DS96F172M,DS96F174C,DS96F174M DS96F172M/DS96F174C/DS96F174M EIA-485/EIA-422 Quad Differential Drivers Literature Number: SNOSC39E September 22, 2011 EIA-485/EIA-422 Quad Differential Drivers General Description Features The DS96F172 and the DS96F174 are high speed quad differential line drivers designed to meet EIA-485 Standards. The DS96F172 and the DS96F174 offer improved performance due to the use of L-FAST bipolar technology. The use of LFAST technology allows the DS96F172 and DS96F174 to operate at higher speeds while minimizing power consumption. The DS96F172 and the DS96F174 have TRI-STATE(R) outputs and are optimized for balanced multipoint data bus transmission at rates up to 15 Mbps. The drivers have wide positive and negative common mode range for multipoint applications in noisy environments. Positive and negative current-limiting is provided which protects the drivers from line fault conditions over a +12V to -7.0V common mode range. A thermal shutdown feature is also provided. The DS96F172 features an active high and active low Enable, common to all four drivers. The DS96F174 features separate active high Enables for each driver pair. Logic Diagrams Function Tables Meets EIA-485 and EIA-422 standards Monotonic differential output switching TRI-STATE outputs Designed for multipoint bus transmission Common mode output voltage range: -7.0V to +12V Operates from single +5.0V supply Reduced power consumption Thermal shutdown protection DS96F172 and DS96F174 are lead and function compatible with the SN75172/174 or the AM26LS31/ MC3487 Military temperature range available Qualified for MIL-STD-883C Standard military drawings available (SMD) Available in DIP (J), LCC (E), and Flatpak (W) packages DS96F172 DS96F172 (Each Driver) Input 962514 Enable Outputs A E E Y H H X H L L H X L H H X L H L L X L L H X L H Z Z DS96F174 Z DS96F174 962515 Input Enable A E Y Outputs H H H L L H L H X L Z Z Z H = High Level L = Low Level X = Don't Care Z = High Impedance (Off) TRI-STATE(R) is a registered trademark of National Semiconductor Corporation. (c) 2011 National Semiconductor Corporation 9625 9625 Version 11 Revision 5 www.national.com Print Date/Time: 2011/09/22 08:31:42 DS96F172M/DS96F174C/DS96F174M EIA-485/EIA-422 Quad Differential Drivers OBSOLETE DS96F172M/DS96F174C/ DS96F174M DS96F172M/DS96F174C/DS96F174M Absolute Maximum Ratings COMMERCIAL (Note 2) Recommended Operating Conditions Specifications for the 883 version of this product are listed separately on the following pages. Min Supply Voltage (VCC) DS96F174C 4.75 Common Mode -7.0 Output Voltage (VOC) Output Current HIGH (IOH) Output Current LOW (IOL) Operating Temperature (TA) DS96F174C 0 Storage Temperature Range (TSTG) -65C to +175C Lead Temperature (Soldering, 60 sec.) 300C Maximum Package Power Dissipation (Note 1) at 25C Ceramic DIP (J) 1500 mW Supply Voltage 7.0V Enable Input Voltage 5.5V Typ Max Units 5.0 5.25 +12.0 V V -60 60 mA mA +70 C Note 1: Derate "J" package 10 mW/C above 25C. Electrical Characteristics (Note 3, Note 4) Over recommended supply voltage and operating temperature range, unless otherwise specified Symbol Parameter VIH Input Voltage HIGH VIL Input Voltage LOW Conditions Min Typ (Note 2) Max Units 2.0 V TA = 0C to +70C 0.8 TA = -55C to +125C 0.7 VOH Output Voltage HIGH IOH = -33 mA TA = 0C to +70C VOL Output Voltage LOW IOL = 33 mA TA = 0C to +70C VIC Input Clamp Voltage II = -18 mA |VOD1| Differential Output