SN75179B DIFFERENTIAL DRIVER AND RECEIVER PAIR SLLS003E – OCTOBER 1985 – REVISED JUNE 1998 D D D D D D D D D D D OR P PACKAGE (TOP VIEW) Meets or Exceeds the Requirements of TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendation V.11 Bus Voltage Range . . . – 7 V to 12 V Positive- and Negative-Current Limiting Driver Output Capability . . . 60 mA Max Driver Thermal-Shutdown Protection Receiver Input Impedance . . . 12 kΩ Min Receiver Input Sensitivity . . . ± 200 mV Receiver Input Hysteresis . . . 50 mV Typ Operates From Single 5-V Supply Low Power Requirements VCC R D GND 1 8 2 7 3 6 4 5 A B Z Y description The SN75179B is a differential driver and receiver pair designed for balanced transmission-line applications and meets TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendation V.11. It is designed to improve the performance of full-duplex data communications over long bus lines. The SN75179B driver output provides limiting for both positive and negative currents. The receiver features high input impedance, input hysteresis for increased noise immunity, and input sensitivity of ± 200 mV over a common-mode input voltage range of – 7 V to 12 V. The driver provides thermal shutdown for protection from line fault conditions. Thermal shutdown is designed to occur at a junction temperature of approximately 150°C. The SN75179B is designed to drive current loads of up to 60 mA maximum. The SN75179B is characterized for operation from 0°C to 70°C. Function Tables DRIVER INPUT D OUTPUTS Y Z H H L L L H RECEIVER DIFFERENTIAL INPUTS A–B OUTPUT R VID ≥ 0.2 V – 0.2 V < VID < 0.2 V H VID ≤ – 0.2 V L Open ? ? H = high level, L = low level, ? = indeterminate 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. Copyright 1998, 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SN75179B DIFFERENTIAL DRIVER AND RECEIVER PAIR SLLS003E – OCTOBER 1985 – REVISED JUNE 1998 logic symbol† logic diagram (positive logic) 8 2 7 R 6 3 5 D 8 A B R 2 7 A B Z 6 Y D 3 5 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Z Y schematics of inputs and outputs EQUIVALENT OF DRIVER INPUT TYPICAL OF ALL DRIVER OUTPUTS VCC VCC Input Output GND Driver input: R(eq) = 3 kΩ NOM R(eq) = equivalent resistor EQUIVALENT OF EACH RECEIVER INPUT TYPICAL OF ALL RECEIVER OUTPUTS VCC VCC 85 Ω NOM 960 Ω NOM Input 16.8 kΩ NOM 2 960 Ω NOM Output POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN75179B DIFFERENTIAL DRIVER AND RECEIVER PAIR SLLS003E – OCTOBER 1985 – REVISED JUNE 1998 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Voltage range at any bus terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 10 V to 15 V Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 25 V Package thermal impedance, θJA (see Note 3): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197°C/W P package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C † 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. NOTES: 1. All voltage values, except differential input voltage, are with respect to network ground terminal. 2. Differential input voltage is measured at the noninverting input with respect to the corresponding inverting input. 3. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero. recommended operating conditions Supply voltage, VCC High-level input voltage, VIH Driver Low-level input voltage, VIL Driver MAX UNIT 5 5.25 V –7‡ Differential input voltage, VID Low level output current, Low-level current IOL NOM 2 Common-mode input voltage, VIC High level output current, High-level current IOH MIN 4.75 Driver Receiver Driver V 0.8 V 12 V ± 12 V – 60 mA – 400 µA 60 Receiver 8 mA Operating free-air temperature, TA 0 70 °C ‡ The algebraic convention, where the less positive (more negative) limit is designated minimum, is used in this data sheet for common-mode input voltage and threshold voltage. