TL145406 TRIPLE RS-232 DRIVERS/RECEIVERS SLLS185A – DECEMBER 1994 – REVISED MARCH 1995 D D D D D D DW OR N PACKAGE (TOP VIEW) Meets or Exceeds the Requirements of ANSI EIA/TIA-232-E and ITU V.28 Designed to Support Data Rates Up to 120 kbits/s Over 3-m Cable ESD Protection Exceeds 5 kV on All Pins Flow-Through Design Wide-Driver Supply Voltage . . . ±4.5 V to ±15 V Functionally Interchangeable With Motorola MC145406 and Texas Instruments SN75C1406 VDD 1RA 1DY 2RA 2DY 3RA 3DY VSS 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 VCC 1RY 1DA 2RY 2DA 3RY 3DA GND description The TL145406 is a bipolar device containing three independent drivers and receivers that are used to interface data terminal equipment (DTE) with data circuit-terminating equipment (DCE). The drivers and receivers of the TL145406 are similar to those of the SN75188 quadruple driver and SN75189A quadruple receiver, respectively. The pinout matches the flow-through design of the SN75C1406 to reduce the board space required and allow easy interconnection. The bipolar circuits and processing of the TL145406 provide a rugged low-cost solution for this function at the expense of quiescent power and external passive components relative to the SN75C1406. The TL145406 complies with the requirements of the EIA/TIA 232-E and ITU (formerly CCITT) V.28 standards. These standards are for data interchange between a host computer and peripheral at signalling rates up to 20 kbit/s. The switching speeds of the TL145406 are fast enough to support rates up to 120 kbit/s with lower capacitive loads (shorter cables). Interoperability at the higher signalling rates cannot be assured unless the designer has design control of the cable and the interface circuits at both ends. For interoperability at signalling rates to 120 kbit/s, use of EIA/TIA-423-B (ITU V.10) and EIA/TIA-422-B (ITU V.11) standards are recommended. The TL145406 is characterized for operation from 0°C to 70°C. logic symbol† 1RA 2RA 3RA 1DY 2DY 3DY logic diagram (positive logic) 2 15 4 13 6 11 3 14 5 12 7 10 1RY 2RY Typical of each receiver RA 15, 13, 11 2, 4, 6 RY 3RY 1DA Typical of each driver 2DA 3DA DY 3, 5, 7 14, 12, 10 DA † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 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 1995, 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 TL145406 TRIPLE RS-232 DRIVERS/RECEIVERS SLLS185A – DECEMBER 1994 – REVISED MARCH 1995 schematic (each driver) To Other Drivers VDD ESD 11.6 kΩ Input DAx 9.4 kΩ ESD 75.8 Ω 320 Ω ESD DYx Output 4.2 kΩ GND To Other Drivers 10.4 kΩ VSS 3.3 kΩ 68.5 Ω ESD To Other Drivers Resistor values shown are nominal. schematic (each receiver) To Other Receivers ESD 9 kΩ 5 kΩ VCC 1.66 kΩ ESD RYx Output 2 kΩ 3.8 kΩ Input RAx ESD 10 kΩ GND To Other Receivers Resistor values shown are nominal. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TL145406 TRIPLE RS-232 DRIVERS/RECEIVERS SLLS185A – DECEMBER 1994 – REVISED MARCH 1995 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 V Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V Supply voltage, VSS (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 15 V Input voltage range: Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 15 V to 7 V Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 30 V to 30 V Driver output voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 15 V to 15 V Receiver low-level output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 60°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 voltages are with respect to the network ground terminal. DISSIPATION RATING TABLE‡ PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA ≤ 70°C POWER RATING DW 1256 mW 9.7 mW/°C 819 mW N 1943 mW 14.9 mW/°C 1272 mW ‡ Dissipation ratings are the inverse of the traditional junction-to-case thermal resistance (RθJA). recommended operating conditions MIN NOM MAX Supply voltage, VDD 7.5 9 15 V Supply voltage, VSS – 7.5 –9 – 15 V Supply voltage, VCC 4.5 5 5.5 V High-level input voltage, VIH (driver only) 1.9 V Low-level input voltage, VIL (driver only) 0.8 Driver –6 High level output current, High-level current IOH Low level output current, Low-level current IOL Receiver – 0.5 Driver 6 Receiver 16 Operating free-air temperature, TA 0 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT 70 V mA mA °C 3 TL145406 TRIPLE RS-232 DRIVERS/RECEIVERS SLLS185A – DECEMBER 1994 – REVISED MARCH 1995 supply currents PARAMETER TEST CONDITIONS All inputs at 1.9 V, IDD No load Supply current from VDD No load All inputs at 1.9 V, No load Supply current from VSS All inputs at 0.8 V, ICC Supply current from VCC No load All inputs at 5 V, TYP MAX VSS = – 9 V 15 VSS = – 12 V 19 VSS = – 15 V 25 VSS = – 9 V VSS = – 12 V 4.5 VSS = – 15 V 9 VDD = 9 V, VDD = 12 V, VSS = – 9 V VSS = – 12 V – 15 VDD = 15 V, VDD = 9 V, VSS = – 15 V – 25 VSS = – 9 V VSS = – 12 V – 3.2 VSS = – 15 V – 3.2 VDD = 15 V, VDD = 9 V, All inputs at 0.8 V, ISS MIN VDD = 9 V, VDD = 12 V, VDD = 12 V, VDD = 15 V, VDD = 12 V, VDD = 15 V, 5.5 – 19 – 3.2 No load, VCC = 5 V 13.2 20 UNIT mA mA mA mA mA DRIVER SECTION electrical characteristics over recommended operating free-air temperture range, VDD = 9 V, VSS = –9 V, VCC = 5 V (unless otherwise noted) PARAMETER VOH VOL High-level output voltage IIH IIL High-level input current IOS(H) IOS(L) rO TEST CONDITIONS MIN TYP 6 7.5 MAX UNIT VIL = 0.8 V, VIH = 1.9 V, RL = 3 kΩ, See Figure 1 RL = 3 kΩ, See Figure 1 VI = 5 V, VI = 0, See Figure 2 10 µA Low-level input current See Figure 2 – 1.6 mA High-level short-circuit output current (see Note 3) VIL = 0.8 V, VO = 0 or VSS, – 19.5 mA Low-level output voltage (see Note 2) See Figure 1 – 7.5 – 4.5 – 10 V –6 V Low-level short-circuit output current VIH = 2 V, VO = 0 or VDD, See Figure 1 4.5 10 19.5 mA Output resistance (see Note 4) VCC = VDD = VSS = 0, VO = – 2 V to 2 V 300 Ω NOTES: 2. The algebraic convention, where the more positive (less negative) limit is designated as maximum, is used in this data sheet for logic levels only (e.g., if –10 V is maximum, the typical value is a more negative voltage). 3. Output short-circuit conditions must maintain the total power dissipation below absolute maximum ratings. 