Voltage IO = 0 mA |VOD2| Differential Output Voltage RL = 54, Figure 1 TA = -55C 3.0 1.2 1.5 RL = 100, Figure 1 2.0 V V 2.0 V -1.5 V 6.0 V 2.0 V 2.3 VOD Differential Output Voltage Figure 2 TA = 0C to +70C 1.0 V |VOD| Change in Magnitude of Differential RL = 54 or 100, -40C to +125C 0.2 Output Voltage (Note 5) Figure 1 -55C to +125C 0.4 VOC Common Mode Output Voltage (Note 6) RL = 54 or 100, Figure 1 3.0 V |VOC| Change in Magnitude of Common RL = 54 or 100, Figure 1 0.2 V 50 A 50 A V Mode Output Voltage (Note 5) IO Output Current with Power Off VCC = 0V, VO = -7.0V to +12V IOZ High Impedance State Output Current VO = -7.0V to +12V IIH Input Current HIGH VI = 2.4V 20 A IIL Input Current LOW VI = 0.4V -50 A IOS Short Circuit Output Current VO = -7.0V -250 (Note 7) VO = 0V -150 VO = VCC 150 VO = +12V 250 ICC Supply Current (All Drivers) No Load ICCX www.national.com 20 Outputs Enabled 50 Outputs Disabled 30 2 9625 Version 11 Revision 5 Print Date/Time: 2011/09/22 08:31:42 mA mA Switching Characteristics VCC = 5.0V, TA = 25C Symbol Parameter tDD Differential Output Delay Time tTD Differential Output Transition Time tPLH Propagation Delay Time, Conditions Min RL = 60, Figure 3 RL = 27, Figure 4 Typ Max Units 15 20 ns 15 22 ns 12 16 ns 12 16 ns Low-to-High Level Output tPHL Propagation Delay Time, High-to-Low Level Output tZH Output Enable Time to High Level RL = 110, FIgure 4 25 32 ns tZL Output Enable Time to Low Level RL = 110, Figure 6 25 32 ns tHZ Output Disable Time from High Level RL = 110, Figure 5 25 30 ns tLZ Output Disable Time from Low Level RL = 110, Figure 6 20 25 ns tLZL Output Disable Time from Low Level Figure 6 300 RL = 60 1.0 ns with Load Resistor to GND (Note 8) tSKEW Driver Output to Output 4.0 ns Note 2: "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The tables of "Electrical Characteristics" provide conditions for actual device operation. Note 3: Unless otherwise specified min/max limits apply across the 0C to +70C range for the DS96F174C. All typicals are given for VCC = 5V and TA = 25C. Note 4: All currents into the device pins are positive; all currents out of the device pins are negative. All voltages are reference to ground unless otherwise specified. Note 5: |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. Note 6: In EIA-422A and EIA-485 standards, VOC, which is the average of the two output voltages with respect to ground, is called output offset voltage, VOS. Note 7: Only one output at a time should be shorted. Note 8: For more information see Application Bulletin, contact Product Marketing. Order Number: DS96F174CJ DS96F174CN NS Package Number J16A or N16E 3 9625 Version 11 Revision 5 Print Date/Time: 2011/09/22 08:31:42 www.national.com DS96F172M/DS96F174C/DS96F174M COMMERCIAL DS96F172M/DS96F174C/DS96F174M Absolute Maximum Ratings MIL-STD-883C (Note 2) Recommended Operating Conditions For complete Military Specifications, refer to the appropriate SMD or MDS. Supply Voltage (VCC) DS96F172M/DS96F174M Common Mode Output Voltage (VOC) Output Current HIGH (IOH) Output Current LOW (IOL) Operating Temperature (TA) DS96F172M/DS96F174M Storage Temperature Range (TSTG) -65C to +175C Lead Temperature (Soldering, 60 sec.) 300C Maximum Package Power Dissipation (Note 9) at 25C Ceramic LCC (E) 2000 mW Ceramic DIP (J) 1800 mW Ceramic Flatpak (W) 1000 mW Supply Voltage 7.0V Enable Input Voltage 5.5V Electrical Characteristics Min Typ Max Units 4.50 -7.0 5.50 +12.0 V