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ST75185C Scheda tecnica(PDF) 8 Page - STMicroelectronics |
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ST75185C Scheda tecnica(HTML) 8 Page - STMicroelectronics |
8 / 22 page Electrical characteristics ST75185C 8/22 Note: All typical values are at TA = 25 °C, VCC = 5 V, VDD = 9 V and VSS = -9 V Table 10. Receiver electrical characteristics over operating conditions Symbol Parameter Test conditions Value Unit Min. Typ. Max. VT+ Positive going threshold voltage (See Figure 9)2.2 2.4 V VT- Negative going threshold voltage TA = 25 °C (See Figure 9) 0.75 0.97 V Vhys Input hysteresis (VT+ - VT-) 0.5 V VOH High level output voltage IOH = -0.5mA VIH = 0.75 V 2.6 4 5 V Inputs Open 2.6 VOL Low level output voltage VI = 3 V IOL = 10 mA 0.2 0.45 V IIH High level input current VI = 25 V (See Figure 9)3.6 8.3 mA VI = 3 V (See Figure 9)0.43 IIL Low level input current VI = -25 V (See Figure 9) -3.6 -8.3 mA VI = -3 V (See Figure 9) -0.43 IOS Short-circuit output current VI = 0 V VO = 0 V (See Figure 7) -3.4 -12 mA Table 11. Receiver switching characteristics (VDD = 12 V, VSS = -12 V, VCC = 5 V TA = 25 °C) Symbol Parameter Test Conditions Value Unit Min. Typ. Max. tPLH Propagation delay time low to high level output RL = 5 kΩ CL = 50 pF (See Figure 9) 400 1000 ns tPHL Propagation delay time high to low level output RL = 5 kΩ CL = 50 pF (See Figure 9) 70 150 ns tTLH Transition time low to high level output RL = 5 kΩ CL = 50 pF (See Figure 9) 200 525 ns tTHL Transition time high to low level output RL = 5 kΩ CL = 50 pF (See Figure 9) 20 60 ns |
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