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN75179B DIFFERENTIAL DRIVER AND RECEIVER PAIR SLLS003E – OCTOBER 1985 – REVISED JUNE 1998 DRIVER SECTION electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS VIK Input clamp voltage II = - 18 mA VO VOD1 Output voltage IO = 0 Differential output voltage IO = 0 VOD2 g Differential output voltage VOD3 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§ IO IIH Output current IIL Low-level input current IOS MIN V 6 V 1.5 6 V See Figure 1 RL = 54 Ω, See Figure 1 1.5 V 2.5 1.5 VCC = 0, VI = 2.4 V High-level input current See Figure 1 VO = – 7 V to 12 V VI = 0.4 V VO = – 7 V Short circuit output current Short-circuit UNIT – 1.5 RL = 100 Ω, RL = 54 Ω or 100 Ω, MAX 0 1/2VOD1 or 2‡ See Note 4 TYP† 5 V 5 V ± 0.2 V 3 –1 V ± 0.2 V ± 100 µA 20 µA – 200 µA – 250 VO = VCC or 12 V No load 250 mA ICC Supply current (total package) 57 70 mA † All typical values are at VCC = 5 V and TA = 25°C. ‡ The minimum VOD2 with 100-Ω load is either 1/2 VOD2 or 2 V, whichever is greater. § ∆|VOD| and ∆|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input changes from a high level to a low level. NOTE 4: See TIA/EIA-485-A, Figure 3.5, Test Termination Measurement 2. switching characteristics, VCC = 5 V, TA = 25°C PARAMETER td(OD) tt(OD) TEST CONDITIONS Differential output delay time RL = 54 Ω Ω, Differential output transition time MIN TYP MAX 15 22 ns 20 30 ns See Figure 3 Symbol Equivalents DATA-SHEET PARAMETER TIA/EIA-422-B VO | VOD1 | Voa, Vob Vo Voa, Vob Vo | VOD2 | Vt (RL = 100 Ω) Vt (RL = 54 Ω) Vt (Test Termination Measurement 2) ∆ | VOD | | | Vt | – |Vt | | | | Vt | – |Vt | | VOC ∆ | VOC | | Vos | | Vos | | Vos – Vos | | Vos – Vos | IOS IO | Isa |, | Isb | | VOD3 | 4 TIA/EIA-485-A | Ixa |, | Ixb | POST OFFICE BOX 655303 Iia , Iib • DALLAS, TEXAS 75265 UNIT SN75179B DIFFERENTIAL DRIVER AND RECEIVER PAIR SLLS003E – OCTOBER 1985 – REVISED JUNE 1998 RECEIVER SECTION electrical characteristics over recommended ranges of common-mode input voltage, supply voltage, and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS VIT + VIT – Positive-going input threshold voltage Vhys VOH Hysteresis voltage (VIT + – VIT –) VOL Low-level output voltage Negative-going input threshold voltage High-level output voltage II Line input current ri Input resistance VO = 2.7 V, VO = 0.5 V, MIN IO = – 0.4 mA IO = 8 mA TYP† MAX 0.2 – 0.2‡ IOH = – 400 µA, IOL = 8 mA, Other input at 0 V V, See Figure 2 mV 2.7 V See Figure 2 0.45 VI = 12 V VI = – 7 V See Note 5 V V 50 VID = 200 mV, VID = – 200 mV, UNIT 1 – 0.8 12 V mA kΩ IOS Short-circuit output current – 15 – 85 mA ICC Supply current (total package) No load 57 70 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ The algebraic convention, where the less positive (more negative) limit is designated minimum, is used in this data sheet for common-mode input voltage and threshold voltage levels only. NOTE 5: Refer to TIA/EIA-422-B for exact conditions. switching characteristics, VCC = 5 V, TA = 25°C PARAMETER tPLH tPHL TEST CONDITIONS Propagation delay time, low- to high-level output VID = – 1.5 V to 1.5 V, CL = 15 pF, See Figure 4 Propagation delay time, high- to low-level output MIN TYP MAX 19 35 UNIT ns 30 40 ns PARAMETER MEASUREMENT INFORMATION RL 2 VOD2 RL 2 VOC Figure 1. Driver VDD and VOC VID VOL VOH + IOL – IOH Figure 2. Receiver VOH and VOL POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 SN75179B DIFFERENTIAL DRIVER AND RECEIVER PAIR SLLS003E – OCTOBER 1985 – REVISED JUNE 1998 PARAMETER MEASUREMENT INFORMATION (CONTINUED) 3V Input RL = 54 Ω Generator (see Note A) 50 Ω CL = 50 pF (see Note B) Output 1.5 V 1.5 V 0V td(OD) Output td(OD) 90% 10% 50% ≈ 2.5 V 50% ≈ – 2.5 V tt(OD) tt(OD) 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. Figure 3. Driver Test Circuit and Voltage Waveforms Input Generator (see Note