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SN75LP1185DWE4 Datasheet(PDF) 6 Page - Texas Instruments |
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SN75LP1185DWE4 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 13 page SN75LP1185 LOW-POWER MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS335A – JANUARY 1999 – REVISED JANUARY 2001 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 receiver switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 4) PARAMETER MIN TYP MAX UNIT tPHL Propagation delay time, high- to low-level output 400 900 ns tPLH Propagation delay time, low- to high-level output 400 900 ns tTLH Transition time, low- to high-level output 200 500 ns tTHL Transition time, high- to low-level output 200 400 ns tSK(p) Pulse skew |tPLH – tPHL| 200 425 ns 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 and tf < 50 ns. For CL = 2500 pF: tw = 8 µs, PRR = 125 kbit/s, ZO = 50 Ω, tr and 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 |
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