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| SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162B - JULY 1993 - REVISED JUNE 2000 D D D D D D D Meets or Exceeds the Standard EIA-485 Designed for High-Speed Multipoint Transmission on Long Bus Lines in Noisy Environments Supports Data Rates up to and Exceeding Ten Million Transfers Per Second Common-Mode Output Voltage Range of - 7 V to 12 V Positive- and Negative-Current Limiting Low Power Consumption . . . 1.5 mA Max (Output Disabled) Functionally Interchangeable With SN75174 N PACKAGE (TOP VIEW) 1A 1Y 1Z 1,2EN 2Z 2Y 2A GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC 4A 4Y 4Z 3,4EN 3Z 3Y 3A DW PACKAGE (TOP VIEW) description The SN65LBC174 and SN75LBC174 are monolithic, quadruple, differential line drivers with 3-state outputs. Both devices are designed to meet the requirements of the Electronics Industry Association Standard EIA-485. These devices are optimized for balanced multipoint bus transmission at data rates up to and exceeding 10 million bits per second. Each driver features wide positive and negative common-mode output voltage ranges, current limiting, and thermalshutdown protection, making it suitable for party-line applications in noisy environments. Both devices are designed using LinBiCMOSTM, facilitating ultralow power consumption and inherent robustness. Both the SN65LBC174 and SN75LBC174 provide positive- and negative-current limiting and thermal shutdown for protection from line fault conditions on the transmission bus line. These devices offer optimum performance when used with the SN75LBC173 or SN75LBC175 quadruple line receivers. The SN65LBC174 and SN75LBC174 are available in the 16-terminal DIP package (N) and the 20-terminal wide-body small outline intergrated circuit (SOIC) package (DW). 1A 1Y NC 1Z 1,2EN 2Z NC 2Y 2A GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VCC 4A 4Y NC 4Z 3,4EN 3Z NC 3Y 3A NC - No internal connection FUNCTION TABLE (each driver) INPUT H L X H = high level, X = irrelevant, ENABLE H H L OUTPUTS Y H L Z Z L H Z L = low level, Z = high impedance (off) The SN75LBC174 is characterized for operation over the commercial temperature range of 0C to 70C. The SN65LBC174 is characterized over the industrial temperature range of - 40C to 85C. 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. LinBiCMOS is a trademark of 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. Copyright (c) 2000, Texas Instruments Incorporated POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 1 SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162B - JULY 1993 - REVISED JUNE 2000 logic symbol 1, 2EN 4 EN 2 3 6 5 1Y 1Z 2Y 2Z logic diagram (positive logic) 1 1A 4 1, 2EN 7 2A 6 5 2Y 2Z 2 3 1Y 1Z 1A 1 2A 7 3, 4EN 12 EN 10 11 14 13 3Y 3Z 4Y 4Z 9 3A 12 3,4EN 15 4A 10 11 3Y 3Z 3A 9 14 13 4Y 4Z 4A 15 This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Terminal numbers shown are for the N package. schematic of inputs and outputs ALL INPUTS VCC 50 A VCC Y OR Z OUTPUT 200 Input Driver Output 2 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162B - JULY 1993 - REVISED JUNE 2000 absolute maximum ratings over operating free-air temperature (unless otherwise noted) Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to 7 V Output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 10 V to 15 V Voltage range at A, 1/2EN, 3/4EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to VCC +0.5 V Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited Operating free-air temperature range, TA: SN65LBC174 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 40C to 85C SN75LBC174 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to 70C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to 150C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260C 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. The maximum operating junction temperature is internally limited. Use the Dissipation Rating Table to operate below this temperature. NOTE 