SN65HVD379 www.ti.com SLLS667A – FEBRUARY 2006 – REVISED MAY 2006 3.3 V FULL-DUPLEX RS-485/RS-422 DRIVERS AND BALANCED RECEIVERS FEATURES DESCRIPTION • • • • • • • The SN65HVD379 is a differential line driver and differential-input line receiver that operates with a 3.3-V power supply. Each driver and receiver has separate input and output pins for full-duplex bus communication designs. They are designed for balanced transmission lines and interoperation with ANSI TIA/EIA-485A, TIA/EIA-422-B, ITU-T v.11, and ISO 8482:1993 standard-compliant devices. • • • Designed for INTERBUS Applications Balanced Receiver Thresholds 1/2 Unit-Load (up to 64 nodes on the bus) Bus-Pin ESD Protection 15 kV HBM Bus-Fault Protection of –7V to 12V Thermal Shutdown Protection Power-Up/Down Glitch-free Bus Inputs and Outputs High Input Impedance with Low VCC Monotonic Outputs During Power Cycling 5V Tolerant Inputs APPLICATIONS • • • • • • • Digital Motor Control Utility Meters Chassis-to-Chassis Interconnections Electronic Security Stations Industrial, Process, and Building Automation Point-of-Sale (POS) Terminals and Networks DTE/DCE Interfaces These differential bus drivers and receivers are monolithic, integrated circuits designed for full-duplex bi-directional data communication on multipoint bus-transmission lines at signaling rates (1) up to 25 Mbps. The SN65HVD379 is fully enabled with no external enabling pins. The 1/2 unit load receiver has a higher receiver input resistance. This results in lower bus leakage currents over the common-mode voltage range, and reduces the total amount of current that an RS-485 driver is forced to source or sink when transmitting. The balanced differential receiver input threshold makes the SN65HVD379 more compatible with fieldbus requirements that define an external failsafe structure. (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). BALANCED RECEIVER INPUT THRESHOLDS SN65HVD379 D PACKAGE (TOP VIEW) VIT –(T Y P ) VIT+ (T Y P ) Recevier Output High VCC R D GND 8 2 7 3 6 4 5 A B Z Y 0.20 V 0.15 V 0.10 V 0.05 V 0V VID -0.05 V -0.10 V -0.15 V -0.20 V Receiver Output Low 1 R D 2 3 8 7 5 6 A B Y Z 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. 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 SN65HVD379 www.ti.com SLLS667A – FEBRUARY 2006 – REVISED MAY 2006 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. ORDERING INFORMATION SIGNALING RATE UNIT LOADS PART NUMBER (1) 25 Mbps 1/2 SN65HVD379 (1) SOIC MARKING These are The D package is available taped and reeled. Add an R suffix to the part number (ie. SN65HVD379DR). ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range unless otherwise noted (1) (2) UNIT VCC Supply voltage range –0.3 V to 6 V VA, VB, VY, VZ Voltage range at any bus terminal (A, B, Y, Z) –9 V to 14 V VTRANS Voltage input, transient pulse through 100 Ω. See Figure 8 (A, B, Y, Z) (3) –50 to 50 V VI Input voltage range (D, DE, RE) PCONT Continuous total power dissipation IO Output current (receiver output only, R) (1) (2) (3) (4) -0.5 V to 7 V Internally limited (4) 11 mA Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage values, except differential I/O bus voltages, are with respect to network ground terminal. This tests survivability only and the output state of the receiver is not specified. The Thermal shutdown protection circuit internally limits the continuous total power