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SN75LPE185PWR Datasheet(PDF) 8 Page - Texas Instruments |
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SN75LPE185PWR Datasheet(HTML) 8 Page - Texas Instruments |
8 / 18 page SN75LPE185 LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE SLLS256F – DECEMBER 1996 – REVISED NOVEMBER 2001 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION IO II RL CL VI VO Inputs Outputs tPLH tPHL tTLH tTHL 3 V 0 V VOH VOL VI VO 50% 50% 50% 50% VTR+ VTR+ VTR– VTR– tw NOTES: A. The pulse generator has the following characteristics: For CL < 1000 pF: tw = 4 µs, PRR = 250 kbit/s, ZO = 50 Ω, tr = tf < 50 ns. For CL = 2500 pF: tw = 8 µs, PRR = 125 kbit/s, ZO = 50 Ω, tr = tf < 50 ns. B. CL includes probe and jig capacitance. Figure 1. Driver Parameter Test Circuit and Waveform IO II VI VO Inputs Outputs VDD VCC GND VSS Figure 2. Driver IOS Test IO II VI VO Inputs Outputs Figure 3. Receiver VIT Test IO II CL VI VO Inputs Outputs tPLH tPHL tTLH tTHL VIH VIL VOH VOL VI VO 50% 50% 50% 50% 90% 90% 10% 10% tw NOTES: A. The pulse generator has the following characteristics: tw = 4 µs, PRR = 250 kbit/s, ZO = 50 Ω, tr = tf < 50 ns. B. CL includes probe and jig capacitance. Figure 4. Receiver Parameter Test Circuit and Waveform |
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