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IBM Series 1 User Manual page 84

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o

(;

o

need

not

be

conditioned

if

the

receiver

always

satisfies the conditioned inactive

unit

load

current

for

a

test

condition

of

from 0 to 0.45 volts.

See

"Receiver Conditioning"

sUbsection

that

follows

for

further explanation of conditioning.

*3.

The general unit load current may be

computed

at

any

other

test

condition

voltage

by

linear extrapolation

using the tvo points given.

Voltage

Le~12

and

Switching Characteristics.

The driver

voltage levels

given

are

the

minimum

and

maximum

output

levels

for the driver circuits as seen at the module output

pins.

The

receiver switching levels given are as seen at the

module pins and include de noise tolerance.

Receiver switching

Driver voltage levels

characteristics

r

1

,

J

I BON-

I

J

I

I

lLEVELS

I

SCHOTTKY llCHOTTKY

1

1 LEVEL

INPUT

1

I MPUL

I

5.50V

I

5.5V

I

1

PtPUL

S.5V

t

I LPUL

I 2.40V

J

2.4V

I

J

LPUL

2.0V

I

I

rIPDL

I 0.45V

I

0.6V

I

J MPDL

0.8V

J

I LPDL

I 0.0 V

I

o.OV

I

I

LPDL

c.ov

I

L

,

1..

Processor I/O Channel

2-69

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