TRS208 5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH – 15-kV ESD PROTECTION www.ti.com SLLS810–JULY2007 FEATURES • ESDProtectionforRS-232I/OPins DB, DW, OR NT PACKAGE – – 15-kVHuman-BodyModel(HBM) (TOPVIEW) • MeetsorExceedstheRequirementsof DOUT2 1 24 DOUT3 TIA/EIA-232-FandITUv.28Standards DOUT1 2 23 RIN3 • Operatesat5-VV Supply CC RIN2 3 22 ROUT3 • FourDriversandFourReceivers ROUT2 4 21 DIN4 • Operatesupto120kbit/s DIN1 5 20 DOUT4 • ExternalCapacitors...4· 0.1μF ROUT1 6 19 DIN3 • Latch-UpPerformanceExceeds100mAPer RIN1 7 18 DIN2 GND 8 17 ROUT4 JESD78,ClassII VCC 9 16 RIN4 APPLICATIONS C1+ 10 15 V- • Battery-PoweredSystems V+ 11 14 C2- C1- 12 13 C2+ • PDAs • Notebooks • Laptops • PalmtopPCs • Hand-HeldEquipment DESCRIPTION/ORDERING INFORMATION The TRS208 device consists of four line drivers, four line receivers, and a dual charge-pump circuit with – 15-kV HBM ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 5-V supply. The devices operate at data signaling rates up to 120 kbit/s and a maximum of 30-V/μs driver output slewrate. ORDERINGINFORMATION T PACKAGE(1)(2) ORDERABLEPARTNUMBER TOP-SIDEMARKING A PDIP–NT Tubeof15 TRS208CNT PREVIEW Tubeof25 TRS208CDW SOIC–DW TRS208C 0(cid:176) Cto70(cid:176) C Reelof2000 TRS208CDWR Tubeof60 TRS208CDB SSOP–DB RU08C Reelof2000 TRS208CDBR PDIP–NT Tubeof15 TRS208INT PREVIEW Tubeof25 TRS208IDW SOIC–DW TRS208I –40(cid:176) Cto85(cid:176) C Reelof2000 TRS208IDWR Tubeof60 TRS208IDB SSOP–DB RU08I Reelof2000 TRS208IDBR (1) Packagedrawings,standardpackingquantities,thermaldata,symbolization,andPCBdesignguidelinesareavailableat www.ti.com/sc/package. (2) Forthemostcurrentpackageandorderinginformation,seethePackageOptionAddendumattheendofthisdocument,orseetheTI websiteatwww.ti.com. Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet. UNLESS OTHERWISE NOTED this document contains Copyright©2007,TexasInstrumentsIncorporated PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarilyincludetestingofallparameters.

TRS208 5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH – 15-kV ESD PROTECTION www.ti.com SLLS810–JULY2007 FUNCTIONTABLES XXX EachDriver(1) INPUT OUTPUT DIN DOUT L H H L (1) H=highlevel,L=lowlevel EachReceiver(1) INPUT OUTPUT RIN ROUT L H H L Open H (1) H=highlevel,L=lowlevel, Open=inputdisconnectedor connecteddriveroff LOGICDIAGRAM(POSITIVELOGIC) 5 2 DIN1 DOUT1 18 1 DIN2 DOUT2 TTL/CMOS RS-232 Inputs Outputs 19 24 DIN3 DOUT3 21 20 DIN4 DOUT4 6 7 ROUT1 RIN1 4 3 ROUT2 RIN2 TTL/CMOS RS-232 Outputs 22 23 Inputs ROUT3 RIN3 17 16 ROUT4 RIN4 2 SubmitDocumentationFeedback

