SN75ALS197

QUADRUPLE DIFFERENTIAL LINE RECEIVER

SLLS045B – JANUARY 1989 – REVISED MAY 1995

1

POST OFFICE BOX 655303

Recommendations V.10, V.11, X.26, and

X.27

on Long Bus Lines in Noisy Environments

– 7 V to 7 V

35 mA Max

Compared to AM26LS32A

description

The SN75ALSI97 is a monolithic, quadruple line receiver with 3-state outputs designed using advanced,

low-power, Schottky technology. This technology provides combined improvements in bar design, tooling

production, and wafer fabrication. This, in turn, provides significantly lower power requirements and permits

much higher data throughput than other designs. The device meets the specifications of ITU Recommendations

V.10, V.11, X.26, and X.27. It features 3-state outputs that permit direct connection to a bus-organized system

with a fail-safe design that ensures the outputs will always be high if the inputs are open.

The device is optimized for balanced, multipoint bus transmission at rates up to 20 megabits per second. The

input features high-input impedance, input hysteresis for increased noise immunity, and an input sensitivity of

±300 mV over a common-mode input voltage range of –7 V to 7 V. It also features active-high and active-low

enable functions that are common to the four channels. The SN75ALS197 is designed for optimum performance

when used with the SN75ALS192 quadruple differential line driver.

The SN75ALS197 is characterized for operation from 0

°C to 70°C.

FUNCTION TABLE

(each receiver)

DIFFERENTIAL INPUTS

ENABLES

OUTPUT

A–B

G

G

Y

VID ≥ 0.3 V

H

X

X

L

H

H

– 0.3 V < VID < 0.3 V

H

X

X

L

?

?

VID ≤ – 0.3 V

H

X

X

L

L

L

X

L

HZ

Open

H

X

X

L

H

H

H = high level, L = low level, X = irrelevant, ? = indeterminate,

Z = high impedance (off)

Copyright

© 1995, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

D OR N PACKAGE

(TOP VIEW)

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1B

1A

1Y

G

2Y

2A

2B

GND

4B

4A

4Y

G

3Y

3A

3B