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SLLS376D− MAY 2000 − REVISED JULY 2008

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251−1443

D Designed for Signaling Rates

†

Up to 30

Mbps

D Bus-Pin ESD Protection Exceeds 12 kV

HBM

D Compatible With ANSI Standard

TIA/EIA-485-A and ISO 8482:1987(E)

D Low Skew

D Designed for Multipoint Transmission on

Long Bus Lines in Noisy Environments

D Very Low Disabled Supply-Current

Requirements . . . 700 µA Maximum

D Common Mode Voltage Range of −7 V

to 12 V

D Thermal-Shutdown Protection

D Driver Positive and Negative Current

Limiting

D Open-Circuit Failsafe Receiver Design

D Receiver Input Sensitivity...±200 mV Max

D Receiver Input Hysteresis . . . 50 mV Typ

D Glitch-Free Power-Up and Power-Down

Protection

D Available in Q-Temp Automotive

High Reliability Automotive Applications

Configuration Control / Print Support

Qualification to Automotive Standards

description

The SN65LBC176A, SN65LBC176AQ, and

SN75LBC176A differential bus transceivers are

monolithic, integrated circuits designed for

bidirectional data communication on multipoint

bus-transmission lines. They are designed for

balanced transmission lines and are compatible

with ANSI standard TIA/EIA-485-A and ISO 8482.

The A version offers improved switching perfor-

mance over its predecessors without sacrificing

significantly more power.

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.

†

Signaling rate by TIA/EIA-485-A definition restrict transition times to 30% of the bit duration, and much higher signaling rates may be achieved

using a different criteria (see TYPICAL CHARACTERISTICS section).

GND

SN65LBC176AQD (Marked as B176AQ)

SN65LBC176AD (Marked as BL176A)

SN65LBC176AP (Marked as 65LBC176A)

SN75LBC176AD (Marked as LB176A)

SN75LBC176AP (Marked as 75LBC176A)

(TOP VIEW)

INPUT

Open

ENABLE

OUTPUTS

A B

H L

L H

Z Z

H L

DRIVER

DIFFERENTIAL INPUTS

−V

≥ 0.2 V

−0.2 V < V

< 0.2 V

≤ −0.2 V

Open

ENABLE

OUTPUT

RECEIVER

high

level,

low

level,

indeterminate,

irrelevant,

high

impedance

(off)

Function Tables

Bus

logic diagram (positive logic)

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Summary of content (20 pages)