TRS208 5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH – 15-kV ESD PROTECTION www.ti.com SLLS810–JULY2007 Absolute Maximum Ratings(1) overoperatingfree-airtemperaturerange(unlessotherwisenoted) MIN MAX UNIT V Supplyvoltagerange(2) –0.3 6 V CC V+ Positivechargepumpvoltagerange(2) V –0.3 14 V CC V– Negativechargepumpvoltagerange(2) –14 0.3 V V+–V– Supplyvoltagedifference(2) 13 V Drivers –0.3 V++0.3 V Inputvoltagerange V I Receivers – 30 Drivers V––0.3 V++0.3 V Outputvoltagerange V O Receivers –0.3 V +0.3 CC Short-circuitduration DOUT Continuous DBpackage(3)(4) 63 θ Packagethermalimpedance DWpackage(3)(4) 46 (cid:176) C/W JA NTpackage(3)(5) 67 T Operatingvirtualjunctiontemperature 150 (cid:176) C J T Storagetemperaturerange –65 150 (cid:176) C stg (1) Stressesbeyondthoselistedunder"absolutemaximumratings"maycausepermanentdamagetothedevice.Thesearestressratings only,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder"recommendedoperating conditions"isnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability. (2) AllvoltagesarewithrespecttonetworkGND. (3) MaximumpowerdissipationisafunctionofT(max),θ ,andT .Themaximumallowablepowerdissipationatanyallowableambient J JA A temperatureisP =(T(max)–T )/θ .OperatingattheabsolutemaximumT of150(cid:176) Ccanaffectreliability. D J A JA J (4) ThepackagethermalimpedanceiscalculatedinaccordancewithJESD51-7. (5) ThepackagethermalimpedanceiscalculatedinaccordancewithJESD51-3. Recommended Operating Conditions(1) SeeFigure4 MIN NOM MAX UNIT Supplyvoltage 4.5 5 5.5 V V Driverhigh-levelinputvoltage DIN 2 V IH V Driverlow-levelinputvoltage DIN 0.8 V IL Driverinputvoltage DIN 0 5.5 V V I Receiverinputvoltage –30 30 TRS208C 0 70 T Operatingfree-airtemperature (cid:176) C A TRS208I –40 85 (1) TestconditionsareC1–C4=0.1μFatV =5V– 0.5V. CC Electrical Characteristics(1) overrecommendedrangesofsupplyvoltageandoperatingfree-airtemperature(unlessotherwisenoted)(seeFigure4) PARAMETER TESTCONDITIONS MIN TYP MAX UNIT I Supplycurrent Noload, V =5V, T =25(cid:176) C 11 20 mA CC CC A (1) TestconditionsareC1–C4=0.1μFatV =5V– 0.5V. CC SubmitDocumentationFeedback 3

TRS208 5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH – 15-kV ESD PROTECTION www.ti.com SLLS810–JULY2007 DRIVER SECTION Electrical Characteristics(1) overrecommendedrangesofsupplyvoltageandoperatingfree-airtemperature(unlessotherwisenoted)(seeFigure4) PARAMETER TESTCONDITIONS MIN TYP(2) MAX UNIT V High-leveloutputvoltage DOUTatR =3kW toGND, DIN=GND 5 9 V OH L V Low-leveloutputvoltage DOUTatR =3kW toGND, DIN=V –5 –9 V OL L CC I High-levelinputcurrent V =V 15 200 μA IH I CC I Low-levelinputcurrent V at0V –15 –200 μA IL I I (3) Short-circuitoutputcurrent V =5.5V, V =0V – 10 – 60 mA OS CC O r Outputresistance V ,V+,andV–=0V, V =– 2V 300 W o CC O (1) TestconditionsareC1–C4=0.1μFatV =5V– 0.5V. CC (2) AlltypicalvaluesareatV =5V,andT =25(cid:176) C CC A (3) Short-circuitdurationsshouldbecontrolledtopreventexceedingthedeviceabsolutepowerdissipationratings,andnotmorethanone outputshouldbeshortedatatime. Switching Characteristics(1) overrecommendedrangesofsupplyvoltageandoperatingfree-airtemperature(unlessotherwisenoted)(seeFigure4) PARAMETER TESTCONDITIONS MIN TYP(2) MAX UNIT C =50pFto1000pF, R =3kW to7kW , Maximumdatarate L L 120 kbit/s OneDOUTswitching, SeeFigure1 Propagationdelaytime, C =2500pF, R =3kW , t L L 2 μs PLH(D) low-tohigh-leveloutput Alldriversloaded, SeeFigure1 Propagationdelaytime, C =2500pF, R =3kW , t L L 2 μs PHL(D) high-tolow-leveloutput Alldriversloaded, SeeFigure1 t Pulseskew(3) CL=150pFto2500pF, RL=3kW to7kW , 300 ns sk(p) SeeFigure2 Slewrate,transitionregion C =50pFto1000pF, R =3kW to7kW , SR(tr) L L 3 6 30 V/μs (seeFigure1) V =5V CC (1) TestconditionsareC1–C4=0.1μFatV =5V– 0.5V. CC (2) AlltypicalvaluesareatV =5V,andT =25(cid:176) C. CC A (3) Pulseskewisdefinedas|t –t |ofeachchannelofthesamedevice. PLH PHL ESD Protection PIN TESTCONDITIONS TYP UNIT DOUT,RIN Human-BodyModel(HBM) – 15 kV 4 SubmitDocumentationFeedback

