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SN75ALS170A Datasheet(PDF) 3 Page - Texas Instruments |
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SN75ALS170A Datasheet(HTML) 3 Page - Texas Instruments |
3 / 15 page SN75ALS170, SN75ALS170A TRIPLE DIFFERENTIAL BUS TRANSCEIVER SLLS055D – AUGUST 1987 – REVISED SEPTEMBER 1995 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 schematics of inputs and outputs EQUIVALENT OF EACH INPUT Driver Input: R(eq) = 12 kΩ NOM Enable Inputs: R(eq) = 8 kΩ NOM R(eq) = equivalent resistor TYPICAL OF A AND B I/O PORTS TYPICAL OF RECEIVER OUTPUT 85 Ω NOM Output VCC 1.1 k Ω NOM 3 k Ω NOM A or B 18 k Ω NOM 180 k Ω NOM Connected on A Port VCC R(eq) VCC Input 180 k Ω NOM Connected on B Port absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage range at any bus terminal – 7 V to 12 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Enable input voltage, VI 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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: DW package 260 °C . . . . . . . . . . . . . . . . . . Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J package 300 °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, except differential I/O bus voltage, are with respect to network ground terminal. DISSIPATION RATING TABLE PACKAGE TA ≤ 25°C DERATING FACTOR TA = 70°C PACKAGE A POWER RATING ABOVE TA = 25°C A POWER RATING DW 1125 mW 9.0 mW/ °C 720 mW J 1025 mW 8.2 mW/ °C 656 mW |
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