ELE 106 Digital Electronics Week1A Introduction

Fill-in-the-blank flashcards covering key concepts from ELE 106 Week1A Introduction notes.

Analog quantities vary __.

continuously

Digital systems can only assign __ values to each point.

discrete

A typical CD player converts digital data from the CD drive to an __ signal for amplification.

analog

In binary, a single number is called a __.

bit

A bit can have the value of either a 0 or a 1, depending on if the voltage is HIGH or __.

LOW

Digital waveforms are made up of a series of __.

pulses

A positive-going pulse goes from normally __ to HIGH and then back.

LOW

A negative-going pulse is one that goes from HIGH to a __ level.

LOW

A pulse parameter describing height is the __.

amplitude

The symbol tW represents the __ of a pulse.

width

Duty cycle is the ratio of __ to T.

tW

The period is the inverse of the __.

frequency

A timing diagram shows the relationship between two or more digital __.

waveforms

Data can be transmitted by serial transfer or __ transfer.

parallel

In serial transmission, bits are sent one after another; in parallel, they are sent __.

simultaneously

The logic function true only if all inputs are true is __.

AND

The logic function true if one or more inputs are true is __.

OR

The logic operation that inverts its input is __.

NOT

A device that adds two binary numbers and outputs a sum is an __.

adder

The symbol 'Σ' represents the __ (sum) in binary addition.

sum

A device that compares two binary numbers and outputs A < B, A = B, or A > B is a __.

comparator

A device that takes a binary input and activates a 7-segment display is a __.

decoder

A device that converts multiple input lines into a binary code is an __.

encoder

A device that selects one of several input data lines and forwards it to a single output is a __.

multiplexer

A device that routes a single input to several outputs is a __.

demultiplexer

A counter outputs a binary code that represents the number of incoming pulses; this is a __ code.

binary

A storage function that moves data with each clock is a __.

shift register

DIP stands for __.

Dual-In-Line Package

SOIC stands for __.

Small Outline Integrated Circuit

SMT stands for __.

Surface-Mount Technology

SMD stands for __.

Surface-Mount Device

Programmable logic devices are an alternative to fixed-function devices; the logic is __.

programmable

A PAL device uses programmable AND array and a fixed __ array.

OR

FPGAs can be reprogrammed after manufacturing; this distinguishes them from __ ICs.

ASICs

The dominant SRAM-based FPGAs can be __ (reprogrammed).

reprogrammed

FPGAs are built around a matrix of configurable logic blocks (CLBs) connected via __ interconnects.

programmable