SN75C188 QUADRUPLE LOW-POWER LINE DRIVERS SLLS033F – JANUARY 1988 – REVISED MARCH 1997 (cid:1) Bi-MOS Technology With TTL and CMOS D, DB†, OR N PACKAGE Compatibility (TOP VIEW) (cid:1) Meets or Exceeds the Requirements of ANSI EIA/TIA-232-E and ITU VCC– 1 14 VCC+ Recommendation V.28 1A 2 13 4B (cid:1) Very Low Quiescent Current...95 m A Typ 1Y 3 12 4A (cid:1) VCC± = ±12 V 22AB 45 1110 43YB Current-Limited Outputs...10 mA Typ 2Y 6 9 3A (cid:1) CMOS-and TTL-Compatible Inputs GND 7 8 3Y (cid:1) On-Chip Slew Rate Limited to 30 V/m s max (cid:1) †The DB package is only avalable left-end taped Flexible Supply Voltage Range and reeled, i.e., order device SN75C188DBLE. (cid:1) Characterized at VCC± of ±4.5 V and ±15 V (cid:1) Functionally Interchangeable With Texas Instruments SN75188, Motorola MC1488, and National Semiconductor DS14C88 description The SN75C188 is a monolithic, low-power, quadruple line driver that interfaces data terminal equipment with data communications equipment. This device is designed to conform to ANSI Standard EIA/TIA-232-E. An external diode in series with each supply-voltage terminal is needed to protect the SN75C188 under certain fault conditions to comply with EIA/TIA-232-E. The SN75C188 is characterized for operation from 0°C to 70°C. Function Tables DRIVER 1 B Y H L L H DRIVERS 2 – 4 A B Y H H L L X H X L H H = high level, L = low level, X = don’t care Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright  1997, Texas Instruments Incorporated 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

SN75C188 QUADRUPLE LOW-POWER LINE DRIVERS SLLS033F – JANUARY 1988 – REVISED MARCH 1997 logic symbol† logic diagram (positive logic) 3 2 3 2 1Y 1A 1Y 1A 2A 54 & 6 2Y 2A 54 6 2Y 2B 2B 9 9 3A 8 3A 8 10 3Y 10 3Y 3B 3B 12 12 4A 11 4A 11 13 4Y 13 4Y 4B 4B †This symbol is in accordance with ANSI/IEEE Std 91-1984 positive logic and IEC Publication 617-12. Y = A (driver 1) Y = AB or A + B (drivers 2 through 4) schematics of inputs and outputs EACH INPUT EACH OUTPUT‡ VCC+ VCC+ Internal Input A 1.4-V Ref to GND Input B (drivers 2, 3 and 4 only) (driver 1 only) 160 W Output 74 W GND GND VCC– 72 W VCC– ‡All resistor values shown are nominal. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN75C188 QUADRUPLE LOW-POWER LINE DRIVERS SLLS033F – JANUARY 1988 – REVISED MARCH 1997 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V CC+ Supply voltage, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –15 V CC– Input voltage range, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V to V I CC– CC+ Output voltage range, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V –6 V to V +6 V O CC– CC+ Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Operating free-air temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C A Storage temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C stg 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. NOTE 1: All voltage values are with respect to the network ground terminal. DISSIPATION RATING TABLE PPAACCKKAAGGEE TAA ≤ 25°C DERATING FACTOR TAA = 70°C POWER RATING ABOVE TA = 25°C POWER RATING D 950 mW 7.6 mW/°C 608 mW DB 525 mW 4.2 mW/°C 336 mW N 1150 mW 9.2 mW/°C 736 mW recommended operating conditions MIN NOM MAX UNIT Supply voltage, VCC+ 4.5 12 15 V Supply voltage, VCC– –4.5 –12 –15 V Input voltage, VI VCC–+2 VCC+ V High-level Input voltage, VIH 2 V Low-level Input voltage, VIL 0.8 V Operating free-air temperature, TA 0 70 °C POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3