dissipation. Thermal shutdown typically occurs when the junction temperature reaches 165°C. RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range unless otherwise noted PARAMETER Supply voltage VI or VIC Voltage at any bus terminal (separately or common mode) 1/tUI Signaling rate RL Differential load resistance VIH High-level input voltage D VIL Low-level input voltage D VID Differential input voltage IOH High-level output current IOL Low-level output current TA Ambient still-air temperature (1) 2 MIN VCC NOM 3.6 –7 (1) 12 SN65HVD379 25 54 Driver MAX 3.0 2 VCC 0 0.8 –12 12 60 Receiver 8 –40 85 The algebraic convention, in which the least positive (most negative) limit is designated as minimum is used in this data sheet. Submit Documentation Feedback Mbps V mA –8 Driver V Ω 60 –60 Receiver UNIT mA °C SN65HVD379 www.ti.com SLLS667A – FEBRUARY 2006 – REVISED MAY 2006 ELECTROSTATIC DISCHARGE PROTECTION PARAMETER TEST CONDITIONS MIN TYP (1) Human body model Bus terminals and GND Human body model (2) All pins ±4 Charged-device-model (3) All pins ±1 (1) (2) (3) MAX UNIT ±16 kV All typical values at 25°C with 3.3-V supply. Tested in accordance with JEDEC Standard 22, Test Method A114-A. Tested in accordance with JEDEC Standard 22, Test Method C101. DRIVER ELECTRICAL CHARACTERISTICS over recommended operating conditions unless otherwise noted PARAMETER VI(K) TEST CONDITIONS Input clamp voltage II = –18 mA IO = 0 2.0 RL = 54 Ω, See Figure 1 (2)(RS-485) 1.5 2.0 RL = 100 Ω, See Figure 1 (RS-422) 2.0 2.3 Vtest = –7 V to 12 V, See Figure 2 1.5 Steady-state differential output voltage ∆|VOD(SS)| Change in magnitude of steady-state differential output voltage between states RL = 54 Ω, See Figure 1 and Figure 2 VOD(RING) Differential Output Voltage overshoot and undershoot RL = 54 Ω, CL = 50 pF, See Figure 5 (Figure 3 for definitions) VOC(PP) Peak-to-peak common-mode output voltage VOC(SS) Steady-state common-mode output voltage ∆VOC(SS) Change in steady-state common-mode output voltage High-impedance state output current IZ(S) or IY(S) Short Circuit output Current II Input current C(OD) (1) (2) (3) MAX VCC –0.2 0.2 0.5 See Figure 3 VCC = 0 V, VZ or VY = –7 V, Other input at 0 V VZ or VY = –7 V VZ or VY = 12 V Other input at 0 V VI = 0 or VI = 2.0 1.6 2.3 –0.05 0.05 90 µA –10 –250 250 –250 250 0 100 VOD = 0.4 sin (4E6πt) + 0.5 V, VCC at 0 V Differential output capacitance V 10% (3) VCC = 0 V, VZ or VY = 12 V, Other input at 0 V D UNIT –1.5 |VOD(SS)| IZ(Z) or IY(Z) MIN TYP (1) 16 mA µA pF All typical values are at 25°C and with a 3.3-V supply. VCC is 3.3 Vdc ± 5% 10% of the peak-to-peak Differential Output voltage swing, per TIA/EIA-485. DRIVER SWITCHING CHARACTERISTICS over recommended operating conditions unless otherwise noted PARAMETER TEST CONDITIONS tPLH Propagation delay time, low-to-high-level output tPHL Propagation delay time, high-to-low-level output tr Differential output signal rise time tf Differential output signal fall time tsk(p) tsk(pp) (1) (2) RL = 54 Ω, CL = 50 pF, See Figure 5 Pulse skew (|tPHL– tPLH|) (2) Part-to-part skew MIN TYP (1) MAX 4 10 18 ns 2.5 5 12 ns UNIT 0.6 ns 1 ns All typical values are at 25°C and with a 3.3-V supply. tsk(pp) is the magnitude of the difference in propagation delay times between any specified terminals of two devices when both devices operate with the same supply voltages, at the same