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Digital Electronics > Semester 1 Final > Flashcards

Semester 1 Final Flashcards

1
Q

Capacitor

A

An electrical device used to store electrical charge

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2
Q

Dual In-Line Package

A

A very common IC package with two parallel rows of pins intended to be inserted into a socket of through holes drilled in a printed circuit board

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3
Q

Printed Circuit Board

A

Insulating board containing conductive tracks for circuit connections.

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4
Q

Plastic Leaded Chip Carrier

A

A square IC package with leads on all four side designed for surface mounting on a circuit board

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5
Q

Resistor

A

Component made of material that opposes flow of current and therefore has some value of resistance.

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6
Q

Small Outline IC

A

An IC package similar to a DIP, but smaller, which is designed for automatic placement and soldering one the surface of a circuit board

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7
Q

Analog

A

A way of representing some physical quantity, such as temp or velocity, by a proportional continuous voltage or current.

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8
Q

Amplitude

A

The instantaneous voltage of a waveform

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9
Q

Breadboard

A

A circuit board for wiring temporary circuits

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10
Q

Conductor

A

Any material that allows the free movement of electrical charges to provide an electric current

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11
Q

Conventional Current

A

The direction of current flow positive to negative

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12
Q

Current

A

A movement of electrical charges around a closed path or circuit

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13
Q

Digital

A

A way of representing a physical quantity by a series of binary numbers

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14
Q

Digital Waveform

A

A series of logic 1s and 0s plotted as a function of time

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15
Q

Duty Cycle

A

Fraction of the total period that a digital waveform is in the high state.

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16
Q

Electron

A

Basic particle of negative charge in orbit; around the nucleus in an atom

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17
Q

Electron Flow

A

Direction from negative to positive

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18
Q

Frequency

A

The number of cycles per unit time of a periodic waveform

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19
Q

Hertz

A

Unit of frequency

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20
Q

Kirchhoff’s Voltage Law

A

The algebraic sum of all voltages around any closed path must equal zero

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21
Q

Kirchhoff’s Current Law

A

The algebraic sum of all currents into and out of any branch point in a circuit must equal zero

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22
Q

Ohms

A

Unit of resistance

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23
Q

Ohm’s Law

A

In electric circuits, I=V/R.

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24
Q

Parallel Circuit

A

One that has two or more branches for separate current from one voltage source

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25
Q

Period

A

The amount of time required for one complete cycle of a periodic event or waveform

26
Q

Resistance

A

Opposition to current

27
Q

Series circuit

A

One that has only one current path

28
Q

555 Timer

A

TTL-Compatible IC that can be wired to operate in several different modes

29
Q

AND Gate

A

Digital circuit that implements the AND operation. The output of this circuit is high only if all of its inputs are high.

30
Q

Boolean Expression

A

An algebraic expression made up of Boolean variables and operators.

31
Q

Clocked D Flip-Flops

A

Type of flip-flop in which the D input is the synchronous input

32
Q

Combinational Logic

A

Digital circuitry in which an output is derived from the combination of inputs, independent of the order in which they are applied

33
Q

Datasheet

A

A printed specification giving details of the pin configuration, electrical properties, and a mechanical profile if an electric device

34
Q

Flip-Flop

A

A sequential circuit based on a latch whose output changes when it’s clock input receives a pulse.

35
Q

IC

A

An electrical circuit having many components in a single package

36
Q

Inverter

A

Also called a NOT gate. A logic gate that changes it’s input logic level to the opposite state

37
Q

Logic Gate

A

An electrical circuit that performs a Boolean algebraic function

38
Q

OR Gate

A

Digital circuit that implements the OR operation.

39
Q

Schottky TTL

A

TTL subfamily that uses the basic TTL standard circuit except that it uses a Schottky barrier code connected between the base a d the collector of each transistor for faster switching

40
Q

Sequential Logic

A

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

41
Q

Small Outline IC

A

Dual-inline style surface-mount IC package

42
Q

Transistor-Transistor (TTL)

A

A family of digital logic devices whose basic element is the bipolar junction transistor.

43
Q

Truth Table

A

A list of all possible input values to a digital circuit, listed in ascending binary order, and the output response for each input combination

44
Q

Binary Number System

A

A number system used extensively in digital systems, based on the number 2

45
Q

Boolean Algebra

A

Algebraic process used as a tool in the design and analysis of digital systems.

46
Q

Boolean theorems

A

Rules that can be applied to Boolean algebra to simplify logic expressions

47
Q

Boolean Variable

A

A variable having two possible values

48
Q

Combinational Logic

A

Digital Circuitry in which an output is derived from the combination of inputs, independent of the order in which they are applied

49
Q

Least Significant Bit (LSB)

A

The rightmost bit of a binary number.

50
Q

Logic Circuit

A

Any circuit that behaves according to a set of logic rules

51
Q

Logic Diagram

A

A diagram, similar to a schematic, showing the connection of logic gates

52
Q

Most Significant Bit (MSB)

A

The leftmost but in a binary number

53
Q

Product-Of-Sums

A

A type of Boolean expression where several sum terms are multiplied together

54
Q

Sum-of-Products

A

A type of Boolean expression where several product terms are summed together

55
Q

Don’t Care Condition

A

Situation when a circuit’s output level for a given set of input conditions can be assigned as either a 1 or 0

56
Q

K Map

A

A graphical tool for finding the maximum SOP and POS simplification of a Boolean expression.

57
Q

NAND Gate

A

Logic circuit that operates like an AND gate followed by and inverter.

58
Q

NOR Gate

A

Logic circuit that operates like an OR gate followed by an inverter

59
Q

Common Anode Display

A

A seven-segment LED display where the anodes of all LEDs are connected to the circuit supply voltage

60
Q

Common Cathode Display

A

A seven-segment display in which the cathodes of all the LEDs are connected together and grounded

61
Q

Design Specifications

A

A detailed description, especially one providing information needed to make, build, or produce something

Digital Electronics (3 decks)

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