SN75C188 QUADRUPLE LOW-POWER LINE DRIVERS SLLS033F – JANUARY 1988 – REVISED MARCH 1997 electrical characteristics over operating free-air temperature range, V = 12 V, V = –12 V CC+ CC– (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VCCCC++ = 5 V,, 44 VCC– = –5 V VVOOHH HHiigghh-lleevveell oouuttppuutt vvoollttaaggee VVIILL == 00.88 VV, RRLL == 33 kkWW VV VCCCC++ = 12 V,, 1100 VCC– = –12 V VCCCC++ = 5 V,, –44 Low-level output voltagge VCC– = –5 V VVOOLL VVIIHH == 22 VV, RRLL == 33 kkWW VV (see Note 2) VCCCC++ = 12 V,, –1100 VCC– = –12 V IIH High-level input current VI = 5 V 10 m A IIL Low-level input current VI = 0 –10 m A Higgh-level short-circuit IIOOSS((HH)) output current‡ VVII == 00.88 VV, VVOO == 00 oorr VVCCCC– –55.55 –1100 –1199.55 mmAA Low-level short-circuit IIOOSS((LL)) output current‡ VVII == 22 VV, VVOO == 00 oorr VVCCCC+ 55.55 1100 1199.55 mmAA rO Output resistance, power off VCC+ = 0, VCC– = 0, VI = –2 V to 2 V 300 W VCCCC++ = 5 V,, VVCCCC–– = –55 VV,, AAllll iinnppuuttss aatt 22 VV oorr 00.88 VV 9900 116600 No load IICCCC+ SSuuppppllyy ccuurrrreenntt ffrroomm VVCCCC+ mm AA VCCCC++ = 12 V,, VVCCCC–– = –1122 VV,, AAllll iinnppuuttss aatt 22 VV oorr 00.88 VV 9955 116600 No load VCCCC++ = 5 V,, VVCCCC–– = –55 VV,, AAllll iinnppuuttss aatt 22 VV oorr 00.88 VV –9900 –116600 No load IICCCC– SSuuppppllyy ccuurrrreenntt ffrroomm VVCCCC– mm AA VCCCC++ = 12 V, VCCCC– = –12 AAllll iinnppuuttss aatt 22 VV oorr 00.88 VV –9955 –116600 No load †All typical values are at TA = 25°C. ‡Not more than one output should be shorted at a time. NOTE 2: The algebraic convention, in which the more positive (less negative) limit is designated as maximum, is used in this data sheet for logic levels only; e.g., if –4 V is a maximum, the typical value is a more negative voltage. switching characteristics, V = 12 V, V = –12 V, T = 25°C CC+ CC– A PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH Propagation delay time, low- to high-level output§ RLL = 3 kW, , CLL = 15 pF,, 3 m s tPHL Propagation delay time, high- to low-level output§ See Figure 1 3.5 m s tTLH Transition time, low- to high-level output¶ 0.53 3.2 m s tTHL Transition time, high- to low-level output¶ 0.53 3.2 m s tTLH Transition time, low- to high-level output# RLL = 3 k W to 7 kW, , CLL = 2500 pF,, 1.5 m s tTHL Transition time, high- to low-level output# See Figure 1 1.5 m s SR Output slew rate§ RL = 3 k W to 7 kW, CL = 15 pF 6 15 30 V/m s §Measured at the 50% level ¶Measured between the 10% and 90% points on the output waveform #Measured between the 3-V and –3-V points on the output waveform (EIA/TIA-232-E conditions), all unused inputs tied either high or low 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN75C188 QUADRUPLE LOW-POWER LINE DRIVERS SLLS033F – JANUARY 1988 – REVISED MARCH 1997 PARAMETER MEASUREMENT INFORMATION Input 3 V Input 1.5 V 1.5 V Pulse 0 V Generator Output tPHL tPLH (see Note A) 90% 90% VOH RL C(sLee Note B) Output 501%0% 1500%% VOL tTHL tTLH TEST CIRCUIT VOLTAGE WAVEFORMS NOTES: A. The pulse generator has the following characteristics: tw = 25 m s, PRR = 20 kHZ, ZO = 50 W , tr = tf ≤ 50 ns. B. CL includes probe and jig capacitance. Figure 1. Test Circuit and Voltage Waveforms POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5