1: All voltage values are with respect to GND. recommended operating conditions MIN Supply voltage, VCC High-level input voltage, VIH Low-level input voltage, VIL Voltage at any bus terminal (separately or common-mode), VO common mode) High-level output current, IOH Low-level output current, IOL Continuous total power dissipation Operating free-air temperature, TA free air temperature SN65LBC174 SN75LBC174 DISSIPATION RATING TABLE PACKAGE DW N TA 25C POWER RATING 1125 mW 1150 mW DERATING FACTOR ABOVE TA = 25C 9.0 mW/C 9.2 mW/C TA = 70C POWER RATING 720 mW 736 mW TA = 85C POWER RATING 585 mW 598 mW Y or Z Y or Z Y or Z - 40 0 4.75 2 0.8 12 -7 - 60 60 85 70 NOM 5 MAX 5.25 UNIT V V V V mA mA See Dissipation Rating Table C POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 3 SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162B - JULY 1993 - REVISED JUNE 2000 electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER VIK Input clamp voltage TEST CONDITIONS II = - 18 mA RL = 54 , , See Figure 1 RL = 60 , , See Figure 2 SN65LBC174 SN75LBC174 SN65LBC174 SN75LBC174 1.1 1.5 1.1 1.5 1.8 1.8 1.7 1.7 MIN TYP MAX - 1.5 5 5 5 5 0.2 RL = 54 , See Figure 1 3 -1 0.2 VCC = 0, VO = - 7 V to 12 V VO = - 7 V to 12 V VI = 2.4 V VI = 0.4 V VO = - 7 V to 12 V Outputs enabled No load Outputs disabled 100 100 - 100 - 100 250 7 1.5 V V V A A A A mA mA V UNIT V |VOD| Differential output voltage |VOD| VOC |VOC| IO IOZ IIH IIL IOS ICC Change in magnitude of common-mode output voltage Common-mode Common mode output voltage Change in magnitude of common-mode output voltage Output current with power off High-impedance-state output current High-level input current Low-level input current Short-circuit output current Supply current (all drivers) All typical values are at VCC = 5 V and TA = 25C. The minimum VOD specification does not fully comply with EIA-485 at operating temperatures below 0C. The lower output signal should be used to determine the maximum signal transmission distance. |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. switching characteristics, VCC = 5 V, TA = 25C PARAMETER td(OD) tt(OD) tPZH tPZL tPHZ tPLZ Differential output delay time Differential output transition time Output enable time to high level Output enable time to low level Output disable time from high level Output disable time from low level TEST CONDITIONS RL = 54 , RL = 110 , RL = 110 , RL = 110 , RL = 110 , See Figure 3 See Figure 3 See Figure 5 See Figure 4 See Figure 5 MIN 2 10 TYP 11 15 MAX 20 25 30 30 50 30 UNIT ns ns ns ns ns ns 4 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162B - JULY 1993 - REVISED JUNE 2000 PARAMETER MEASUREMENT INFORMATION RL 2 RL 2 VOC VOD2 Figure 1. Differential and Common-Mode Output Voltages Vtest R1 = 375 Y A RL = 60 0 V or 3 V VOD Z EN at 5 V R2 = 375 Vtest - 7 V < Vtest < 12 V Figure 2. Driver VOD Test Circuit 3V Input Input Generator (see Note A) 50 RL = 54 CL = 50 pF (see Note B) Output td(OD) 50% 90% 10% 3V TEST CIRCUIT tt(OD) VOLTAGE WAVEFORMS 1.5 V 1.5 V 0V td(OD) 2.5 V 50% - 2.5 V tt(OD) Output NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR 1 MHz, duty cycle = 50%, tr 5 ns, tf 5 ns, ZO = 50 . B. CL includes probe and stray capacitance. Figure 3. Time Waveforms for Driver Differential Output Test Circuit Delay and Transition POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 5 SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162B - JULY 1993 - REVISED JUNE 2000 PARAMETER MEASUREMENT INFORMATION S1 3 V or 0 V Input Generator (see Note A) 50 CL = 50 pF (see Note B) Output RL = 110 tPZH Output 2.3 V tPHZ VOLTAGE WAVEFORMS Voff 0 V Input 1.5 V 1.5 V 0V 0.5 V VOH 3V TEST CIRCUIT Figure 4. tPZH and tPHZ Test Circuit and Waveforms 5V 3V RL = 110 S1 0 V or 3 V Input Generator (see Note A) 50 VOLTAGE WAVEFORMS TEST CIRCUIT NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR 1 MHz, duty cycle = 50%, tr 5 ns, tf 5 ns, ZO = 50 . B. CL includes probe and stray capacitance. CL = 50 pF (see Note B) Output