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SN752232DL Datasheet(PDF) 5 Page - Texas Instruments |
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SN752232DL Datasheet(HTML) 5 Page - Texas Instruments |
5 / 14 page SN752232 DUAL RS-232 PORT SLLS507 – JUNE 2001 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics, VCC = 5 V, VDD = 12 V, 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 = 3 kΩ to 7 kΩ, CL = 15 pF 315 500 ns tPHL Propagation delay time, high- to low-level output RL = 3 kΩ to 7 kΩ, CL = 15 pF 75 175 ns tTLH Transition time low to high level output RL =3kΩ to7kΩ CL = 15 pF 60 100 ns tTLH Transition time, low- to high-level output RL = 3 kΩ to 7 kΩ CL = 2500 pF, See Note 6 1.7 2.5 µs tTHL Transition time high to low level output RL =3kΩ to7kΩ CL = 15 pF 40 75 ns tTHL Transition time, high- to low-level output RL = 3 kΩ to 7 kΩ CL = 2500 pF, See Note 6 1.5 2.5 µs NOTE 6: 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. RECEIVER SECTION electrical characteristics over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIT Positive going input threshold voltage TA = 25°C See Figure 5 1.75 1.9 2.3 V VIT+ Positive-going input threshold voltage TA = 0°C to 70 °C See Figure 5 1.55 2.3 V VIT– Negative-going input threshold voltage 0.75 0.97 1.25 V Vhys Input hysteresis voltage (VIT+ – VIT–) 0.5 V VOH High level output voltage IOH = 05 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 input 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 8.8 mA IIH High-level input current VI = 3 V, See Figure 5 0.43 mA IIL Low level output current VI = –25 V, See Figure 5 –3.6 –8.8 mA IIL Low-level output current VI = –3 V, See Figure 5 –0.43 mA IOS Short-circuit output current See Figure 4 –3.4 –12 mA † All typical values are at TA = 25°C, VCC = 5 V, VDD = 9 V, and VSS = –9 V. switching characteristics, VCC = 5 V, VDD = 12 V, VSS = –12 V, TA = 25°C (see Figure 6) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH Propagation delay time, low- to high-level output 107 250 ns tPHL Propagation delay time, high- to low-level output CL =50 pF RL =5kΩ 42 150 ns tTLH Transition time, low- to high-level output CL = 50 pF, RL = 5 kΩ 175 350 ns tTHL Transition time, high- to low-level output 16 60 ns tPLH Propagation delay time, low- to high-level output 100 160 ns tPHL Propagation delay time, high- to low-level output CL =15 pF RL =15kΩ 60 100 ns tTLH Transition time, low- to high-level output CL = 15 pF, RL = 1.5 kΩ 90 175 ns tTHL Transition time, high- to low-level output 15 50 ns |
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