SN65LBC175, SN75LBC175
QUADRUPLE LOW-POWER DIFFERENTIAL LINE RECEIVERS
SLLS171C – OCTOBER 1993 – REVISED APRIL 2000
Meet or Exceed the EIA Standards
RS-422-A, RS-423-A, RS-485, and CCITT
Recommendation V.11
D OR N PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
1B
1A
Designed to Operate With Pulse Durations
as Short as 20 ns
CC
4B
4A
1Y
Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
4Y
1,2EN
2Y
3,4EN
3Y
Input Sensitivity . . . ±200 mV
2A
Low-Power Consumption . . . 20 mA Max
Open-Circuit Fail-Safe Design
3A
2B
3B
GND
Common-Mode Input Voltage Range of
–7 V to 12 V
†
logic symbol
Pin Compatible With SN75175 and MC3486
4
EN
1,2EN
description
2
1
6
7
3
5
1A
1B
2A
2B
The SN65LBC175 and SN75LBC175 are
monolithic, quadruple, differential line receivers
with 3-state outputs and are designed to meet the
requirements of the EIA standards RS-422-A,
RS-423-A, RS-485, andCCITTRecommendation
V.11. The devices are optimized for balanced
multipointbustransmissionatdataratesuptoand
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. The fail-safe design ensures
that when the inputs are open-circuited, the
outputs are always high. Both devices are
designed using the TI proprietary LinBiCMOS
technology allowing low power consumption, high
switching speeds, and robustness.
1Y
2Y
12
EN
3,4EN
10
9
11
13
3A
3B
4A
4B
3Y
4Y
14
15
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
logic diagram (positive logic)
4
1,2EN
These devices offer optimum performance when
used with the SN75LBC172 or SN75LBC174
quadruple line drivers. The SN65LBC175 and
SN75LBC175 are available in the 16-pin DIP (N)
2
1A
3
5
1
1Y
2Y
1B
6
2A
and small-outline inline circuit (SOIC)
packages.
D
7
2B
The SN65LBC175 is characterized over the
industrial temperature range of –40°C to 85°C.
The SN75LBC175 is characterized for operation
over the commercial temperature range of 0°C
to 70°C.
12
3,4EN
10
3A
9
11
13
3Y
4Y
3B
14
4A
15
4B
LinBiCMOS is a trademark of Texas Instruments Incorporated.
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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265