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ꢋ ꢌꢉꢍꢎ ꢌꢏꢄ ꢐ ꢎꢀ ꢑꢒꢓ ꢃ ꢍꢔ ꢕꢕ ꢐꢎ ꢐꢁꢖ ꢔꢉ ꢄ ꢄ ꢔꢁꢐ ꢎꢐ ꢆꢐ ꢔ ꢗꢐ ꢎ ꢀ
SLLS455B − NOVEMBER 2000 − REVISED MARCH 2005
SN65LBC175A (Marked as 65LBC175A)
SN75LBC175A (Marked as 75LBC175A)
D or N PACKAGE
D
Designed for TIA/EIA-485, TIA/EIA-422, and
ISO 8482 Applications
1
D
Signaling Rate Exceeding 50 Mbps
(TOP VIEW)
D
Fail-Safe in Bus Short-Circuit, Open-Circuit,
and Idle-Bus Conditions
1B
1A
V
CC
4B
1
2
3
4
5
6
7
8
16
15
14
13
12
11
D
D
D
D
D
ESD Protection on Bus Inputs
Exceeds 6 kV
1Y
4A
1,2EN
2Y
4Y
Common-Mode Bus Input Range
–7 V to 12 V
3,4EN
3Y
2A
Propagation Delay Times <16 ns
2B
10 3A
3B
GND
9
Low Standby Power Consumption <20 µA
Pin-Compatible Upgrade for MC3486,
DS96F175, LTC489, and SN75175
logic diagram
1,2EN
description
1A
1B
The SN65LBC175A and SN75LBC175A are
1Y
2Y
quadruple differential line receivers with 3-state
outputs, designed for TIA/EIA-485 (RS-485),
TIA/EIA-422 (RS-422), and ISO 8482 (Euro
RS-485) applications.
2A
2B
These devices are optimized for balanced
multipoint bus communication at data rates up to
and exceeding 50 million bits per second. The
transmission media may be twisted-pair cables,
printed-circuit board traces, or backplanes. The
ultimate rate and distance of data transfer is
dependent upon the attenuation characteristics of
the media and the noise coupling to the
environment.
3,4EN
3A
3B
3Y
4Y
4A
4B
Each receiver operates over a wide range of positive and negative common-mode input voltages, and features
ESD protection to 6 kV, making it suitable for high-speed multipoint data transmission applications in harsh
environments. These devices are designed using LinBiCMOSt, facilitating low power consumption and
inherent robustness.
Two EN inputs provide pair-wise enable control, or these can be tied together externally to enable all four drivers
with the same signal.
The SN75LBC175A is characterized for operation over the temperature range of 0°C to 70°C. The
SN65LBC175A is characterized over the temperature range from −40°C to 85°C.
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
The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).
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Copyright 2001, Texas Instruments Incorporated
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