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SN65LBC174, SN75LBC174

QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS

SLLS162D – JULY 1993 – REVISED SEPTEMBER 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Meets or Exceeds the Standard EIA-485

Designed for High-Speed Multipoint

Transmission on Long Bus Lines in Noisy

Environments

Supports Data Rates up to and Exceeding

Ten Million Transfers Per Second

Common-Mode Output Voltage Range of

–7 V to 12 V

Positive- and Negative-Current Limiting

Low Power Consumption . . . 1.5 mA Max

(Output Disabled)

Functionally Interchangeable With SN75174

description

The SN65LBC174 and SN75LBC174 are

monolithic, quadruple, differential line drivers with

3-state outputs. Both devices are designed to

meet the requirements of the Electronics Industry

Association Standard EIA-485. These devices

are optimized for balanced multipoint bus

transmission at data rates up to and exceeding

10 million bits per second. Each driver features

wide positive and negative common-mode output

voltage ranges, current limiting, and thermal-

shutdown protection, making it suitable for

party-line applications in noisy environments.

Both devices are designed using LinBiCMOS,

facilitating ultralow power consumption and

inherent robustness.

Both the SN65LBC174 and SN75LBC174 provide

positive- and negative-current limiting and

thermal shutdown for protection from line fault

conditions on the transmission bus line. These

devices offer optimum performance when used

with the SN75LBC173 or SN75LBC175

quadruple line receivers. The SN65LBC174 and

SN75LBC174 are available in the 16-terminal DIP

package (N) and the 20-terminal wide-body small

outline intergrated circuit (SOIC) package (DW).

The SN75LBC174 is characterized for operation over the commercial temperature range of 0°C to 70°C. The

SN65LBC174 is characterized over the industrial temperature range of –40°C to 85°C.

LinBiCMOS is a trademark of 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.

1,2EN

GND

3,4EN

N PACKAGE

(TOP VIEW)

FUNCTION TABLE

(each driver)

INPUT ENABLE

OUTPUTS

H = high level, L = low level,

X = irrelevant, Z = high impedance (off)

NC – No internal connection

1,2EN

GND

3,4EN

DW PACKAGE

(TOP VIEW)

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.

Summary of content (16 pages)

PAGE 1
SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162D – JULY 1993 – REVISED SEPTEMBER 2003 D D D D D D D N PACKAGE (TOP VIEW) Meets or Exceeds the Standard EIA-485 Designed for High-Speed Multipoint Transmission on Long Bus Lines in Noisy Environments Supports Data Rates up to and Exceeding Ten Million Transfers Per Second Common-Mode Output Voltage Range of – 7 V to 12 V Positive- and Negative-Current Limiting Low Power Consumption . . . 1.
PAGE 2
SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162D – JULY 1993 – REVISED SEPTEMBER 2003 logic symbol† 1, 2EN 1A 2A 3, 4EN 3A 4A 4 logic diagram (positive logic) 1A 2 1 3 6 7 12 2 1 EN 5 3 1Y 1, 2EN 1Z 6 7 2Y 2A 5 2Z 10 9 11 3A 9 11 14 15 13 1Z 4 EN 10 1Y 2Y 2Z 3Y 3Z 12 3Y 3,4EN 3Z 14 15 4A 4Y 13 4Y 4Z 4Z † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
PAGE 3
SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162D – JULY 1993 – REVISED SEPTEMBER 2003 absolute maximum ratings over operating free-air temperature (unless otherwise noted)† Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to 7 V Output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 4
SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162D – JULY 1993 – REVISED SEPTEMBER 2003 electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER VIK TEST CONDITIONS Input clamp voltage MIN TYP† II = – 18 mA |VOD| Differential output voltage‡ ∆|VOD| Change in magnitude of common-mode output voltage§ VOC Common-mode output voltage ∆|VOC| Change in magnitude of common-mode output voltage§
PAGE 5
SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162D – JULY 1993 – REVISED SEPTEMBER 2003 PARAMETER MEASUREMENT INFORMATION RL 2 VOD2 RL 2 VOC Figure 1. Differential and Common-Mode Output Voltages Vtest R1 = 375 Ω Y 0 V or 3 V A RL = 60 Ω VOD Z R2 = 375 Ω EN at 5 V Vtest – 7 V < Vtest < 12 V Figure 2. Driver VOD Test Circuit 3V Input Input Generator (see Note A) 1.5 V 1.5 V RL = 54 Ω CL = 50 pF (see Note B) 50 Ω 0V Output td(OD) td(OD) Output 50% 90% ≈ 2.
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SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162D – JULY 1993 – REVISED SEPTEMBER 2003 PARAMETER MEASUREMENT INFORMATION 1.5 V 0V Input 50 Ω 1.5 V Output 3 V or 0 V Generator (see Note A) 3V Input S1 CL = 50 pF (see Note B) RL = 110 Ω 0.5 V tPZH VOH Output 2.3 V Voff ≈ 0 V tPHZ TEST CIRCUIT VOLTAGE WAVEFORMS Figure 4. tPZH and tPHZ Test Circuit and Waveforms 5V 3V Input RL = 110 Ω S1 1.5 V 1.
PAGE 7
SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162D – JULY 1993 – REVISED SEPTEMBER 2003 TYPICAL CHARACTERISTICS LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT OUTPUT CURRENT vs OUTPUT VOLTAGE 5 50 Output Disabled TA = 25°C ÁÁ ÁÁ ÁÁ 4.5 VOL – Low-Level Output Voltage – V IIO O – Output Current – µ A 40 30 20 10 0 – 10 VCC = 0 V – 20 – 30 VCC = 5 V VCC = 5 V TA = 25°C 4 3.5 3 2.5 2 1.5 1 0.
PAGE 8
SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162D – JULY 1993 – REVISED SEPTEMBER 2003 TYPICAL CHARACTERISTICS PROPAGATION DELAY TIME, DIFFERENTIAL OUTPUT vs FREE-AIR TEMPERATURE DIFFERENTIAL OUTPUT VOLTAGE vs OUTPUT CURRENT 14 VCC = 5 V TA = 25°C 13 2.5 t pd(OD) – Propagation Delay Time, Differential Output – ns VOD – Differential Output Voltage – V 3 2 1.5 1 0.
PAGE 9
PACKAGE OPTION ADDENDUM www.ti.
PAGE 10
PACKAGE OPTION ADDENDUM www.ti.com 14-May-2013 Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.
PAGE 11
PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-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 SN65LBC174DWR SOIC DW 20 2000 330.0 24.4 10.8 13.3 2.7 12.0 24.0 Q1 SN75LBC174DWR SOIC DW 20 2000 330.0 24.4 10.8 13.3 2.7 12.0 24.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN65LBC174DWR SOIC DW 20 2000 367.0 367.0 45.0 SN75LBC174DWR SOIC DW 20 2000 367.0 367.0 45.
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