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SN75LPE185NT Datasheet(PDF) 7 Page - Texas Instruments |
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SN75LPE185NT Datasheet(HTML) 7 Page - Texas Instruments |
7 / 18 page SN75LPE185 LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE SLLS256F – DECEMBER 1996 – REVISED NOVEMBER 2001 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 receiver electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIT+ Positive-going input threshold voltage See Figure 3 1.6 2 2.55 V VIT– Negative-going input threshold voltage See Figure 3 0.6 1 1.45 V VHYS Input hysteresis, VIT+ – VIT– See Figure 3 600 1100 mV VOH High-level output voltage IOH = –1 mA 2.5 3.9 V VOL Low-level output voltage IOL = 2 mA 0.33 0.5 V IIH High level input current VI = 3 V 0.43 0.6 1 mA IIH High-level input current VI = 25 V 3.6 5.1 8.3 mA IIL Low level input current VI = –3 V –0.43 –0.6 –1 mA IIL Low-level input current VI = –25 V –3.6 –5.1 –8.3 mA IOS(H) Short-circuit high-level output current VO = 0, See Figure 5 and Note 8 –20 mA IOS(L) Short-circuit low-level output current VO = VCC, See Figure 5 and Note 8 20 mA IOZ High-impedance output current VCC= 0 or 5 V, 0.3 V ≤ VO ≤ VCC ±100 µA RIN Input resistance VI = ±3 V to ±25 V 3 5 7 k Ω NOTE 8: Not more than one output should be shorted at one time. receiver switching characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS 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| STANDBY mode 200 425 ns tPZL Receiver output-enable time to low-level output STANDBY mode CL = 50 pF, SFi d 50 100 µs tPZH Receiver output-enable time to high-level output See Figures 4 and 7 50 100 µs tPLZ Receiver output-disable time from low-level output 50 100 µs tPHZ Receiver output-disable time from high-level output 50 100 µs tPHL Propagation delay time, high- to low-level output (WAKE-UP mode) 500 1500 ns tPLH Propagation delay time, low- to high-level output (WAKE-UP mode) 500 1500 ns |
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