SN75C188 QUADRUPLE LOW-POWER LINE DRIVERS SLLS033F – JANUARY 1988 – REVISED MARCH 1997 TYPICAL CHARACTERISTICS OUTPUT CURRENT vs VOLTAGE TRANSFER CHARACTERISTICS OUTPUT VOLTAGE 15 VCC± = ±15 V 20 VCC± = ±12 V 12 VCC± = ±12 V 16 TA = 25°C 9 VCC± = ±9 V 12 VOL = (VI = 2 V) oltage – V 36 VCC± = ±5 V rrent – mA 48 3-kW Load Line V u put 0 ut C 0 ÁÁOut Á–3 VCC± = ±5 V utp –4 – O ÁÁVO VOÁ–6 VCC±= ±9 V ÁO – OÁ–8 VOH (VI = 0.8 V) II –9 VCC± = ±12 V ÁÁ–12 RL = 3 kW –12 TA = 25°C VCC± = ±5 V –16 –15 –20 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 –16 –12 –8 –4 0 4 8 12 16 VI – Input Voltage – V VO – Output Voltage – V Figure 2 Figure 3 SHORT-CIRCUIT OUTPUT CURRENT OUTPUT VOLTAGE vs vs FREE-AIR TEMPERATURE FREE-AIR TEMPERATURE 15 12 VCC± = ±12 V RL = 3 kW A VOH (VCC± = ±12 V, VI = 0.8 V) m – 10 8 ent IOS(L) rr VI = 2 V V ut Cu 5 VO = 0 or VCC+ ge – 4 VOH (VCC± = ±5 V, VI = 0.8 V) p a ut olt O 0 V 0 Circuit Output VOL( VCC± = ±5 V, VI = 2 V) hort- –5 IVOI S=( H0.)8 V – VO –4 ÁÁ– S VO = 0 or VCC– ÁÁIOS OS –10 –8 VOL (VCC±= ±12 V, VI = 2 V) I ÁÁ –15 –12 0 20 40 60 80 100 120 0 20 40 60 80 100 120 TA – Free-Air Temperature – °C TA – Free-Air Temperature – °C Figure 4 Figure 5 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN75C188 QUADRUPLE LOW-POWER LINE DRIVERS SLLS033F – JANUARY 1988 – REVISED MARCH 1997 TYPICAL CHARACTERISTICS INPUT CURRENT POWER-OFF OUTPUT RESISTANCE vs vs FREE-AIR TEMPERATURE FREE-AIR TEMPERATURE 120 500 VCC± = ±12 V VCC+ = VCC– = 0 100 475 W – e 80 c 450 n – nA 60 IIH, VI = 5 V sista 425 VO = –2 V nt Re re ut VO = 2 V ur 40 p 400 C ut nput 20 off O 375 – I er- II II 0 ow 350 P IIL, VI = 0 – o O –20 rr 325 –40 300 0 20 40 60 80 100 120 0 20 40 60 80 100 120 TA – Free-Air Temperature – °C TA – Free-Air Temperature – °C Figure 6 Figure 7 SUPPLY CURRENT OUTPUT SLEW RATE vs vs FREE-AIR TEMPERATURE FREE-AIR TEMPERATURE 120 30 VCC± = ±12 V VCC± = ±12 V CL = 15 pF ICC+ 80 VCC± = ±5 V 25 Slew Rate A V/s Positive Transition ment – 40 RL = ∞ Rate – 20 RL = 3 kW RL = 7 kW urr VI = 0.8 V or 2 V w C e y 0 Sl 15 Suppl utput Slew Rate RRLL == 37 kkWW – –40 O 10 Negative ± – C R Transition C S I –80 VCC± = ±5 V 5 ICC– VCC± = ±12 V –120 0 0 20 40 60 80 100 120 0 20 40 60 80 100 120 TA – Free-Air Temperature – °C TA – Free-Air Temperature – °C Figure 8 Figure 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7