4. Test conditions are those specified by EIA/TIA-232-E and as listed above. switching characteristics, VCC = 5 V, VDD = 12 V, VSS = –12 V, TA = 25°C PARAMETER tPLH tPHL tTLH tTHL TEST CONDITIONS Propagation delay time, low- to high-level output Propagation delay time, high- to low-level output Transition time, time lowlow to high-level high level output Transition time, time highhigh to low-level low level output TYP MAX UNIT 315 500 ns 75 175 ns 60 100 ns RL = 3 kΩ to 7 kΩ, CL = 2500 pF, See Figure 3 and Note 5 1.7 2.5 µs RL = 3 kΩ to 7 kΩ, See Figure 3 40 75 ns 1.5 2.5 µs RL = 3 kΩ to 7 kΩ,, See Figure 3 CL = 15 pF,, RL = 3 kΩ to 7 kΩ, See Figure 3 CL = 15 pF, CL = 15 pF, RL = 3 kΩ to 7 kΩ, CL = 2500 pF, See Figure 3 and Note 6 MIN NOTES: 5. Measured between – 3 V and 3 V points of the output waveform (EIA/TIA-232-E conditions). All unused inputs are tied. 6. Measured between 3 V and – 3 V points of the output waveform (EIA/TIA-232-E conditions). All unused inputs are tied. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TL145406 TRIPLE RS-232 DRIVERS/RECEIVERS SLLS185A – DECEMBER 1994 – REVISED MARCH 1995 RECEIVER SECTION electrical characteristics over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS See Figure 5 TA = 25°C TA = 0°C to 70 °C MIN TYPĔ MAX 1.75 1.9 2.3 VIT IT+ Positive going threshold voltage Positive-going VIT– Vhys Negative-going threshold voltage VOH High level output voltage High-level IOH = – 0.5 0 5 mA VIH = 0.75 V Inputs open VOL Low-level output voltage IIH High level input current High-level IOL = 10 mA, VI = 25 V, VI = 3 V See Figure 5 3.6 See Figure 5 0.43 IIL Low level input current Low-level VI = 3 V, VI = – 25 V, See Figure 5 – 3.6 VI = – 3 V, See Figure 5 – 0.43 1.55 0.75 Input hysteresis (VIT + – VIT–) 2.3 0.97 1.25 4 5 0.2 0.45 UNIT V 0.5 2.6 2.6 IOS Short-circuit output current † All typical values are at TA = 25°C, VCC = 5, VDD = 9 V, and VSS = – 9 V. 8.3 – 8.3 V V mA mA – 3.4 –12 mA TYP MAX UNIT 107 425 ns switching characteristics, VCC = 5 V, VDD = 12 V, VSS = –12 V, TA = 25°C PARAMETER TEST CONDITIONS tPLH tPHL Propagation delay time, low- to high-level output tTLH tTHL Transition time, low- to high-level output Propagation delay time, high- to low-level output MIN RL = 5 kΩ, CL = 50 pF,, See Figure 6 Transition time, high- to low-level output 42 150 ns 175 400 ns 16 60 ns PARAMETER MEASUREMENT INFORMATION IOS(L) VDD VCC VDD VCC VDD or GND IIH – IOS(H) VSS or GND VI VI – IIL VO RL = 3 kΩ VI VSS VSS Figure 1. Driver Test Circuit for VOH, VOL, IOS(H), and IOS(L) POST OFFICE BOX 655303 Figure 2. Driver Test Circuit for IIH and IIL • DALLAS, TEXAS 75265 5 TL145406 TRIPLE RS-232 DRIVERS/RECEIVERS SLLS185A – DECEMBER 1994 – REVISED MARCH 1995 PARAMETER MEASUREMENT INFORMATION 3V 1.5 V Input VDD Input V CC 1.5 V 0 t PHL Pulse Generator CL (see Note B) RL See Note A 90% Output VSS t PLH 50% 10% VOH 90% 50% 10% VOL t THL t TLH TEST CIRCUIT VOLTAGE WAVEFORMS The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHz, ZO = 50 Ω, tr = tf < 50 ns. CL includes probe and jig capacitance. NOTES: A. B. Figure 3. Driver Test Circuit and Voltage Waveforms VDD VCC VDD VCC – IOS VI – IOH VIT, VI VOH VOL VSS IOL VSS Figure 4. Receiver Test Circuit for IOS Figure 5. Receiver Test Circuit for VIT, VOH, and VOL 4V Input VDD Input 50% 50% 0 VCC t PHL Pulse Generator CL (see Note B) RL See Note A 90% Output 50% 10% t PLH 50% 10% VSS TEST CIRCUIT t THL The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHz, ZO = 50 Ω, tr = tf < 50 ns. CL includes probe and jig capacitance. Figure 6. Receiver Propagation and Transition Times 