SN55LBC175| Datasheet

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SN55LBC175 QUADRUPLE LOW-POWER DIFFERENTIAL LINE RECEIVER
SGLS083A MARCH 1995 REVISED JUNE 2000

D D D D D D D

Meets EIA Standards RS-422-A, RS-423-A, RS-485, and CCITT V.11 Designed to Operate With Pulse Durations as Short as 20 ns Designed for Multipoint Transmission on Long Bus Lines in Noisy Environments Input Sensitivity . . . 200 mV Low-Power Consumption . . . 20 mA Max Open-Circuit Fail-Safe Design Common-Mode Input Voltage Range of 7 V to 12 V

J OR W PACKAGE (TOP VIEW)

1B 1A 1Y 1, 2EN 2Y 2A 2B GND

1 2 3 4 5 6 7 8

16 15 14 13 12 11 10 9

VCC 4B 4A 4Y 3, 4EN 3Y 3A 3B

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 LinBiCMOSTM technology allowing low power consumption, high switching speeds, and robustness.

FK PACKAGE (TOP VIEW)

1Y 1, 2EN NC 2Y 2A

VCC 4B
20 19 18 4A 17 4Y 16 NC 15 3, 4EN 14 3Y

4 5 6 7 8 9 10 11 12 13

NC No internal connection

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 VID 0.2 V 0.2 V < VID < 0.2 V VID 0.2 V X Open circuit ENABLE H H H L H OUTPUT Y H ? L Z H

H = high level, L = low level, X = irrelevant, Z = high impedance (off), ? = indeterminate 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.
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.

POST OFFICE BOX 655303

DALLAS, TEXAS 75265

GND