DE 1.2 Flashcards

1
Q

The instantaneous voltage of a waveform. Often used to mean maximum amplitude, or peak voltage, or a pulse.

A

Amplitude

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2
Q

An algebraic expression made up of Boolean variables and operators, such as AND (-), OR (+), or NOT (-). Also referred to as Boolean function or a logic function.

A

Boolean Expression

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3
Q

Type of flip-flop in which the D (data) input is the synchronous input.

A

Clocked D Flip-Flop

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4
Q

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

A

Digital Waveform

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5
Q

One style of integrated circuit package which has two rows of lead.

A

Dual In-Line Package (DIP)

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6
Q

Fraction of the total period that a digital waveform is in the HIGH state. DC = th/T (often expressed as a percentage: %DC = th/Tx100%).

A

Duty Cycle (DC)

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7
Q

The part of a pulse where the logic level is in transition from a HIGH to a LOW.

A

Falling Edge

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8
Q

A sequential circuit based on a latch whose output changes when its CLOCK input receives a pulse.

A

Flip-Flop

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9
Q

The number of cycles per unit time of a periodic waveform.

A

Frequency

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10
Q

Unit of frequency. One hertz equals one cycle per second.

A

Hertz (Hz)

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11
Q

An electronic circuit having many components, such as transistors, diodes, resistors, and capacitors, in a single package.

A

Integrated Circuit (IC)

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12
Q

Also called a NOT gate or an inverting buffer. A logic gate that changes its input logic level to the opposite state.

A

Inverter

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13
Q

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

A

Logic Diagram

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14
Q

A piece of test equipment used to view and measure a variety of different waveforms.

A

Oscilloscope

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15
Q

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

A

Period

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16
Q

Delay from the time a signal is applied to the time when the output makes its change.

A

Propagation Delays (tPLH/tPHL)

17
Q

A technique of entering CPLD design information by using a CAD (computer aided design) tool to draw a logic circuit as a schematic. The schematic can then be interpreted by design software to generate programming information for the CPLD.

A

Schematic Entry

18
Q

One in which amplitude varies in proportion to the sine function of an angle.

A

Sine Wave

19
Q

An almost instantaneous rise and decay of voltage or current in a periodic pattern with time and with a constant peak value.

A

Square Wave

20
Q

TTL-compatible IC that can be wired to operate in several different modes, such as a one-shot and an astable multivibrator.

A

555 Timer