temperature, and have identical packages and test circuits. Submit Documentation Feedback 3 SN65HVD379 www.ti.com SLLS667A – FEBRUARY 2006 – REVISED MAY 2006 RECEIVER ELECTRICAL CHARACTERISTICS over recommended operating conditions unless otherwise noted PARAMETER TEST CONDITIONS VIT+ Positive-going differential input threshold voltage IO = –8 mA VIT– Negative-going differential input threshold voltage IO = 8 mA Vhys Hysteresis voltage (VIT+– VIT–) VO Output voltage MIN MAX UNIT 0.2 V –0.2 50 VID = 200 mV, IO = –8 mA, See Figure 7 mV 2.4 VID = –200 mV, IO = 8 mA, See Figure 7 0.20 0.35 VA or VB = 12 V, VCC = 0 V 0.24 0.40 Bus input current CID Differential input capacitance VID = 0.4 sin (4E6πt) + 0.5 V, DE at 0 V ICC Supply current D at 0 V or VCC and No Load VA or VB = -7 V Other input at 0 V VA or VB = -7 V, VCC = 0 V V 0.4 VA or VB = 12 V IA or IB (1) TYP (1) –0.35 –0.18 –0.25 –0.13 mA 15 pF 2.1 mA TYP (1) MAX UNIT 26 45 All typical values are at 25°C and with a 3.3-V supply. RECEIVER SWITCHING CHARACTERISTICS over recommended operating conditions unless otherwise noted PARAMETER TEST CONDITIONS MIN tPLH Propagation delay time, low-to-high-level output tPHL Propagation delay time, high-to-low-level output tsk(p) Pulse skew (|tPHL - tPLH|) tsk(pp) Part-to-part skew (2) tr Output signal rise time 5 tf Output signal fall time 6 (1) (2) VID = –1.5 V to 1.5 V, CL = 15 pF, See Figure 7 ns 7 5 All typical values are at 25°C and with a 3.3-V supply tsk(pp) is the magnitude of the difference in propagation delay times between any specified terminals of two devices when both devices operate with the same supply voltages, at the same temperature, and have identical packages and test circuits. DEVICE POWER DISSIPATION – PD PARAMETER PD TEST CONDITIONS Device power dissipation MIN RL = 60 , CL = 50 pF, Input to D a 50% duty cycle square wave at indicated signaling rate TA = 85°C TYP MAX UNIT 197 mW FUNCTION TABLES DRIVER INPUT 4 RECEIVER OUTPUTS DIFFERENTIAL INPUTS OUTPUTS D Y Z VID = VA–VB R H H L VID≤– 0.2 V L L L H –0.2 V < VID < 0.2 V ? Open L H 0.2 V ≤ VID H Submit Documentation Feedback SN65HVD379 www.ti.com SLLS667A – FEBRUARY 2006 – REVISED MAY 2006 PARAMETER MEASUREMENT INFORMATION 375 Ω ±1% II Y IY VOD 0 or 3 V Z RL Y D VOD 0 or 3 V IZ 60 Ω ±1% + _ −7 V < V(test) < 12 V Z VI VZ VY 375 Ω ±1% Figure 1. Driver VOD Test Circuit and Voltage and Current Definitions Figure 2. Driver VOD With Common-Mode Loading Test Circuit VOD(SS) VOD(RING) 0 V Differential VOD(RING) -VOD(SS) Figure 3. VOD(RING) Waveform and Definitions VOD(RING) is measured at four points on the output waveform, corresponding to overshoot and undershoot from theVOD(H) and VOD(L) steady state values. 27 Ω ± 1% Input D Y Y VY Z VZ VOC(PP) Z 27 Ω ± 1% CL = 50 pF ±20% VOC ∆VOC(SS) VOC CL Includes Fixture and Instrumentation Capacitance Input: PRR = 500 kHz, 50% Duty Cycle,t r <6ns, t f <6ns, ZO = 50 Ω Figure 4. Test Circuit and Definitions for the Driver Common-Mode Output Voltage Submit Documentation Feedback 5 SN65HVD379 www.ti.com SLLS667A – FEBRUARY 2006 – REVISED MAY 2006 PARAMETER MEASUREMENT INFORMATION (continued) Y W » W Z » W Figure 5. Driver Switching Test Circuit and Voltage Waveforms IA A IO R VA VID VIC VA + VB 2 VB B VO IB Figure 6. Receiver Voltage and Current Definitions A R Input Generator VI 50 Ω 1.5 V B 3V VO 1.5 V VI 0V CL = 15 pF ±20% CL Includes Fixture and