V -60 60 mA mA 5.0 -55 +125 Note 9: Above TA = 25C, derate "E" package 13.4, "J" package 12.5, "W" package 7.1 mW/C (Note 3, Note 4) Over recommended supply voltage and operating temperature range unless otherwise specified Symbol Parameter VIH Input Voltage HIGH VIL Input Voltage LOW Conditions Max 2.0 VIC Input Clamp Voltage II = -18 mA |VOD1| Differential Output Voltage IO = 0 mA |VOD2| Differential Output Voltage 0.8 TA = -55C, or +125C 0.7 RL = 54, VCC = 4.5V TA = -55C 1.2 Figure 1 TA = 25C, or +125C 1.5 Change in Magnitude of Differential Units V TA = 25C RL = 100, VCC = 4.5V, Figure 1 |VOD| Min V -1.5 V 6.0 V V 2.0 RL = 54 or 100, TA = 25C, or +125C 0.2 V TA = -55C 0.4 V V Output Voltage (Note 5) VCC = 4.5V, Figure 1 VOC Common Mode Output Voltage (Note 6) RL = 54 or 100, Figure 1 3.0 |VOC| Change in Magnitude of Common RL = 54 or 100, VCC = 4.5V, Figure 1 0.2 V Mode Output Voltage (Note 5) IO Output Current with Power Off VCC = 0V, VO = -7.0V to +12V 50 A IOZ High Impedance State Output Current VO = -7.0V to +12V 50 A IIH Input Current HIGH VI = 2.4V 20 A IIL Input Current LOW VI = 0.4V -50 A IOS Short Circuit Output Current VO = -7.0V -250 (Note 7) VO = 0V -150 VO = VCC 150 VO = +12V 250 ICC Supply Current (All Drivers) No Load ICCX www.national.com Outputs Enabled 50 Outputs Disabled 30 4 9625 Version 11 Revision 5 Print Date/Time: 2011/09/22 08:31:42 mA mA Switching Characteristics VCC = 5.0V Symbol Parameter Conditions TA = 25C TA = 55C TA = 125C Units Typ Max Max Max tDD Differential Output Delay Time RL = 60, CL = 15 pF, 15 22 30 30 ns tTD Differential Output Transition Time Figure 3 15 22 40 40 ns tPLH Propagation Delay Time, RL = 27, CL = 15 pF, 12 16 25 25 ns Low-to-High Level Output Figure 4 12 16 25 25 ns tPHL Propagation Delay Time, High-to-Low Level Output tZH Output Enable Time to High Level RL = 110, Figure 5 25 32 40 40 ns tZL Output Enable Time to Low Level RL = 110, Figure 6 25 35 100 100 ns tHZ Output Disable Time from High Level RL = 110, Figure 5, 25 30 80 80 ns tLZ Output Disable Time from Low Level RL = 110, Figure 6 20 25 40 40 ns tLZL Output Disable Time from Low Level Figure 6 300 RL = 60 1.0 Note 13 ns with Load Resistor to GND (Note 12) tSKEW Driver Output to Output SMD Numbers: DS96F172MJ/883 DS96F174MJ/883 5962-9076501MEA 5962-9076502MEA 4.0 10 10 ns DS96F172ME/883, DS96F174ME/883 NS Package Number E20A DS96F172MW-MIL, DS96F174MW/883 NS Package Number W16A DS96F172ME/883 5962-9076501M2A DS96F174MW/883 5962-9076502MFA DS96F174ME/883 5962-9076502M2A For Complete Military Product Specifications, refer to the appropriate SMD or MDS. Order Number: DS96F172MJ/883, DS96F174MJ/883 NS Package Number J16A Parameter Measurement Information 962513 962503 FIGURE 2. Differential Output Voltage with Varying Common Mode Voltage FIGURE 1. Differential and Common Mode Output Voltage 962504 962505 FIGURE 3. Differential Output Delay and Transition Times 5 9625 Version 11 Revision 5 Print Date/Time: 2011/09/22 08:31:42 www.national.com DS96F172M/DS96F174C/DS96F174M MIL-STD-883C DS96F172M/DS96F174C/DS96F174M 962506 962507 FIGURE 4. Propagation Delay Times 962509 962508 FIGURE 5. tZH and tHZ 962511 962510 FIGURE 6. tZL, tLZ, tLZL Note 10: The input pulse is supplied by a generator having the following characteristics: f = 1.0 MHz, duty cycle = 50%, tr 5.0 ns, tf 5.0 ns, ZO = 50. Note 11: CL includes probe and jig capacitance. Note 12: DS96F172 with active high and active low