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SN75185 Datasheet(PDF) 6 Page - Texas Instruments |
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SN75185 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 19 page www.ti.com DRIVER SECTION Switching Characteristics SN75185 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS181D–DECEMBER 1994–REVISED JANUARY 2006 abc Electrical Characteristics over recommended operating free-air temperature range, VDD = 9 V, VSS =–9V,VCC = 5 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOH High-level output voltage VIL = 0.8 V, RL =3kΩ, See Figure 1 6 7.5 V VOL Low-level output voltage(1) VIH = 1.9 V, RL =3kΩ, See Figure 1 –7.5 –6 V IIH High-level input current VI = 5 V, See Figure 2 10 μA IIL Low-level input current VI = 0, See Figure 2 –1.6 mA IOS(H) High-level short-circuit output current(2) VIL = 0.8 V, VO = 0, See Figure 1 –4.5 –12 –19.5 mA IOS(L) Low-level short-circuit output current VIH = 2 V, VO = 0, See Figure 1 4.5 12 19.5 mA ro Output resistance(3) VCC =VDD =VSS =0, VO =–2Vto 2V 300 Ω (1) The algebraic convention, in which the more positive (less negative) limit is designated as maximum, is used in this data sheet for logic levels only (e.g., if –10 V is maximum, the typical value is a more negative voltage). (2) Output short-circuit conditions must maintain the total power dissipation below absolute maximum ratings. (3) Test conditions are those specified by TIA/EIA-232-F and as listed above. VCC = 5 V, VDD =12V,VSS = –12 V, TA =25°C (see Figure 3) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH Propagation delay time, low- to high-level output RL =3kΩ to 7 kΩ,CL = 15 pF 315 500 ns tPHL Propagation delay time, high- to low-level output RL =3kΩ to 7 kΩ,CL =15pF 75 175 ns CL =15pF 60 100 ns tTLH Transition time, low- to high-level output RL =3kΩ to 7 kΩ CL = 2500 pF(1) 1.7 2.5 μs CL = 15 pF 4075ns tTHL Transition time, high- to low-level output RL =3kΩ to 7 kΩ CL = 2500 pF(2) 1.5 2.5 μs (1) Measured between –3-V and 3-V points of the output waveform (TIA/EIA-232-F conditions); all unused inputs are tied either high or low. (2) Measured between 3-V and –3-V points of the output waveform (TIA/EIA-232-F conditions); all unused inputs are tied either high or low. 6 |
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