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TL145406DWG4 Arkusz danych(PDF) 6 Page - Texas Instruments |
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TL145406DWG4 Arkusz danych(HTML) 6 Page - Texas Instruments |
6 / 18 page TL145406 TRIPLE RS232 DRIVERS/RECEIVERS SLLS185D − DECEMBER 1994 − REVISED JULY 2001 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 RECEIVER SECTION electrical characteristics over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIT+ Positive-going threshold voltage See Figure 5 TA = 25°C 1.75 1.9 2.3 V VIT+ Positive-going threshold voltage See Figure 5 TA = 0°C to 70°C 1.55 2.3 V VIT− Negative-going threshold voltage 0.75 0.97 1.25 V Vhys Input hysteresis (VIT+ − VIT−) 0.5 V VOH High-level output voltage IOH = −0.5 mA VIH = 0.75 V 2.6 4 5 V VOH High-level output voltage IOH = −0.5 mA Inputs open 2.6 V VOL Low-level output voltage IOL = 10 mA, VI = 3 V 0.2 0.45 V IIH High-level input current VI = 25 V, See Figure 5 3.6 8.3 mA IIH High-level input current VI = 3 V, See Figure 5 0.43 mA IIL Low-level input current VI = −25 V, See Figure 5 −3.6 −8.3 mA IIL Low-level input current VI = −3 V, See Figure 5 −0.43 mA IOS Short-circuit output current −3.4 −12 mA † All typical values are at TA = 25°C, VCC = 5, VDD = 9 V, and VSS = −9 V. switching characteristics, VCC = 5 V, VDD = 12 V, VSS = −12 V, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH Propagation delay time, low- to high-level output CL = 50 pF, RL = 5 kΩ, See Figure 6 107 425 ns tPHL Propagation delay time, high- to low-level output CL = 50 pF, RL = 5 kΩ, See Figure 6 42 150 ns tTLH Transition time, low- to high-level output CL = 50 pF, RL = 5 kΩ, See Figure 6 175 400 ns tTHL Transition time, high- to low-level output CL = 50 pF, RL = 5 kΩ, See Figure 6 16 60 ns PARAMETER MEASUREMENT INFORMATION Figure 1. Driver Test Circuit for VOH, VOL, IOS(H), and IOS(L) IOS(L) −IOS(H) VSS VDD VCC VI VO VDD or GND VSS or GND RL = 3 kΩ Figure 2. Driver Test Circuit for IIH and IIL −IIL IIH VSS VDD VCC VI VI |
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Podobny opis - TL145406DWG4 |
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