PAGE 1
SLLS376D− MAY 2000 − REVISED JULY 2008 D Designed for Signaling Rates† Up to 30 D D D D D D D D D D D D D SN65LBC176AQD (Marked as B176AQ) SN65LBC176AD (Marked as BL176A) SN65LBC176AP (Marked as 65LBC176A) SN75LBC176AD (Marked as LB176A) SN75LBC176AP (Marked as 75LBC176A) (TOP VIEW) Mbps Bus-Pin ESD Protection Exceeds 12 kV HBM Compatible With ANSI Standard TIA/EIA-485-A and ISO 8482:1987(E) Low Skew Designed for Multipoint Transmission on Long Bus
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SLLS376D− MAY 2000 − REVISED JULY 2008 description (continued) The SN65LBC176A, SN65LBC176AQ, and SN75LBC176A combine a 3-state, differential line driver and a differential input line receiver, both of which operate from a single 5-V power supply. The driver and receiver have active-high and active-low enables, respectively, which can externally connect together to function as a direction control.
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SLLS376D− MAY 2000 − REVISED JULY 2008 absolute maximum ratings† Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6 V Voltage range at any bus terminal (A or B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −10 V to 15 V Input voltage, VI (D, DE, R, or RE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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SLLS376D− MAY 2000 − REVISED JULY 2008 driver electrical characteristics over recommended operating conditions (unless otherwise noted) PARAMETER VIK Input clamp voltage TEST CONDITIONS II = − 18 mA SN65LBC176AQ IO = 0 | VOD | Differential output voltage TYP† −1.5 −0.8 1.5 4 SN65LBC176A, SN75LBC176A See Figure 1 Vtest = − 7 V to 12 V, See Figure 2 6 1.5 3 SN75LBC176A 1.1 1.5 3 SN65LBC176AQ 0.9 1.5 6 SN65LBC176A 1 1.
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SLLS376D− MAY 2000 − REVISED JULY 2008 receiver electrical characteristics over recommended operating conditions (unless otherwise noted) PARAMETER VIT + Positive-going input threshold voltage VIT − Negative-going input threshold voltage TEST CONDITIONS −0.
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SLLS376D− MAY 2000 − REVISED JULY 2008 PARAMETER MEASUREMENT INFORMATION Vtest R1 375 Ω Y 27 Ω VOD 0 or 3 V D RL = 60 Ω 0 V or 3 V VOD 27 Ω VOC Z Figure 1. Driver VOD and VOC R2 375 Ω −7 V < Vtest < 12 V Vtest Figure 2. Driver VOD3 3V Input Generator (see Note A) 50 Ω RL = 54 Ω CL = 50 pF (see Note B) VO 1.5 V 1.5 V 0V tPLH Output TEST CIRCUIT tPHL 90% 50% ≈ 1.5 V 10% ≈ − 1.5 V tr tf VOLTAGE WAVEFORMS NOTES: A.
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SLLS376D− MAY 2000 − REVISED JULY 2008 PARAMETER MEASUREMENT INFORMATION 5V S1 0V Generator (see Note A) 3V Input RL = 110 Ω 1.5 V 1.5 V 0V tPZL Output tPLZ CL = 50 pF (see Note B) 50 Ω 5V 0.5 V 2.3 V Output VOL TEST CIRCUIT VOLTAGE WAVEFORMS NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, 50% duty cycle, tr ≤ 6 ns, tf ≤ 6 ns, ZO = 50 Ω. B. CL includes probe and jig capacitance.
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SLLS376D− MAY 2000 − REVISED JULY 2008 PARAMETER MEASUREMENT INFORMATION S1 1.5 V 2 kΩ −1.5 V S2 5V CL = 10 pF (see Note B) Generator (see Note A) 5 kΩ 50 Ω S3 TEST CIRCUIT Input 1.5 V 3V S1 to 1.5 V S2 Open S3 Closed 0V Input 1.5 V tPZH 3V S1 to −1.5 V S2 Closed S3 Open 0V tPZL VOH ≈ 4.5 V 1.5 V Output Output 1.5 V 0V VOL 1.5 V Input 3V S1 to 1.5 V S2 Closed S3 Closed 0V Input tPHZ 3V S1 to −1.
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SLLS376D− MAY 2000 − REVISED JULY 2008 TYPICAL CHARACTERISTICS Receiver Output Driver Input 120 Ω 120 Ω Driver Input Receiver Output Figure 9.
PAGE 10
SLLS376D− MAY 2000 − REVISED JULY 2008 TYPICAL CHARACTERISTICS RMS SUPPLY CURRENT vs FREQUENCY LOGIC INPUT CURRENT vs INPUT VOLTAGE 40 −30 TA = 25°C, VCC = 5 V Driver 35 I I − Input Current − µ A I CC − RMS Supply Current − mA −25 30 TA = 25°C, VCC = 5 V, 50% Duty Cycle Square Wave 25 20 15 10 −20 −15 −10 Receiver −5 5 0 0.05 0.
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SLLS376D− MAY 2000 − REVISED JULY 2008 TYPICAL CHARACTERISTICS DRIVER HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs CASE TEMPERATURE 5 VOD − Average Differential Output Voltage − V 2 VOH − High-Level Output Voltage − V 4.5 4 VCC = 5.25 V 3.5 3 2.5 VCC = 5 V 2 VCC = 4.75 V 1.5 TA = 25°C 1 0.5 0 1.5 VCC = 5 V, RL = 54 Ω, VIH = 3 V 1 0.
PAGE 12
SLLS376D− MAY 2000 − REVISED JULY 2008 TYPICAL CHARACTERISTICS DRIVER OUTPUT CURRENT vs SUPPLY VOLTAGE 90 TA = 25°C, VOH = ?, VOL = ? I O − Output Current − mA 65 40 15 IOH −10 −35 −60 −85 IOL −110 −135 −160 −185 −210 0 3 5 4 VCC − Supply Voltage − V 6 Figure 18 12 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 •
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 23-May-2012 OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined.
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PACKAGE MATERIALS INFORMATION www.ti.com 12-Oct-2010 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 SN65LBC176ADR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 SN65LBC176AQDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 SN75LBC176ADR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 12-Oct-2010 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN65LBC176ADR SOIC D 8 2500 340.5 338.1 20.6 SN65LBC176AQDR SOIC D 8 2500 340.5 338.1 20.6 SN75LBC176ADR SOIC D 8 2500 340.5 338.1 20.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.