Input tPZL tPLZ Output 2.3 V 5V 0.5 V VOL 1.5 V 1.5 V 0V Figure 5. tPZL and tPLZ Test Circuit and Waveforms 6 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162B - JULY 1993 - REVISED JUNE 2000 TYPICAL CHARACTERISTICS OUTPUT CURRENT vs OUTPUT VOLTAGE 50 VOL - Low-Level Output Voltage - V 40 IIO - Output Current - A O 30 20 10 0 - 10 - 20 - 30 VCC = 5 V - 40 - 50 - 25 - 20 - 15 - 10 - 5 0 5 10 15 20 25 VCC = 0 V Output Disabled TA = 25C 5 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 - 20 0 20 40 100 60 80 IOL - Low-Level Output Current - mA 120 VCC = 5 V TA = 25C LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT VOD - Differential Output Voltage - V 2.5 VOH - High-Level Output Voltage - V AA AA AA AA AA VO - Output Voltage - V Figure 6 DIFFERENTIAL OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE 3 RL = 54 VCC = 5 V 5 4.5 4 3.5 3 2.5 2 1.5 - 40 - 20 0 20 40 60 80 100 20 0 Figure 7 HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT VCC = 5 V TA = 25C 2 1.5 1 0.5 0 - 60 - 20 - 40 - 60 - 80 - 100 - 120 TA - Free-Air Temperature - C IOH - High-Level Output Current - mA Figure 8 Figure 9 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 7 SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162B - JULY 1993 - REVISED JUNE 2000 TYPICAL CHARACTERISTICS PROPAGATION DELAY TIME, DIFFERENTIAL OUTPUT vs FREE-AIR TEMPERATURE 14 VCC = 5 V TA = 25C t pd(OD) - Propagation Delay Time, Differential Output - ns 2.5 13 12 11 10 9 8 7 6 5 0 0 10 20 30 40 50 60 70 80 90 100 IO - Output Current - mA 4 - 60 - 40 - 20 0 20 40 60 80 100 TA - Free-Air Temperature - C RL = 54 CL = 50 pF VCC = 5 V DIFFERENTIAL OUTPUT VOLTAGE vs OUTPUT CURRENT 3 VOD - Differential Output Voltage - V 2 1.5 1 0.5 Figure 10 Figure 11 8 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162B - JULY 1993 - REVISED JUNE 2000 MECHANICAL DATA DW (R-PDSO-G**) 16 PIN SHOWN 0.050 (1,27) 16 0.020 (0,51) 0.014 (0,35) 9 PLASTIC SMALL-OUTLINE PACKAGE 0.010 (0,25) M 0.419 (10,65) 0.400 (10,15) 0.299 (7,59) 0.293 (7,45) 0.010 (0,25) NOM Gage Plane 0.010 (0,25) 1 A 8 0- 8 0.050 (1,27) 0.016 (0,40) Seating Plane 0.104 (2,65) MAX 0.012 (0,30) 0.004 (0,10) PINS ** DIM A MAX 0.004 (0,10) 16 0.410 (10,41) 0.400 (10,16) 20 0.510 (12,95) 0.500 (12,70) 24 0.610 (15,49) 0.600 (15,24) 4040000 / D 02/98 A MIN NOTES: A. B. C. D. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0.006 (0,15). Falls within JEDEC MS-013 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 9 SN65LBC174, SN75LBC174 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVERS SLLS162B - JULY 1993 - REVISED JUNE 2000 MECHANICAL DATA N (R-PDIP-T**) 16 PIN SHOWN PINS ** DIM A 16 9 A MAX PLASTIC DUAL-IN-LINE PACKAGE 14 0.775 (19,69) 0.745 (18,92) 16 0.775 (19,69) 0.745 (18,92) 18 0.920 (23.37) 0.850 (21.59) 20 0.975 (24,77) 0.940 (23,88) A MIN 0.260 (6,60) 0.240 (6,10) 1 8 0.070 (1,78) MAX 0.035 (0,89) MAX 0.020 (0,51) MIN 0.310 (7,87) 0.290 (7,37) 0.200 (5,08) MAX Seating Plane 0.125 (3,18) MIN 0.100 (2,54) 0.021 (0,53) 0.015 (0,38) 0- 15 0.010 (0,25) NOM 0.010 (0,25) M 14/18 PIN ONLY 4040049/C 08/95 NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. Falls within JEDEC MS-001 (20 pin package is shorter then MS-001.) 10 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 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 acknowledgment, 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. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. Customers are responsible for their applications using TI components. In order to minimize risks associated with the customer's applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. 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 of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI's publication of information regarding any third party's products or services does not constitute TI's approval, warranty or endorsement thereof. Copyright (c) 2000, Texas Instruments Incorporated |
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