TRS208 5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH – 15-kV ESD PROTECTION www.ti.com SLLS810–JULY2007 RECEIVER SECTION Electrical Characteristics(1) overrecommendedrangesofsupplyvoltageandoperatingfree-airtemperature(unlessotherwisenoted)(seeFigure4) PARAMETER TESTCONDITIONS MIN TYP MAX UNIT V High-leveloutputvoltage I =–1mA 3.5 V OH OH V Low-leveloutputvoltage I =1.6mA 0.4 V OL OL V Positive-goinginputthresholdvoltage V =5V, T =25(cid:176) C 1.7 2.4 V IT+ CC A V Negative-goinginputthresholdvoltage V =5V, T =25(cid:176) C 0.8 1.2 V IT– CC A V Inputhysteresis(V –V ) V =5V 0.2 0.5 1 V hys IT+ IT– CC r Inputresistance V =– 3Vto– 25V, V =5V, T =25(cid:176) C 3 5 7 kW i I CC A (1) TestconditionsareC1–C4=0.1μFatV =5V– 0.5V. CC Switching Characteristics(1) overrecommendedrangesofsupplyvoltageandoperatingfree-airtemperature(unlessotherwisenoted)(seeFigure3) PARAMETER TESTCONDITIONS MIN TYP(2) MAX UNIT t Propagationdelaytime,low-tohigh-leveloutput C =150pF 0.5 10 μs PLH(R) L t Propagationdelaytime,high-tolow-leveloutput C =150pF 0.5 10 μs PHL(R) L t Pulseskew(3) 300 ns sk(p) (1) TestconditionsareC1–C4=0.1μFatV =5V– 0.5V. CC (2) AlltypicalvaluesareatV =5V,andT =25(cid:176) C. CC A (3) Pulseskewisdefinedas|t –t |ofeachchannelofthesamedevice. PLH PHL SubmitDocumentationFeedback 5

