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MAX232 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX232 Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 36 page  +5V-Powered, Multichannel RS-232 Drivers/Receivers _______________________________________________________________________________________ 3 Note 4: MAX243 R2OUT is guaranteed to be low when R2IN is ≥ 0V or is floating. ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued) (VCC = +5V ±10%, C1–C4 = 0.1µF‚ MAX220, C1 = 0.047µF, C2–C4 = 0.33µF, TA = TMIN to TMAX‚ unless otherwise noted.) PARAMETER CONDITIONS MIN TYP MAX UNITS All except MAX220/MAX243, VCC = 5V, no hysteresis in SHDN 0.2 0.5 1.0 MAX220 0.3 RS-232 Input Hysteresis MAX243 1 V 35 7 RS-232 Input Resistance TA = +25°C (MAX220) 35 7 K Ω IOUT = 3.2mA 0.2 0.4 TTL/CMOS Output Voltage Low IOUT = 1.6mA (MAX220) 0.4 V TTL/CMOS Output Voltage High IOUT = -1.0mA 3.5 VCC - 0.2 V Sourcing VOUT = GND -2 -10 TTL/CMOS Output Short-Circuit Current Shrinking VOUT = VCC 10 30 mA TTL/CMOS Output Leakage Current SHDN = VCC or EN = VCC (SHDN = 0V for MAX222), 0V ≤ VOUT ≤ VCC ±0.05 ±10 µA EN Input Threshold Low MAX242 1.4 0.8 V EN Input Threshold High MAX242 2.0 1.4 V Operating Supply Voltage 4.5 5.5 V MAX220 0.5 2 No load MAX222/MAX232A/MAX233A/ MAX242/MAX243 410 MAX220 12 VCC Supply Current (SHDN = VCC), figures 5, 6, 11, 19 3k Ω load both inputs MAX222/MAX232A/MAX233A/ MAX242/MAX243 15 µA TA = +25°C 0.1 10 TA = 0°C to +70°C 2 50 TA = -40°C to +85°C 2 50 Shutdown Supply Current MAX222/ MAX242 TA = -55°C to +125°C 35 100 µA SHDN Input Leakage Current MAX222/MAX242 ±1 µA SHDN Threshold Low MAX222/MAX242 1.4 0.8 V SHDN Threshold High MAX222/MAX242 2.0 1.4 V MAX222/MAX232A/MAX233/ MAX242/MAX243 612 30 Transition Slew Rate CL = 50pF to 2500pF, RL = 3k Ω to 7k Ω, VCC = 5V, TA = +25°C, measured from +3V to -3V or -3V MAX220 1.5 3 30.0 V/µs MAX222/MAX232A/MAX233/ MAX242/MAX243 1.3 3.5 tPHLT MAX220 4 10 MAX222/MAX232A/MAX233/ MAX242/MAX243 1.5 3.5 Transmitter Propagation Delay TLL to RS-232 (Normal Operation), Figure 1 tPLHT MAX220 5 10 µs |
Número de pieza similar - MAX232 |
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Descripción similar - MAX232 |
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