Enables is shown. DS96F174 has active high Enable only. Note 13: To test the active low Enable E of DS96F172 ground E and apply an inverted waveform to E . DS96F174 has active high Enable only. Note 14: For more information see Application Bulletin, Contact Product Marketing. Note 15: Not tested for DS96F172MW-MIL device. www.national.com 6 9625 Version 11 Revision 5 Print Date/Time: 2011/09/22 08:31:42 DS96F172M/DS96F174C/DS96F174M Typical Application 962512 The line length should be terminated at both ends in its characteristic impedance. Stub lengths off the main line should be kept as short as possible. Connection Diagrams 16-Lead Ceramic Dual-In-Line Package NS Package Number J16A DS96F172 DS96F174 962501 962502 Top View Top View 20-Lead Ceramic Leadless Chip Carrier NS Package Number E20A 962518 962519 NC = No connection Top View Top View 7 9625 Version 11 Revision 5 Print Date/Time: 2011/09/22 08:31:42 www.national.com DS96F172M/DS96F174C/DS96F174M 16-Lead Ceramic Flatpak NS Package Number W16A 962501 962502 Top View Top View Order Numbers are located at the end of the respective Electrical Tables. www.national.com 8 9625 Version 11 Revision 5 Print Date/Time: 2011/09/22 08:31:42 DS96F172M/DS96F174C/DS96F174M Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Ceramic Leadless Chip Carrier (E) Order Number DS96F172ME/883, DS96F174ME/883 NS Package Number E20A 9 9625 Version 11 Revision 5 Print Date/Time: 2011/09/22 08:31:42 www.national.com DS96F172M/DS96F174C/DS96F174M 16-Lead Ceramic Dual-In-Line Package (J) Order Number DS96F172MJ/883, DS96F174CJ, DS96F174MJ/883 NS Package Number J16A 16-Lead Ceramic Flatpack (W) Order Number DS96F172MW/883, DS96F174MW/883 NS Package Number W16A www.national.com 10 9625 Version 11 Revision 5 Print Date/Time: 2011/09/22 08:31:42 DS96F172M/DS96F174C/DS96F174M Molded Dual-In-Line Package (N) Order Number DS96F174CN NS Package Number N16E 11 9625 Version 11 Revision 5 Print Date/Time: 2011/09/22 08:31:42 www.national.com DS96F172M/DS96F174C/DS96F174M EIA-485/EIA-422 Quad Differential Drivers Notes For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Design Support Amplifiers www.national.com/amplifiers WEBENCH(R) Tools www.national.com/webench Audio www.national.com/audio App Notes www.national.com/appnotes Clock and Timing www.national.com/timing Reference Designs www.national.com/refdesigns Data Converters www.national.com/adc Samples www.national.com/samples Interface www.national.com/interface Eval Boards www.national.com/evalboards LVDS www.national.com/lvds Packaging www.national.com/packaging Power Management www.national.com/power Green Compliance www.national.com/quality/green Switching Regulators www.national.com/switchers Distributors www.national.com/contacts LDOs www.national.com/ldo Quality and Reliability www.national.com/quality LED Lighting www.national.com/led Feedback/Support www.national.com/feedback Voltage References www.national.com/vref Design Made Easy www.national.com/easy www.national.com/powerwise Applications & Markets www.national.com/solutions Mil/Aero www.national.com/milaero PowerWise(R) Solutions Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors SolarMagicTM www.national.com/solarmagic PLL/VCO www.national.com/wireless www.national.com/training PowerWise(R) Design University THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION ("NATIONAL") PRODUCTS. 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