A) 50 Ω 3V 1.5 V 1.5 V 0V Output 1.5 V CL = 50 pF (see Note B) tPLH tPHL VOH Output 1.3 V 1.3 V 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. Figure 4. Receiver Test Circuit and Voltage Waveforms 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN75179B DIFFERENTIAL DRIVER AND RECEIVER PAIR SLLS003E – OCTOBER 1985 – REVISED JUNE 1998 TYPICAL CHARACTERISTICS DRIVER DRIVER HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 5 VCC = 5 V TA = 25°C 4.5 VCC = 5 V TA = 25°C 4.5 VOL – Low-Level Output Voltage – V VOH – High-Level Output Voltage – V 5 4 3.5 3 2.5 2 1.5 1 4 3.5 3 2.5 2 1.5 1 0.5 0.5 0 0 0 – 20 – 40 – 60 – 80 – 100 0 – 120 IOH – High-Level Output Current – mA 80 100 20 40 60 IOL – Low-Level Output Current – mA Figure 5 Figure 6 DRIVER RECEIVER DIFFERENTIAL OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs DIFFERENTIAL INPUT VOLTAGE 4 5 VCC = 5 V TA = 25°C 3.5 4.5 VCC = 5 V IO = 0 TA = 25°C 4 3 VO – Output Voltage – V VOD – Differential Output Voltage – V 120 2.5 2 1.5 3.5 VIC = –12 V VIC = 0 VIT– VIT– VIC = 12 V 3 VIT– 2.5 2 VIT+ VIT+ VIT+ 1.5 1 1 0.5 0 0.5 0 10 20 30 40 50 60 70 80 IO – Output Current – mA 90 100 0 –125 –100 –75 – 50 – 25 0 25 50 75 100 125 VID – Differential Input Voltage – mV Figure 8 Figure 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 SN75179B DIFFERENTIAL DRIVER AND RECEIVER PAIR SLLS003E – OCTOBER 1985 – REVISED JUNE 1998 TYPICAL CHARACTERISTICS HIGH-LEVEL OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT 5 5 VID = 0.2 V TA = 25°C 4 3.5 3 VCC = 5.25 V 2.5 VCC = 5 V 2 1.5 1 VCC = 5 V VID = 0.2 V IOH = – 440 µA 4.5 VOH – High-Level Output Voltage – V VOH – High-Level Output Voltage – V 4.5 VCC = 4.75 V 4 3.5 3 2.5 2 1.5 1 0.5 0.5 0 0 0 0 – 5 – 10 – 15 – 20 – 25 – 30 – 35 – 40 – 45 – 50 IOH – High-Level Output Current – mA 70 20 30 40 50 60 TA – Free-Air Temperature – °C 10 Figure 9 RECEIVER RECEIVER LOW-LEVEL OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE 0.5 VCC = 5 V TA = 25°C VOL – Low-Level Output Voltage – V VOL– Low-Level Output Voltage - V 0.6 0.4 0.3 0.2 0.1 0 0 5 10 15 20 25 30 IOL – Low-Level Output Current – mA VCC = 5 V VID = – 0.2 V IOL = 8 mA 0.4 0.3 0.2 0.1 0 0 10 20 30 40 50 Figure 12 POST OFFICE BOX 655303 60 70 TA – Free-Air Temperature – °C Figure 11 8 90 Figure 10 LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 0.5 80 • DALLAS, TEXAS 75265 80 90 PACKAGE OPTION ADDENDUM www.ti.com 4-Jun-2007 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty SN75179BD ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN75179BDE4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN75179BDG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN75179BDR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN75179BDRE4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN75179BDRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN75179BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type SN75179BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type SN75179BPSR ACTIVE SO PS 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN75179BPSRE4 ACTIVE SO PS 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN75179BPSRG4 ACTIVE SO PS 8 2000 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. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 4-Jun-2007 to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 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 SN75179BDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 SN75179BPSR SO PS 8 2000 330.0 16.4 8.2 6.6 2.5 12.0 16.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN75179BDR SN75179BPSR SOIC D 8 2500 340.5 338.1 20.6 SO PS 8 2000 367.0 367.0 38.0 Pack Materials-Page 2 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 JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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