Operating instructions

ManualsBrandsDigiPos ManualsComputer equipmentDS-810

Theory

of

Operation-7B80

Input/Output

Tables

Input/Output

(truth)

tables

are

used

to

show

the

input

combinations

important

to

a

particular

function,

along

with

the

resultant

output

conditions

.

This

table

may

be

given

either

for

an

individual

device or

for

a

complete

logic

stage

.

For

examples

of

input/output

tables

for

individual

devices,

see

Table

3-1

.

NON-DIGITAL

DEVICES

Not

all

of

the

integrated

circuits

in

this

instrument

are

digi-

tal

logic

devices

.

The

function

of

nondigital

devices

is

de-

scribed

individually,

using

operating

waveforms

or

other

techniques

to

illustrate

the

function

.

EXT

TRIG

IN

LEVEL

HOLDOFF

SOURCE

TIME/DIV

ROW

&

COLUMN

DATA

TIME/DIV1

~READOUTJ

SIGNAL

(SWEEPI

OUTPUT

1986-60

3-2

Fig

.

3-1

.

Basic

block

diagram

of

the

7B80

Time-Base

Unit

.