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Digital Electronics > Semester 1 Final > Flashcards

Semester 1 Final Flashcards

(61 cards)

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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
Period
The amount of time required for one complete cycle of a periodic event or waveform
26
Resistance
Opposition to current
27
Series circuit
One that has only one current path
28
555 Timer
TTL-Compatible IC that can be wired to operate in several different modes
29
AND Gate
Digital circuit that implements the AND operation. The output of this circuit is high only if all of its inputs are high.
30
Boolean Expression
An algebraic expression made up of Boolean variables and operators.
31
Clocked D Flip-Flops
Type of flip-flop in which the D input is the synchronous input
32
Combinational Logic
Digital circuitry in which an output is derived from the combination of inputs, independent of the order in which they are applied
33
Datasheet
A printed specification giving details of the pin configuration, electrical properties, and a mechanical profile if an electric device
34
Flip-Flop
A sequential circuit based on a latch whose output changes when it's clock input receives a pulse.
35
IC
An electrical circuit having many components in a single package
36
Inverter
Also called a NOT gate. A logic gate that changes it's input logic level to the opposite state
37
Logic Gate
An electrical circuit that performs a Boolean algebraic function
38
OR Gate
Digital circuit that implements the OR operation.
39
Schottky TTL
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
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
41
Small Outline IC
Dual-inline style surface-mount IC package
42
Transistor-Transistor (TTL)
A family of digital logic devices whose basic element is the bipolar junction transistor.
43
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
44
Binary Number System
A number system used extensively in digital systems, based on the number 2
45
Boolean Algebra
Algebraic process used as a tool in the design and analysis of digital systems.
46
Boolean theorems
Rules that can be applied to Boolean algebra to simplify logic expressions
47
Boolean Variable
A variable having two possible values
48
Combinational Logic
Digital Circuitry in which an output is derived from the combination of inputs, independent of the order in which they are applied
49
Least Significant Bit (LSB)
The rightmost bit of a binary number.
50
Logic Circuit
Any circuit that behaves according to a set of logic rules
51
Logic Diagram
A diagram, similar to a schematic, showing the connection of logic gates
52
Most Significant Bit (MSB)
The leftmost but in a binary number
53
Product-Of-Sums
A type of Boolean expression where several sum terms are multiplied together
54
Sum-of-Products
A type of Boolean expression where several product terms are summed together
55
Don't Care Condition
Situation when a circuit's output level for a given set of input conditions can be assigned as either a 1 or 0
56
K Map
A graphical tool for finding the maximum SOP and POS simplification of a Boolean expression.
57
NAND Gate
Logic circuit that operates like an AND gate followed by and inverter.
58
NOR Gate
Logic circuit that operates like an OR gate followed by an inverter
59
Common Anode Display
A seven-segment LED display where the anodes of all LEDs are connected to the circuit supply voltage
60
Common Cathode Display
A seven-segment display in which the cathodes of all the LEDs are connected together and grounded
61
Design Specifications
A detailed description, especially one providing information needed to make, build, or produce something

Digital Electronics (3 decks)

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