Instrumentation Capacitance 1.5 V t PLH VO Generator: PRR = 500 kHz, 50% Duty Cycle, t r <6 ns, t f <6 ns, Zo = 50 Ω t PHL VOH 90% 90% 1.5 V 10% tr 1.5 V 10% V OL tf Figure 7. Receiver Switching Test Circuit and Voltage Waveforms A Y D R Z 100 W ±1% + - Pulse Generator 15 ms duration 1% Duty Cycle tr, tf £ 100 ns 100 W ±1% B + - Figure 8. Test Circuit, Transient Over Voltage Test 6 Submit Documentation Feedback SN65HVD379 www.ti.com SLLS667A – FEBRUARY 2006 – REVISED MAY 2006 EQUIVALENT INPUT AND OUTPUT SCHEMATIC DIAGRAMS D Input R Output VCC Input VCC 470 W 5W Output 9V 9V 125 kW A Input B Input VCC VCC R1 22 V R1 22 V R3 R3 Input Input 22 V R2 22 V R2 Y and Z Outputs VCC 16 V Output 16 V SN65HVD379 R1/R2 R3 9 kΩ 45 kΩ Submit Documentation Feedback 7 SN65HVD379 www.ti.com SLLS667A – FEBRUARY 2006 – REVISED MAY 2006 TYPICAL CHARACTERISTICS RMS Supply Current vs Signaling Rate Bus Input Current vs Input Voltage 55 250 TA =25°C RL = 54 W RE = VCC CL = 50 pF DE = VCC 50 150 II - Bus Input Current - uA ICC - RMS Supply Current - mA TA = 25°C RE = 0 V DE = 0 V 200 45 VCC = 3.3 V 40 35 100 50 VCC = 3.3 V 0 -50 -100 -150 -200 30 0 5 10 15 20 25 -7 -4 Signaling Rate - Mbps 5 8 Figure 9. Figure 10. Driver Low-Level Output Current vs Low-Level Output Voltage Driver High-Level Output Current vs High-Level Output Voltage 11 14 3 3.5 0.01 VCC = 3.3 V DE = VCC D=0V 0.12 VCC = 3.3 V DE = VCC D=0V -0.01 0.1 IOH - High-level Output Current - A IOL - Low-level Output Current - A 2 VI - Bus Input Voltage - V 0.14 0.08 0.06 0.04 0.02 0 -0.02 -0.03 -0.05 -0.07 -0.09 -0.11 -0.13 0 0.5 1 1.5 2 2.5 3 3.5 0 VOL - Low-Level Output Voltage - V Figure 11. 8 -1 0.5 1 1.5 2 Figure 12. Submit Documentation Feedback 2.5 VOH - High-Level Output Voltage - V SN65HVD379 www.ti.com SLLS667A – FEBRUARY 2006 – REVISED MAY 2006 TYPICAL CHARACTERISTICS (continued) Driver Differential Output Voltage vs Free-Air Temperature Driver Output Current vs Supply Voltage 2.2 40 TA = 25°C RL = 54 W D = VCC DE = VCC 35 IO - Driver Output Current - mA VOD - Driver Differential Voltage - V VCC = 3.3 V DE = VCC D = VCC 2.1 2.0 1.9 30 25 20 15 10 5 0 1.8 -40 -15 10 35 60 85 0 0.5 1 1.5 2 2.5 TA - Free Air Temperature - °C VCC Supply Voltage - V Figure 13. Figure 14. Submit Documentation Feedback 3 3.5 9 PACKAGE OPTION ADDENDUM www.ti.com 18-Jul-2006 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty SN65HVD379D ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65HVD379DG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65HVD379DR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN65HVD379DRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. 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. 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. 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 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. 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Addendum-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN65HVD379DR Package Package Pins Type Drawing SOIC D 8 SPQ Reel Reel Diameter Width (mm) W1 (mm) 2500 330.0 12.4 Pack Materials-Page 1 A0 (mm) B0 (mm) K0 (mm) P1 (mm) 6.4 5.2 2.1 8.0 W Pin1 (mm) Quadrant 12.0 Q1 PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN65HVD379DR SOIC D 8 2500 346.0 346.0 29.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. 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