Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsInterface ICsInterface IC - receivers RS422, RS485 0/4 PDIP 16

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SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D Designed for TIA/EIA-485, TIA/EIA-422, and

ISO 8482 Applications

D Signaling Rate

†

Exceeding 50 Mbps

D Fail-Safe in Bus Short-Circuit, Open-Circuit,

and Idle-Bus Conditions

D ESD Protection on Bus Inputs

Exceeds 6 kV

D Common-Mode Bus Input Range

–7 V to 12 V

D Propagation Delay Times <16 ns

D Low Standby Power Consumption <20 µA

D Pin-Compatible Upgrade for AM26LS32,

DS96F173, LTC488, and SN75173

description

The SN65LBC173A and SN75LBC173A are

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.

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.

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

robustness.

The G and G

inputs provide enable control logic for either positive- or negative-logic enabling all four drivers.

When disabled or powered off, the receiver inputs present a high-impedance to the bus for reduced system

The SN75LBC173A is characterized for operation over the temperature range of 0°C to 70°C. The

SN65LBC173A is characterized over the temperature range from −40°C to 85°C.

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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.

†

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).

GND

logic diagram

SN65LBC173A (Marked as 65LBC173A)

SN75LBC173A (Marked as 75LBC173A)

D or N PACKAGE

(TOP VIEW)

Summary of content (16 pages)

PAGE 1
SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005 D Designed for TIA/EIA-485, TIA/EIA-422, and D D D D D D D ISO 8482 Applications Signaling Rate† Exceeding 50 Mbps Fail-Safe in Bus Short-Circuit, Open-Circuit, and Idle-Bus Conditions ESD Protection on Bus Inputs Exceeds 6 kV Common-Mode Bus Input Range –7 V to 12 V Propagation Delay Times <16 ns Low Standby Power Consumption <20 µA Pin-Compatible Upgrade for AM26LS32, DS96F173, LTC488, and SN75173
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SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005 FUNCTION TABLE (each receiver) ENABLES DIFFERENTIAL INPUTS A – B (VID) G G H X X L H X X L H X X L L H OPEN OPEN H X X L H X VID ≤ −0.2 V −0.2 V < VID < −0.01 V −0.
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SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6 V Voltage range at any bus input (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005 electrical characteristics over recommended operating conditions PARAMETER TEST CONDITIONS VIT+ VIT− Positive-going differential input voltage threshold VHYS VIK Hysteresis voltage (VIT+ − VIT−) VOH High-level output voltage Negative-going differential input voltage threshold −7 V ≤ VCM ≤ 12 V (VCM = (VA + VB )/2) TYP† MAX −80 −10 −200 −120 II = −18 mA VID = 200 mV, IOH = −8 mA −1.
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SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005 PARAMETER MEASUREMENT INFORMATION VA IO VID VB VO Figure 1. Voltage and Current Definitions 50 Ω Generator Input B A 3V 1.5 V Y 1.5 V Input A B 0V tPLH CL = 15 pF (Includes Probe and Jig Capacitance) 50 Ω Generator tPHL 1.5 V Output Y 90% 10% tr VOH 90% 10% VOL tf Generators: PRR = 1 MHz, 50% Duty Cycle, tr <6 ns, Zo = 50 Ω Figure 2.
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SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005 PARAMETER MEASUREMENT INFORMATION VCC A −1.5 V Y 1 kΩ B CL = 15 pF (Includes Probe and Jig Capacitance) 3V G 1.5 V 1.5 V 0V tPLZ tPZL G Generator 50 Ω VCC G Y 1.5 V VCC VOL + 0.5 V VOL Generators: PRR = 1 MHz, 50% Duty Cycle, tr <6 ns, Zo = 50 Ω Figure 4. Test Circuit Waveforms, tPZL and tPLZ 100 Ω VTEST 0V Pulse Generator, 15 µs Duration, 1% Duty Cycle 15 µs 1.5 ms Figure 5.
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SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005 TYPICAL CHARACTERISTICS BUS INPUT CURRENT vs BUS INPUT VOLTAGE OUTPUT VOLTAGE vs DIFFERENTIAL INPUT VOLTAGE 800 6 VCC = 5 V TA = 25°C 600 5 400 VO − Output Voltage − V Bus Input Current −µ A VCC = 0 V VCC = 5 V 200 0 −200 VIC = −7 V VIC = 0 V VIC = 12 V 4 VIC = −7 V VIC = 0 V VIC = 12 V 3 2 1 −400 −600 −10 −5 0 5 10 0 −150 15 −100 Bus Input Voltage − V −50 0 50 Differenti
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SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005 TYPICAL CHARACTERISTICS 500 mV A, B −500 mV 20 ns 5V Y 0V Figure 10.
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SLLS456B − NOVEMBER 2000 − REVISED APRIL 2005 APPLICATION INFORMATION TMS320F243 DSP (Controller) SN65LBC174A SN65LBC173A SPISIMO TMS320F241 DSP (Embedded Application) SPISIMO IOPA1 (Enable) SPISTE SPISTE IOPA1 IOPA2 SPICLK SPICLK IOPA2 (Enable) IOPA0 (Handshake /Status) IOPA0 SPISOMI SPISOMI Figure 11.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SN65LBC173ADR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1 SN75LBC173ADR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN65LBC173ADR SOIC D 16 2500 333.2 345.9 28.6 SN75LBC173ADR SOIC D 16 2500 333.2 345.9 28.
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