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 VOH VOL t TLH VOLTAGE WAVEFORMS NOTES: A. B. 90% TL145406 TRIPLE RS-232 DRIVERS/RECEIVERS SLLS185A – DECEMBER 1994 – REVISED MARCH 1995 TYPICAL CHARACTERISTICS DRIVER OUTPUT CURRENT vs OUTPUT VOLTAGE DRIVER VOLTAGE TRANSFER CHARACTERISTICS ÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎ 12 VDD = 9 V, VSS = – 9 V 6 0 –3 ÎÎÎÎ ÎÎÎÎ –6 – 12 0 8 4 0 ÎÎÎ –4 3-kΩ Load Line –8 – 12 VOH(VI = 0.8 V) RL = 3 kΩ TA = 25°C –9 VOL(VI = 1.9 V) 12 VDD = 6 V, VSS = – 6 V 3 VDD = 9 V VSS = – 9 V TA = 25°C 16 IO I O – Output Current – mA VO VO – Output Voltage – V 9 ÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ 20 VDD = 12 V, VSS = – 12 V – 16 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 VI – Input Voltage – V – 20 – 16 2 – 12 Figure 7 –8 –4 0 4 8 VO – Output Voltage – V DRIVER DRIVER SLEW RATE vs LOAD CAPACITANCE ÁÁÁÁ ÁÁÁÁ ÎÎÎÎ ÁÁÁÁ 1000 VDD = 9 V VSS = – 9 V RL = 3 kΩ TA = 25°C IOS(L) (VI = 1.9 V) 6 SR – Slew Rate – V/ µs IIOS OS – Short-Circuit Output Current – mA 12 3 ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎÎ ÁÁ ÎÎÎÎÎÎ ÁÁ 0 VDD = 9 V VSS = – 9 V VO = 0 –3 16 Figure 8 SHORT-CIRCUIT OUTPUT CURRENT vs FREE-AIR TEMPERATURE 9 12 100 10 –6 IOS(H) (VI = 0.8 V) –9 1 – 12 0 10 20 30 40 50 60 70 10 TA – Free-Air Temperature – °C 100 1000 10000 CL – Load Capacitance – pF Figure 9 Figure 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 TL145406 TRIPLE RS-232 DRIVERS/RECEIVERS SLLS185A – DECEMBER 1994 – REVISED MARCH 1995 RECEIVER RECEIVER INPUT THRESHOLD VOLTAGE vs FREE-AIR TEMPERATURE INPUT THRESHOLD VOLTAGE vs SUPPLY VOLTAGE 2.4 2 2.2 1.8 VIT + 2 Input Threshold Voltage – V Input Threshold Voltage – V TYPICAL CHARACTERISTICS 1.8 1.6 1.4 1.2 VIT – 1 1.4 1.2 0.6 0.2 20 30 40 50 60 VIT– 0.8 0.6 10 ÎÎÎ ÎÎÎ 1 0.4 0 VIT+ 1.6 0.8 0.4 ÎÎ 0 2 70 3 TA – Free-Air Temperature – °C Figure 11 RECEIVER ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ ÁÁÁÁ ÎÎÎÎÎ 16 ÁÁÁÁ ÁÁÁÁ ÎÎÎÎÎ ÁÁÁÁ CC = 12 pF 2 CC = 100 pF 1 0 10 40 100 400 1000 4000 10000 tw – Pulse Duration – ns NOTE A: This figure shows the maximum amplitude of a positive-going pulse that, starting from 0, does not cause a change of the output level. 14 VCC– VCC – Supply Voltage – V Amplitude – V CC = 500 pF 3 12 10 8 6 4 2 RL ≥ 3 kΩ (from each output to GND) 0 0 Figure 13 8 10 RECEIVER CC = 300 pF 4 9 MAXIMUM SUPPLY VOLTAGE vs FREE-AIR TEMPERATURE VCC = 5 V TA = 25°C See Note A 5 5 6 7 8 VCC – Supply Voltage – V Figure 12 NOISE REJECTION 6 4 10 20 30 40 50 60 TA – Free-Air Temperature – °C Figure 14 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 70 TL145406 TRIPLE RS-232 DRIVERS/RECEIVERS SLLS185A – DECEMBER 1994 – REVISED MARCH 1995 APPLICATION INFORMATION Diodes placed in series with the VDD and VSS leads protect the TL145406 during the fault condition in which the device outputs are shorted to ± 15 V and the power supplies are at low. Diodes also provide low-impedance paths to ground (see Figure 15). VDD ± 15 V TL145406 VDD Output TL145406 VSS VSS Figure 15. Power-Supply Protection to Meet Power-Off Fault Conditions of ANSI EIA / TIA-232-E POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 9 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. 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