SN65LBC174A-EP Datasheet, PDF (1/19 Pages) Texas Instruments – QUADRUPLE RS-485 DIFFERENTIAL LINE DRIVER

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SN65LBC174A-EP
QUADRUPLE RS-485 DIFFERENTIAL LINE DRIVER
SLLS732 – OCTOBER 2006 – REVISED DECEMBER 2006
FEATURES
• Controlled Baseline
– One Assembly/Test Site, One Fabrication
Site
• Extended Temperature Performance of –55°C
to 125°C
• Enhanced Diminishing Manufacturing Sources
(DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree ⁽¹⁾
• Designed for TIA/EIA-485, TIA/EIA-422, and
ISO 8482 Applications
• Signaling Rates up to 30 Mbps ⁽²⁾
• Propagation Delay Times <11 ns
• Low Standby Power Consumption 1.5 mA Max
• Output ESD Protection Exceeds 13 kV
• Driver Positive- and Negative-Current Limiting
• Power-Up and Power-Down Glitch Free for
Line-Insertion Applications
• Thermal Shutdown Protection
• Industry Standard Pinout, Compatible With
SN75174, MC3487, DS96174, LTC487, and
MAX3042
(1) Component qualification in accordance with JEDEC and
industry standards to ensure reliable operation over an
extended temperature range. This includes, but is not limited
to, Highly Accelerated Stress Test (HAST) or biased 85/85,
temperature cycle, autoclave or unbiased HAST,
electromigration, bond intermetallic life, and mold compound
life. Such qualification testing should not be viewed as
justifying use of this component beyond specified
performance and environmental limits.
(2) The signaling rate of a line is the number of voltage
transitions that are made per second, expressed in the unit
bits per second (bps).
1A
1Y
NC
1Z
1,2EN
2Z
NC
2Y
2A
GND
20-PIN DW PACKAGE
(TOP VIEW)
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
V_CC
4A
4Y
NC
4Z
3,4EN
3Z
NC
3Y
3A
logic diagram (positive logic)
1A ¹
1,2EN ⁵
2A ⁹
2 _1Y
4 _1Z
8 _2Y
6 _2Z
3A ¹¹
3,4EN ¹⁵
4A ¹⁹
12 _3Y
14 _3Z
18 _4Y
16 _4Z
DESCRIPTION/ORDERING INFORMATION
The SN65LBC174A-EP is a quadruple differential line driver with 3-state outputs, designed for TIA/EIA-485
(RS-485), TIA/EIA-422 (RS-422), and ISO 8482 applications.
This device is optimized for balanced multipoint bus transmission at signaling rates up to 30-million bits per
second (Mbps). The transmission media may be printed-circuit-board traces, backplanes, or cables. The ultimate
rate and distance of data transfer is dependent upon the attenuation characteristics of the media and the noise
coupling to the environment.
Each driver features current limiting and thermal-shutdown circuitry, making it suitable for high-speed multipoint
applications in noisy environments. The device is designed using LinBiCMOS™ technology, facilitating low
power consumption and robustness.
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated