SN75ALS181 www.ti.com SLLS152C - DECEMBER 1992 - REVISED MAY 2010 DIFFERENTIAL DRIVER AND RECEIVER PAIR Check for Samples: SN75ALS181 FEATURES 1 * * * * * * * * * * Meets TIA/EIA-422-B, TIA/EIA-485-A, and CCITT Recommendations V.11 and X.27 Low Supply-Current Requirements... 30 mA Max Driver Output Capacity...60 mA Thermal Shutdown Protection Driver Common-Mode Output Voltage Range of -7 V to 12 V Receiver Input Impedance...12 k Min Receiver Input Sensitivity...200 mV Receiver Input Hysteresis...60 mV Typ Receiver Common-Mode Input Voltage Range of 12 V Operates From Single 5-V Supply * Glitch-Free Power-Up and Power-Down Protection N OR NS PACKAGE (TOP VIEW) N.C. - No internal connection DESCRIPTION The SN75ALS181 is a differential driver and receiver pair designed for bidirectional data communication on multipoint bus transmission lines. The design provides for balanced transmission lines and meets TIA/EIA-422-B and TIA/EIA-485-A, and CCITT recommendations V.10, V.11, X.26, and X.27. The SN75ALS181 combines a 3-state differential line driver and a differential-input line receiver that operate from a single 5-V power supply. The driver and receiver have active-high and active-low enables, respectively, that can be connected together externally to function as a direction control. The driver differential outputs and the receiver differential inputs are connected to separate pins for greater flexibility and are designed to offer minimum loading to the bus when the driver is disabled or VCC = 0. These ports feature wide positive and negative common-mode voltage changes, making the device suitable for party-line applications. ORDERING INFORMATION PACKAGE (1) TA 0C to 70C (1) (2) (2) ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP - N Tape and reel SN75ALS181N SN75ALS181N SOP - NS Tape and reel SN75ALS181NSR 75ALS181 Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. 1 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 (c) 1992-2010, Texas Instruments Incorporated SN75ALS181 SLLS152C - DECEMBER 1992 - REVISED MAY 2010 www.ti.com FUNCTION TABLES Each Driver INPUTS D ENABLE DE H H L X OUTPUTS Y Z H L H L H L Z Z Each Receiver (1) DIFFERENTIAL A-B ENABLE RE OUTPUT R VID 0.2 V L H -0.2 V < VID < 0.2 V L ? VID -0.2 V L L X H Z (1) H = high level, L = low level, ? = indeterminate, X = irrelevant, Z = high impedance (off) LOGIC DIAGRAM (POSITIVE LOGIC) 2 Submit Documentation Feedback Copyright (c) 1992-2010, Texas Instruments Incorporated Product Folder Link(s): SN75ALS181 SN75ALS181 www.ti.com SLLS152C - DECEMBER 1992 - REVISED MAY 2010 SCHEMATICS OF INPUTS SCHEMATICS OF OUTPUTS Submit Documentation Feedback Copyright (c) 1992-2010, Texas Instruments Incorporated Product Folder Link(s): SN75ALS181 3 SN75ALS181 SLLS152C - DECEMBER 1992 - REVISED MAY 2010 www.ti.com ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) MIN VCC Input voltage range D, DE, and RE inputs Output voltage range Driver Input voltage range Receiver Receiver differential input voltage range (3) qJA MAX Supply voltage range (2) Package thermal impedance (4) (5) V 7 V -9 14 V -14 14 V -14 14 V N package 80 NS package 76 Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds Tstg (1) (2) (3) (4) (5) Storage temperature range UNIT 7 -65 C/W 260 C 150 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. All voltage values, except differential input voltage, are with respect to network ground terminal. Differential input voltage is measured at the noninverting terminal with respect to the inverting terminal. Maximum power dissipation is a function of TJ(max), qJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) - TA)/qJA. Operating at the absolute maximum TJ of 150C can affect reliability. The package thermal impedance is calculated in accordance with JESD 51-7. RECOMMENDED OPERATING CONDITIONS VCC Supply voltage VOC Common-mode output voltage (1) (1) Driver NOM MAX UNIT 5 5.25 V -7 12 V -12 12 V VIC Common-mode input voltage VIH High-level input voltage D, DE, and RE VIL Low-level input voltage D, DE, and RE 0.8 VID Differential input voltage 12 V Driver -60 mA -400 A IOH High-level output current IOL Low-level output current TA Operating free-air temperature (1) 4 Receiver MIN 4.75 2 Receiver V Driver 60 Receiver 8 0 70 V mA C The algebraic convention, where the less positive (more negative) limit is designated as minimum, is used in this table for common-mode output voltage level only. Submit Documentation Feedback Copyright (c) 1992-2010, Texas Instruments Incorporated Product Folder Link(s): SN75ALS181 SN75ALS181 www.ti.com SLLS152C - DECEMBER 1992 - REVISED MAY 2010 Driver Section ELECTRICAL CHARACTERISTICS over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) MAX UNIT VIK Input clamp voltage II = -18 mA -1.5 V VO Output voltage IO = 0 0 6 V |VOD1| Differential output voltage IO = 0 1.5 6 V |VOD2| VCC = 5 V , RL = 100 Differential output voltage 1/2 VOD1 See Figure 1 RL = 54 |VOD3| Differential output voltage Vtest = -7 V to 12 V, See Figure 2 |VOD| Change in magnitude of differential output voltage RL = 54 or 100 , See Figure 1 VOC Common mode output voltage RL = 54 or 100 , See Figure 1 |VOC| Change in magnitude of common-mode output voltage (2) RL = 54 or 100 , See Figure 1 IOZ High-impedance-state output current VO = -7 V to 12 V (3) IIH High-level input current IIL Low-level input current IOS Short circuit output current 2 1.5 V 2.3 1.5 (1) (2) (3) Supply current (total package) 5 V 0.5 V 3 -1 V 0.2 A 100 A VIH = 2.4 V 20 A VIL = 0.4 V -100 A VO = -7 V -250 VO = VCC 250 VO = 12 V 250 VO = 0 V ICC 5 mA -150 No load Outputs enabled 21 30 Outputs disabled 14 21 mA All typical values are at VCC = 5 V and TA = 25C. |VOD| and |VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low level. This applies for both power on and power off. Refer to TIA/EIA-485-A for exact conditions SWITCHING CHARACTERISTICS over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) 9 13 20 ns 1 8 ns MAX UNIT tdD Differential output delay time, tdDH or tdDL RL = 54 , CL = 50 pF, See Figure 3 tsk(p) Pulse skew (|tdDH - tdDL|) RL = 54 , CL = 50 pF, See Figure 3 tt Differential output transition time RL = 54 , CL = 50 pF, See Figure 3 10 16 ns tPZH Output enable time to high level RL = 110 , See Figure 4 36 53 ns tPZL Output enable time to low level RL = 110 , See Figure 5 39 56 ns tPHZ Output disable time from high level RL = 110 , See Figure 4 20 31 ns tPLZ Output disable time from low level RL = 110 , See Figure 5 9 20 ns (1) 3 All typical values are at VCC = 5 V and TA = 25C. Submit Documentation Feedback Copyright (c) 1992-2010, Texas Instruments Incorporated Product Folder Link(s): SN75ALS181 5 SN75ALS181 SLLS152C - DECEMBER 1992 - REVISED MAY 2010 www.ti.com Receiver Section ELECTRICAL CHARACTERISTICS over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS VT+ Positive-going threshold voltage, differential input VO = 2.7 V, IO = -0.4 mA VT- Negative-going threshold voltage, differential input VO = 0.5 V, IO = 8 mA Vhys Input hysteresis (VT+ - VT-) VIK Input clamp voltage, RE II = -18 mA VOH High-level output voltage VID = 200 mV, IOH = -400 mA, See Figure 6 VOL Low-level output voltage VID = 200 mV, IOL = 8 mA, IOZ High-impedance-state output current VO = 0.4 V to 2.4 V II Line input current Other input at 0 V (2), IIH High-level input current, RE VIH = 2.7 V IIL Low-level input current, RE VIL = -7 V RI Input resistance IOS Short circuit output current ICC (1) (2) Supply current (total package) TYP (1) MIN MAX UNIT 0.2 -0.2 V 60 mV -1.5 VID = 200 mV, V 2.7 V See Figure 6 0.45 V 20 A VI = 12 V 1 VI = -7 V -0.8 VO = 0 V mA 20 A -100 A 12 No load V k -15 -85 Outputs enabled 21 30 Outputs disabled 14 21 mA mA All typical values are at VCC = 5 V and TA = 25C. This applies for both power on and power off. Refer to TIA/EIA-485-A for exact conditions SWITCHING CHARACTERISTICS over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) MAX UNIT tPHL Differential output delay time, tdDH or tdDL VID = -1.5 V to 1.5 V 10 16 25 ns tPLH Propagation delay time, low- to high-level output VID = -1.5 V to 1.5 V 10 16 25 ns tsk(p) Pulse skew (|tdDH - tdDL|) VID = -1.5 V to 1.5 V 1 8 ns tPZH Output enable time to high level 7 15 ns tPZL Output enable time to low level 9 19 ns tPHZ Output disable time from high level 18 27 ns tPLZ Output disable time from low level 10 15 ns (1) 6 All typical values are at VCC = 5 V and TA = 25C. Submit Documentation Feedback Copyright (c) 1992-2010, Texas Instruments Incorporated Product Folder Link(s): SN75ALS181 SN75ALS181 www.ti.com SLLS152C - DECEMBER 1992 - REVISED MAY 2010 PARAMETER MEASUREMENT INFORMATION Figure 1. Driver Test Circuit, VOD and VOC Figure 2. Driver Circuit, VOD3 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 B. CL includes probe and jig capacitance. Figure 3. Driver Differential-Output Delay and Transition Times C. 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 D. CL includes probe and jig capacitance. Figure 4. Driver Enable and Disable Times E. 