SN55LBC175_04 Datasheet, PDF (1/12 Pages) Texas Instruments – QUADRUPLE LOW-POWER DIFFERENTIAL LINE RECEIVER

SN55LBC175
QUADRUPLE LOW-POWER DIFFERENTIAL LINE RECEIVER
D Meets EIA Standards RS-422-A, RS-423-A,
RS-485, and CCITT V.11
D Designed to Operate With Pulse Durations
as Short as 20 ns
D Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
D Input Sensitivity . . . ± 200 mV
D Low-Power Consumption . . . 20 mA Max
D Open-Circuit Fail-Safe Design
D Common-Mode Input Voltage Range of
– 7 V to 12 V
SGLS083A – MARCH 1995 – REVISED JUNE 2000
J OR W PACKAGE
(TOP VIEW)
1B 1
1A ²
1Y ³
1, 2EN ⁴
2Y ⁵
2A ⁶
2B ⁷
GND ⁸
16 V_CC
15 4B
14 4A
13 _4Y
12 _{3, 4EN}
11 _3Y
10 _3A
9 _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 LinBiCMOS™ technology
allowing low power consumption, high switching
speeds, and robustness.
FK PACKAGE
(TOP VIEW)
3 2 1 20 19
1Y ₄
18 ^4A
1, 2EN ₅
17 ^4Y
NC ₆
16 ^NC
2Y ₇
15 ^{3, 4EN}
2A ₈
14 ^3Y
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
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
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.
Copyright © 2000, Texas Instruments Incorporated
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