TRS208 5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH – 15-kV ESD PROTECTION www.ti.com SLLS810–JULY2007 PARAMETER MEASUREMENT INFORMATION 3 V Input 1.5 V 1.5 V RS-232 0 V Output Generator (see Note B) 50W C t t L PHL(D) PLH (D) RL (see NoteA) V 3 V 3 V OH Output –3 V –3 V V OL TEST CIRCUIT 6 V VOLTAGE WAVEFORMS SR(tf) = t or t PHL(D) PLH (D) NOTES: A. C includes probe and jig capacitance. L B. The pulse generator has the following characteristics: PRR = 120 kbit/s, Z = 50W, 50% duty cycle, t £10 ns, t £10 ns. O r f Figure1.DriverSlewRate 3 V RS-232 Input 1.5 V 1.5 V Generator Output 0 V (see Note B) 50W C t t L PHL(D) PLH (D) RL (see NoteA) V OH Output 50% 50% V OL TEST CIRCUIT VOLTAGE WAVEFORMS NOTES: A. C includes probe and jig capacitance. L B. The pulse generator has the following characteristics: PRR = 120 kbit/s, Z = 50W, 50% duty cycle, t £10 ns, t £10 ns. O r f Figure2.DriverPulseSkew 3 V Input 1.5 V 1.5 V Output -3 V Generator (see Note B) 50W t t C PHL(R) PLH (R) L (see NoteA) V OH Output 50% 50% V OL TEST CIRCUIT VOLTAGE WAVEFORMS NOTES: A. C includes probe and jig capacitance. L B. The pulse generator has the following characteristics: Z = 50W, 50% duty cycle, t £10 ns, t £10 ns. O r f Figure3.ReceiverPropagationDelayTimes 6 SubmitDocumentationFeedback

TRS208 5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH – 15-kV ESD PROTECTION www.ti.com SLLS810–JULY2007 APPLICATION INFORMATION 1 24 DOUT2 DOUT3 2 23 DOUT1 RIN3 5 kW 3 22 RIN2 ROUT3 5 kW 5 V ROUT2 4 400 kW 21 DIN4 5 V 20 DOUT4 400 kW 5 V 5 DIN1 400 kW ROUT1 6 19 DIN3 5 V 400 kW 7 18 RIN1 DIN2 5 kW GND 8 17 ROUT4 + 16 0.1mF RIN4 – 5 kW 0.1mF 9 V 16 V CC 15 0.1mF – V– – + 6.3 V + 10 C1+ 14 C2– 11 V+ – 0.1mF + 16 V + 0.1mF 6.3 V – 12 C1– C2+ 13 NOTES: A. Resistor values shown are nominal. B. Non-polarized ceramic capacitors are acceptable. If polarized tantalum or electrolytic capacitors are used, they should be connected as shown. Figure4.TypicalOperatingCircuitandCapacitorValues SubmitDocumentationFeedback 7

TRS208 5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH – 15-kV ESD PROTECTION www.ti.com SLLS810–JULY2007 APPLICATION INFORMATION (continued) Capacitor Selection The capacitor type used for C1–C4 is not critical for proper operation. The TRS208 requires 0.1-μF capacitors, although capacitors up to 10 μF can be used without harm. Ceramic dielectrics are suggested for the 0.1-μF capacitors. When using the minimum recommended capacitor values, ensure that the capacitance value does not degrade excessively as the operating temperature varies. If in doubt, use capacitors with a larger (e.g., 2· ) nominal value. The capacitors' effective series resistance (ESR), which usually rises at low temperatures, influencestheamountofrippleonV+andV–. Uselargercapacitors(upto10μF)toreducetheoutputimpedanceatV+andV–. Bypass V to ground with at least 0.1 μF. In applications sensitive to power-supply noise generated by the CC charge pumps, decouple V to ground with a capacitor the same size as (or larger than) the charge-pump CC capacitors(C1–C4). Electrostatic Discharge (ESD) Protection TI TRS208 devices have standard ESD protection structures incorporated on the pins to protect against electrostatic discharges encountered during assembly and handling. In addition, the RS-232 bus pins (driver outputs and receiver inputs) of these devices have an extra level of ESD protection. Advanced ESD structures weredesignedtosuccessfullyprotectthesebuspinsagainstESDdischargeof– 15kVwhenpowereddown. ESD Test Conditions ESD testing is stringently performed by TI, based on various conditions and procedures. Please contact TI for a reliabilityreportthatdocumentstestsetup,methodology,andresults. Human-Body Model (HBM) The HBM of ESD testing is shown in Figure 5, while Figure 6 shows the current waveform that is generated duringadischarge into a low impedance. The model consists of a 100-pF capacitor, charged to the ESD voltage ofconcernandsubsequentlydischargedintotheDUTthrougha1.5-kW resistor. R D 1.5 kW V + CS DUT HBM - 100 pF Figure5.HBMESDTestCircuit 8 SubmitDocumentationFeedback