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 F. CL includes probe and jig capacitance. Submit Documentation Feedback Copyright (c) 1992-2010, Texas Instruments Incorporated Product Folder Link(s): SN75ALS181 7 SN75ALS181 SLLS152C - DECEMBER 1992 - REVISED MAY 2010 www.ti.com PARAMETER MEASUREMENT INFORMATION (continued) Figure 5. Driver Enable and Disable Times Figure 6. Receiver, VOH and VOL G. 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 H. CL includes probe and jig capacitance. Figure 7. Receiver Propagation-Delay Times 8 I. 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 J. CL includes probe and jig capacitance. Submit Documentation Feedback Copyright (c) 1992-2010, Texas Instruments Incorporated Product Folder Link(s): SN75ALS181 SN75ALS181 www.ti.com SLLS152C - DECEMBER 1992 - REVISED MAY 2010 PARAMETER MEASUREMENT INFORMATION (continued) Figure 8. Receiver Output Enable and Disable Times Submit Documentation Feedback Copyright (c) 1992-2010, Texas Instruments Incorporated Product Folder Link(s): SN75ALS181 9 PACKAGE OPTION ADDENDUM www.ti.com 7-May-2010 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty SN75ALS181N ACTIVE PDIP N 14 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type SN75ALS181NE4 ACTIVE PDIP N 14 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type SN75ALS181NSLE OBSOLETE SO NS 14 TBD Call TI SN75ALS181NSR ACTIVE SO NS 14 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN75ALS181NSRG4 ACTIVE SO NS 14 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Lead/Ball Finish MSL Peak Temp (3) Call TI (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 to Customer on an annual basis. Addendum-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN75ALS181NSR Package Package Pins Type Drawing SO NS 14 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 16.4 Pack Materials-Page 1 8.2 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 10.5 2.5 12.0 16.0 Q1 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) SN75ALS181NSR SO NS 14 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 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. All semiconductor products (also referred to herein as "components") are sold subject to TI's terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI's terms and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily performed. TI assumes no liability for applications assistance or the design of Buyers' products. Buyers are responsible for their products and applications using TI components. To minimize the risks associated with Buyers' products and applications, Buyers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI regarding third-party products or services does not constitute a license to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use of any TI components in safety-critical applications. In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI's goal is to help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and requirements. Nonetheless, such components are subject to these terms. No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties have executed a special agreement specifically governing such use. Only those TI components which TI has specifically designated as military grade or "enhanced plastic" are designed and intended for use in military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI has specifically designated certain components which meet ISO/TS16949 requirements, mainly for automotive use. Components which have not been so designated are neither designed nor intended for automotive use; and TI will not be responsible for any failure of such components to meet such requirements. Products Applications Audio www.ti.com/audio Automotive and Transportation www.ti.com/automotive Amplifiers amplifier.ti.com Communications and Telecom www.ti.com/communications Data Converters dataconverter.ti.com Computers and Peripherals www.ti.com/computers DLP(R) Products www.dlp.com Consumer Electronics www.ti.com/consumer-apps DSP dsp.ti.com Energy and Lighting www.ti.com/energy Clocks and Timers www.ti.com/clocks Industrial www.ti.com/industrial Interface interface.ti.com Medical www.ti.com/medical Logic logic.ti.com Security www.ti.com/security Power Mgmt power.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defense Microcontrollers microcontroller.ti.com Video and Imaging www.ti.com/video RFID www.ti-rfid.com OMAP Mobile Processors www.ti.com/omap TI E2E Community e2e.ti.com Wireless Connectivity www.ti.com/wirelessconnectivity Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright (c) 2012, Texas Instruments Incorporated