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MAX3243CPWG4 Datasheet(PDF) 8 Page - Texas Instruments |
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MAX3243CPWG4 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 16 page MAX3243 3V TO 5.5V MULTICHANNEL RS232 LINE DRIVER/RECEIVER WITH ±15kV ESD (HBM) PROTECTION SLLS350L − APRIL 1999 − REVISED MARCH 2004 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION 50 Ω TEST CIRCUIT VOLTAGE WAVEFORMS 0 V 3 V Output Input VOL VOH tPLH Generator (see Note B) RL 3 V FORCEOFF RS-232 Output tPHL CL (see Note A) NOTES: A. CL includes probe and jig capacitance. B. The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns. 50% 50% 1.5 V 1.5 V Figure 2. Driver Pulse Skew TEST CIRCUIT VOLTAGE WAVEFORMS 50 Ω −3 V 3 V Output Input VOL VOH tPHL Generator (see Note B) tPLH Output CL (see Note A) 3 V or 0 V FORCEON NOTES: A. CL includes probe and jig capacitance. B. The pulse generator has the following characteristics: ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns. 3 V FORCEOFF 1.5 V 1.5 V 50% 50% Figure 3. Receiver Propagation Delay Times TEST CIRCUIT 50 Ω Generator (see Note B) 3 V or 0 V 3 V or 0 V FORCEON FORCEOFF NOTES: A. CL includes probe and jig capacitance. B. The pulse generator has the following characteristics: ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns. C. tPLZ and tPHZ are the same as tdis. D. tPZL and tPZH are the same as ten. RL S1 VCC GND CL (see Note A) Output VOLTAGE WAVEFORMS Output VOL VOH tPZH (S1 at GND) 3 V 0 V 0.3 V Output Input 0.3 V 1.5 V 1.5 V 50% tPHZ (S1 at GND) tPLZ (S1 at VCC) 50% tPZL (S1 at VCC) Figure 4. Receiver Enable and Disable Times |
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