is from a positive to negative potential, which is in the opposite direction of electron flow.
Current A movement of electrical charges around a closed path or circuit.
Cycle A series of events that are regularly repeated in the same order.
Datasheet A printed specification giving details of the pin configuration, electrical properties, and mechanical profile of an electronic device.
Digital A way of representing a physical quantity by a series of binary numbers. A digital representation can have only specific discrete values.
Digital waveform A series of logic 1s and 0s plotted as a function of time.
Fuse A protective device in the current path that melts or breaks when current exceeds a predetermined maximum value.
Kirchoff's Current Law (KCL) The algebraic sum of all currents into and out of any branch point in a circuit must equal zero.
Engineering Notation A floating point system in which numbers are expressed as products consisting of a number greater than one multiplied by a appropriate power of ten that is in a multiple of three
Kirchoff's Voltage Law (KVL) The algebraic sum of all voltages around any closed path must equal zero.
Large Scale Integration (LSI) An IC that contains circuitry equivelant to 100 gates or more.
Logic Gate An electronic circuit that performs a Boolean function
Logic HIGH The higher of two voltages in a digital system with two logic levels.
Logic LOW The lower of two voltages in a digital system with two logic levels.
Medium Scale Integration An IC that contains circuitry equivelent to more than 11 and less than 100 gates
NOT Gate Also called an INVERTOR gate
Ohm Unit of resistance
Ohm's Law In electric circuits, I=V/R
OR Gate Digital circuit that implement the OR operation if any or all of its imputs are HIGH
Parallel Circuit One that has two or more branches for deparate current from one voltage source.
Plastic Leaded Chip Carrier (PLCC) A square IC package with leads on all four sides for surface mounting
Printed circuit board Insulating board containing conductive tracks for circuit connections.
Resistance Opposition to current. Unit is the ohm.
Resistor Color Code Coding system of colored stripes on a resistor
Scientific Notation Numbers entered as a number from one to ten multiplied by a power of ten.
Schottky TTL TTL family that uses the basic TTL standard circuit except that it uses a Schottky barrier code (SBD) connected between the base and the collector.
Series Circuit One that only one path current.
Sequential Logic Digital circuitry in which the output state of the circuit depends not only on the states of the inputs, but also on the sequence in which they reached their present states.
Simulation Testing design function by specifying a set of inputs and observing the resultant outputs.
Small Scale Integration a small circuit having 12 or fewer gates in one package
Tinning The process of applying a thin coat of solder to materials prior to their being soldered.
Toggle To switch from one effect, feature, or state to another.
Truth Table A list of all possible input values to a digital circuit, listed in ascending binary order, and the output response for each input combination.
Created by: 1024061
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