SN75C188 QUADRUPLE LOW-POWER LINE DRIVERS SLLS033F – JANUARY 1988 – REVISED MARCH 1997 TYPICAL CHARACTERISTICS PROPAGATION DELAY TIME OUTPUT TRANSITION TIME vs vs FREE-AIR TEMPERATURE FREE-AIR TEMPERATURE 2 2 tPHL RL = 3 kW RL = 7 kW 1.75 VVCCCC+– == –121 2V V tTHL s RL = 3 kW to 7 kW s mme – 1.5 VCCL C= ±1 5= p±F12 V me – 1.5 tTLH Ti m CL = 2500 pF y Ti 1.25 ela on CL = 15 pF tTLH on D 1 tPLH RL = 3 kW nsiti 1 tTHL d – Propagatid 0.5 RL = 7 kW – Output Tra 00.7.55 ttpp tt 0.25 0 0 0 20 40 60 80 100 120 0 20 40 60 80 100 120 TA – Free-Air Temperature – °C TA – Free-Air Temperature – °C Figure 10 Figure 11 APPLICATION INFORMATION Output to RTL –0.7 V to 3.7 V 1/4 ’C188 3 V Output to DTL –0.7 V to 5.7 V Input From 1/4 ’C188 TTL, DTL, or CMOS 5 V Output to HNIL or 10-V CMOS –0.7 V to 10 V 1/4 ’C188 Output to MOS –10 V to 0 V 1 kW 1/4 ’C188 10 kW VCC± = ±12 V –12 V Figure 12. Logic Translator Applications 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN75C188 QUADRUPLE LOW-POWER LINE DRIVERS SLLS033F – JANUARY 1988 – REVISED MARCH 1997 APPLICATION INFORMATION VCC+ Output VCC+ +15 V SN75C188 SN75C188 VCC– VCC– NOTE A: External diodes placed in series with the VCC+ and VCC– leads protect the SN75C188 in the fault condition where the device outputs are shorted to ±15 V and the power supplies are at low voltage and provide low-impedance paths to GND. Figure 13. Power Supply Protection to Meet Power-Off Fault Conditions of Standard EIA/TIA-232-E POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 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) SN75C188D ACTIVE SOIC D 14 50 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 SN75C188 & no Sb/Br) SN75C188DBR ACTIVE SSOP DB 14 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 CA188 & no Sb/Br) SN75C188DR ACTIVE SOIC D 14 2500 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 SN75C188 & no Sb/Br) SN75C188DRE4 ACTIVE SOIC D 14 2500 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 SN75C188 & no Sb/Br) SN75C188N ACTIVE PDIP N 14 25 Green (RoHS NIPDAU N / A for Pkg Type 0 to 70 SN75C188N & no Sb/Br) SN75C188NSR ACTIVE SO NS 14 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 75C188 & 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 20-Dec-2018 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) SN75C188DR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 SN75C188DR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 SN75C188NSR SO NS 14 2000 330.0 16.4 8.2 10.5 2.5 12.0 16.0 Q1 PackMaterials-Page1

PACKAGE MATERIALS INFORMATION www.ti.com 20-Dec-2018 *Alldimensionsarenominal Device PackageType PackageDrawing Pins SPQ Length(mm) Width(mm) Height(mm) SN75C188DR SOIC D 14 2500 333.2 345.9 28.6 SN75C188DR SOIC D 14 2500 367.0 367.0 38.0 SN75C188NSR SO NS 14 2000 367.0 367.0 38.0 PackMaterials-Page2

None

None

None

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

None

IMPORTANTNOTICEANDDISCLAIMER TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable standards, and any other safety, security, or other requirements. These resources are subject to change without notice. TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource. Other reproduction and display of these resources is prohibited. No license is granted to any other TI intellectual property right or to any third party intellectual property right. TI disclaims responsibility for, and you will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these resources. TI’s products are provided subject to TI’s Terms of Sale (www.ti.com/legal/termsofsale.html) or other applicable terms available either on ti.com or provided in conjunction with such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2020, Texas Instruments Incorporated