DS75114 Dual Differential Line Drivers General Description Features The DS75114 dual differential line driver is designed to provide differential output signals with high current capability for driving balanced lines, such as twisted pair at normal line impedances, without high power dissipation. The output stages are similar to TTL totem-pole outputs, but with the sink outputs, YS and ZS, and the corresponding active pullup terminals, YP and ZP, available on adjacent package pins. Since the output stages provide TTL compatible output levels, these devices may also be used as TTL expanders or phase splitters. Y Y Y Y Y Y Y Y Y Y Y Each circuit offers a choice of open-collector or active pull-up (totem-pole) outputs Single 5V supply Differential line operation Dual channels TTL/LS compatibility Designed to be interchangeable with Fairchild 9614 line drivers Short-circuit protection of outputs High current outputs Clamp diodes at inputs and outputs to terminate line transients Single-ended or differential AND/NAND outputs Triple inputs Connection Diagram Dual-In-Line Package TL/F/5786 – 1 Top View Positive logic: Y e ABC Z e ABC Order Number DS75114N See NS Package Number N16A Truth Table Inputs A B H H All Other Input Combinations Outputs C Y Z H H L L H H e high level L e low level C1996 National Semiconductor Corporation TL/F/5786 RRD-B30M36/Printed in U. S. A. http://www.national.com DS75114 Dual Differential Line Drivers February 1996 Absolute Maximum Ratings (Note 1) Lead Temperature ((/16× from case for 4 seconds): N Package If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Supply Voltage (VCC 7V Input Voltage OFF-State Voltage Applied to Open-Collector Outputs Maximum Power Dissipation* at 25§ C 260§ C *Derate cavity package 9.6 mW/§ C above 25§ C; derate molded package 10.9 mW/§ C above 25§ C (Note 2). 5.5V Operating Conditions Min 12V Supply Voltage (VCC) DS75114 High Level Output Current (IOH) Low Level Output Current (IOL) Operating Free-Air Temperature (TA) DS75114 Cavity Package 1433 mW Molded Package 1362 mW Operating Free-Air Temperature Range b 55§ C to a 125§ C DS55114 DS75114 0§ C to a 70§ C b 65§ C to a 150§ C Storage Temperature Range Lead Temperature ((/16× from case for 60 seconds): J Package 300§ C 4.75 Max Units 5.25 40 V mA mA 70 §C b 40 0 Electrical Characteristics Over recommended operating free-air temperature range (unless otherwise noted) DS75114 Symbol Parameter Conditions (Note 3) Min Typ (Note 4) VIH High Level Input Voltage VIL Low Level Input Voltage VIK Input Clamp Voltage VCC e Min, II e b12 mA High Level Output Voltage VCC e Min, VIH e 2V IOH e b10 mA 2.4 3.4 VIL e 0.8V IOH e b40 mA 2 3.0 VOH 2 V b 0.9 Low Level Output Voltage VCC e Min, VIH e 2V, VIL e 0.8V, IOL e 40 mA VOK Output Clamp Voltage VCC e 5V, IO e 40 mA, TA e 25§ C 0.2 VCC e Max, IO e b40 mA, TA e 25§ C OFF-State Open-Collector Output Current VOH e 12V b 1.5 VOH e 5.25V 0.45 6.1 6.5 b 1.1 b 1.5 1 100 Input Current at Maximum Input Voltage VCC e Max, VI e 5.5V IIH High Level Input Current VCC e Max, VI e 2.4V IIL Low Level Input Current VCC e Max, VI e 0.4V IOS Short-Circuit Output Current (Note 5) VCC e Max, VO e 0V ICC Supply Current (Both Drivers) Inputs Grounded, No Load, TA e 25§ C V mA TA e 25§ C 200 1 mA 40 mA b 1.1 b 1.6 mA b 90 b 120 mA VCC e Max 37 50 VCC e 7V 47 70 b 40 Note 1: All voltage values are with respect to network ground terminal. Note 2: For operation above 25§ C free-air temperature, refer to Dissipation Derating Curves in the Thermal information section. Note 3: All parameters, with the exception of OFF-state open-collector output current, are measured with the active pull-up connected to the sink output. Note 4: All typical values are at TA e 25§ C and VCC e 5V, with the exception of ICC at 7V. Note 5: Only one output should be shorted at a time, and duration of the short-circuit should not exceed one second. 2 V TA e 25§ TA e 70§ C II V V TA e 125§ C VCC e Max http://www.national.com Units 0.8 VOL IO(off) Max mA Switching Characteristics VCC e 5V, TA e 25§ C Symbol Parameter DS75114 Conditions Min tPLH Propagation Delay Time, Low-to-High-Level Output tPHL Propagation Delay Time High-to-Low-Level Output CL e 30 pF, (Figure 1) Units Typ Max 15 30 ns 11 30 ns AC Test Circuit and Switching Time Waveforms TL/F/5786 – 3 Note 1: The pulse generator has the following characteristics: ZOUT e 50X, tw e 100 ns, PRR e 500 kHz. Note 2: CL includes probe and jig-capacitance. TL/F/5786 – 4 FIGURE 1. (Notes 1, 2) 3 http://www.national.com Typical Performance Characteristics* Output Voltage vs Data Input Voltage Output Voltage vs Data Input Voltage High Level Output Voltage vs Output Current TL/F/5786 – 5 Low Level Output Voltage vs Output Current Output Voltage vs Free-Air Temperature Propagation Delay Times vs Free-Air Temperature TL/F/5786 – 6 Supply Current (Both Drivers) vs Supply Voltage Supply Current (Both Drivers) vs Free-Air Temperature Supply Current (Both Drivers) vs Frequency TL/F/5786 – 7 *Data for temperatures below 0§ C and above 70§ C and for supply voltages below 4.75V and above 5.25V are applicable to DS55114 circuits only. These parameters were measured with the active pull-up connected to the sink output. http://www.national.com 4 Resistor values shown are typical and in ohms. TL/F/5786 – 2 Schematic Diagram (Each Driver) 5 http://www.national.com DS75114 Dual Differential Line Drivers Physical Dimensions inches (millimeters) Molded Dual-In-Line Package (N) Order Number DS75114N NS Package Number N16A LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. National Semiconductor Corporation 1111 West Bardin Road Arlington, TX 76017 Tel: 1(800) 272-9959 Fax: 1(800) 737-7018 http://www.national.com 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Europe Fax: a49 (0) 180-530 85 86 Email: europe.support @ nsc.com Deutsch Tel: a49 (0) 180-530 85 85 English Tel: a49 (0) 180-532 78 32 Fran3ais Tel: a49 (0) 180-532 93 58 Italiano Tel: a49 (0) 180-534 16 80 National Semiconductor Hong Kong Ltd. 13th Floor, Straight Block, Ocean Centre, 5 Canton Rd. Tsimshatsui, Kowloon Hong Kong Tel: (852) 2737-1600 Fax: (852) 2736-9960 National Semiconductor Japan Ltd. Tel: 81-043-299-2308 Fax: 81-043-299-2408 National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.