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MAX232-ACWE Datasheet(PDF) 9 Page - Maxim Integrated Products |
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MAX232-ACWE Datasheet(HTML) 9 Page - Maxim Integrated Products |
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9 / 38 page  +5V-Powered, Multichannel RS-232 Drivers/Receivers Supply Voltage Range 4.75 5.25 V Transmitter Enable Time MAX225 10 20 tET No load MAX244–MAX249 11 30 510 30 MAX225 40 VCC Supply Current (Normal Operation) 3k Ω loads on all outputs MAX244–MAX249 57 mA Transition Slew Rate 825 CL = 50pF to 2500pF, RL = 3k Ω to 7kΩ, VCC = +5V, TA = +25°C, measured from +3V to -3V or -3V to +3V TA = TMIN to TMAX CONDITIONS 50 V/µs MAX246–MAX249 (excludes charge-pump startup) Shutdown Supply Current µA 5 tPHLT, Figure 1 1.3 3.5 µs tPLHT, Figure 1 1.5 3.5 Transmitter Disable Time Transmitter Propagation Delay TLL to RS-232 (Normal Operation) µs tDT, Figure 4 100 ns Transmitter + to - Propagation Delay Difference (Normal Operation) tPHLT - tPLHT UNITS MIN TYP MAX 350 PARAMETER ns Receiver + to - Propagation Delay Difference (Normal Operation) tPHLR - tPLHR 350 ns 4.5 5.5 MAX244–MAX249 MAX225 Leakage current ±1 Logic-low voltage 1.4 0.8 Control Input Logic-high voltage 2.4 1.4 V µA TA = +25°C tPHLR, Figure 2 0.6 1.5 tPLHR, Figure 2 0.6 1.5 Receiver Propagation Delay TLL to RS-232 (Normal Operation) µs tPHLS, Figure 2 0.6 10 tPLHS, Figure 2 3.0 10 Receiver Propagation Delay TLL to RS-232 (Low-Power Mode) µs Receiver-Output Enable Time tER, Figure 3 100 500 ns Receiver-Output Disable Time tDR, Figure 3 100 500 ns MAX225/MAX245–MAX249 (includes charge-pump startup) 10 ms POWER SUPPLY AND CONTROL LOGIC AC CHARACTERISTICS Note 7: All units production tested at hot. Specifications over temperature are guaranteed by design. Note 8: The 300 Ω minimum specification complies with EIA/TIA-232E, but the actual resistance when in shutdown mode or VCC = 0V is 10M Ω as is implied by the leakage specification. ELECTRICAL CHARACTERISTICS—MAX225/MAX244–MAX249 (continued) (MAX225, VCC = +5.0V ±5%; MAX244–MAX249, VCC = +5.0V ±10%, external capacitors C1–C4 = 1µF; TA = TMIN to TMAX; unless otherwise noted.) (Note 7) Maxim Integrated 9 MAX220–MAX249 MAX220–MAX249 |
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Similar Description - MAX232-ACWE |
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