TRS208 5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH – 15-kV ESD PROTECTION www.ti.com SLLS810–JULY2007 APPLICATION INFORMATION (continued) 1.5 V = 2 kV HBM DUT = 10-V, 1-WZener Diode | 1.0 A - T U D I 0.5 0.0 0 50 100 150 200 Time - ns Figure6.TypicalHBMCurrentWaveform Machine Model (MM) The MM ESD test applies to all pins using a 200-pF capacitor with no discharge resistance. The purpose of the MM test is to simulate possible ESD conditions that can occur during the handling and assembly processes of manufacturing. In this case, ESD protection is required for all pins, not just RS-232 pins. However, after PC boardassembly,theMMtestnolongerisaspertinenttotheRS-232pins. SubmitDocumentationFeedback 9

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 PACKAGING INFORMATION Orderable Device Status Package Type Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Op Temp (°C) Device Marking Samples (1) Drawing Qty (2) (6) (3) (4/5) TRS208CDB ACTIVE SSOP DB 24 60 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 RU08C & no Sb/Br) TRS208CDBR ACTIVE SSOP DB 24 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 RU08C & no Sb/Br) TRS208CDWR ACTIVE SOIC DW 24 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 TRS208C & no Sb/Br) TRS208IDB ACTIVE SSOP DB 24 60 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 RU08I & no Sb/Br) TRS208IDBR ACTIVE SSOP DB 24 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 RU08I & no Sb/Br) TRS208IDWR ACTIVE SOIC DW 24 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 TRS208I & no Sb/Br) (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) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based flame retardants must also meet the <=1000ppm threshold requirement. (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. Addendum-Page 1

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. 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 2

PACKAGE MATERIALS INFORMATION www.ti.com 14-Feb-2019 TAPE AND REEL INFORMATION *Alldimensionsarenominal Device Package Package Pins SPQ Reel Reel A0 B0 K0 P1 W Pin1 Type Drawing Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant (mm) W1(mm) TRS208CDBR SSOP DB 24 2000 330.0 16.4 8.2 8.8 2.5 12.0 16.0 Q1 TRS208CDWR SOIC DW 24 2000 330.0 24.4 10.75 15.7 2.7 12.0 24.0 Q1 TRS208IDBR SSOP DB 24 2000 330.0 16.4 8.2 8.8 2.5 12.0 16.0 Q1 TRS208IDWR SOIC DW 24 2000 330.0 24.4 10.75 15.7 2.7 12.0 24.0 Q1 PackMaterials-Page1

PACKAGE MATERIALS INFORMATION www.ti.com 14-Feb-2019 *Alldimensionsarenominal Device PackageType PackageDrawing Pins SPQ Length(mm) Width(mm) Height(mm) TRS208CDBR SSOP DB 24 2000 367.0 367.0 38.0 TRS208CDWR SOIC DW 24 2000 350.0 350.0 43.0 TRS208IDBR SSOP DB 24 2000 367.0 367.0 38.0 TRS208IDWR SOIC DW 24 2000 350.0 350.0 43.0 PackMaterials-Page2

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MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,65 0,15 M 0,22 28 15 0,25 0,09 5,60 8,20 5,00 7,40 Gage Plane 1 14 0,25 A 0°–(cid:1)8° 0,95 0,55 Seating Plane 2,00 MAX 0,05 MIN 0,10 PINS ** 14 16 20 24 28 30 38 DIM A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 4040065/E 12/01 NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusion not to exceed 0,15. D. Falls within JEDEC MO-150 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265

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