SN55LBC175

QUADRUPLE LOW-POWER DIFFERENTIAL LINE RECEIVER

SGLS083A – MARCH 1995 – REVISED JUNE 2000

1

POST OFFICE BOX 655303

RS-485, and CCITT V.11

as Short as 20 ns

Long Bus Lines in Noisy Environments

– 7 V to 12 V

description

The SN55LBC175 is a monolithic quadruple

differential line receiver with 3-state outputs and is

designed to meet the requirements of the EIA

Standards RS-422-A, RS-423-A, RS-485, and

CCITT V.11. This device is optimized for balanced

multipoint bus transmission at data rates up to and

exceeding 10 million bits per second. The

receivers are enabled in pairs with an active-high

enable input. Each differential receiver input

features

high

impedance,

hysteresis

for

increased noise immunity, and sensitivity of

±200

mV over a common-mode input voltage range of

12 V to –7 V. Fail-safe design ensures that if the

inputs are open-circuited, the outputs are always

high. This device is designed using the Texas

Instruments proprietary LinBiCMOS

™ technology

allowing low power consumption, high switching

speeds, and robustness.

This device offers optimum performance when used with the SN55LBC174 quadruple line driver. The

SN55LBC175 is available in the 16-pin CDIP (J) package, a 16-pin CPAK (W) package, or a 20-pin LCCC (FK)

package.

The SN55LBC175 is characterized over the military temperature range of – 55

°C to 125°C.

FUNCTION TABLE

(each receiver)

DIFFERENTIAL INPUTS

A–B

ENABLE

OUTPUT

Y

VID ≥ 0.2 V

H

H

– 0.2 V < VID < 0.2 V

H

?

VID ≤ – 0.2 V

H

L

X

L

Z

Open circuit

H

H

H = high level,

L = low level,

X = irrelevant,

Z = high impedance (off),

? = indeterminate

Copyright

© 2000, 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.

LinBiCMOS is a trademark of Texas Instruments.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1B

1A

1Y

1, 2EN

2Y

2A

2B

GND

4B

4A

4Y

3, 4EN

3Y

3A

3B

J OR W PACKAGE

(TOP VIEW)

NC – No internal connection

FK PACKAGE

(TOP VIEW)

19

20

1

32

17

18

16

15

14

13

12

11

9

10

5

4

6

7

8

4A

4Y

NC

3, 4EN

3Y

1Y

1, 2EN

NC

2Y

2A