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TL145406 Datasheet(PDF) 7 Page - Texas Instruments |
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TL145406 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 18 page TL145406 TRIPLE RS232 DRIVERS/RECEIVERS SLLS185D − DECEMBER 1994 − REVISED JULY 2001 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION Pulse Generator (see Note B) CL (see Note A) RL 3 V 0 Input tPHL tPLH 90% 50% 10% 50% 10% 90% tTHL tTLH VOH VOL TEST CIRCUIT VOLTAGE WAVEFORMS Input Output VSS VCC VDD NOTES: A. CL includes probe and jig capacitance. B. The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHz, ZO = 50 Ω, tr = tf < 50 ns. 1.5 V 1.5 V Figure 3. Driver Test Circuit and Voltage Waveforms Figure 4. Receiver Test Circuit for IOS VI VDD VCC VSS −IOS Figure 5. Receiver Test Circuit for VIT, VOH, and VOL VIT, VI VDD VCC VSS IOL VOH −IOH VOL TEST CIRCUIT NOTES: A. CL includes probe and jig capacitance. B. The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHz, ZO = 50 Ω, tr = tf < 50 ns. Pulse Generator (see Note B) CL (see Note A) RL Input VSS VCC VDD VOLTAGE WAVEFORMS 4 V 0 Input tPHL tPLH 90% 50% 10% 50% 10% 90% tTHL tTLH VOH VOL Output 50% 50% Figure 6. Receiver Propagation and Transition Times |
Número de pieza similar - TL145406_14 |
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Descripción similar - TL145406_14 |
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