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SP337EUET-L Datasheet(PDF) 6 Page - Exar Corporation |
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SP337EUET-L Datasheet(HTML) 6 Page - Exar Corporation |
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6 / 18 page  SP337E 6 3.3V TO 5V RS-232/RS-485/RS-422 MULTIPROTOCOL TRANSCEIVER REV. 1.0.2 IOSS Receiver Output ShortCircuit Current +/-40 +/-65 mA 0 < Vo < Vcc IOZ Receiver Output Leakage Current +/-0.1 +/-1.5 μA Receivers Disabled SINGLE-ENDED RECEIVER INPUTS (RS-232) Input Voltage Range -15 +15 V Input Threshold Low 0.6 1.2 V VCC = 3.3V 0.8 1.5 V VCC = 5.0V Input Threshold HIGH 1.5 2.0 V VCC = 3.3V 1.8 2.4 V VCC = 5.0V Input Hysteresis 0.5 V Input Resistance 3 5 7 k Ω DIFFERENTIAL RECEIVER INPUTS (RS-485 / RS-422) RIN Receiver Input Resistance 96 k Ω -7V ≤ VCM ≤ +12V VTH Receiver Differential Threshold -200 -125 -50 mV ΔVTH Receiver Input Hysteresis 30 mV VCM = 0V IIN Input Current 125 μA VIN = 12V -100 μA VIN = -7V SINGLE-ENDED DRIVER OUTPUTS (RS-232) VO Output Voltage Swing +/-5.0 +/-5.4 V Output Loaded with 3k Ω to Gnd +/-7.0 V No Load Output Short Circuit Current +/-60 mA VO = 0V Power Off Impedance 300 10M W Vcc = 0V; VO = +/-2V DIFFERENTIAL DRIVER OUTPUTS (RS-485 / RS-422) VOD Differential Driver Output (Tx_Out) 2 Vcc V RL = 100Ω (RS-422), Figure 2 1.5 Vcc V RL = 54Ω (RS-485), Figure 2 1.5 Vcc V VCM = -7V, Figure 3 1.5 Vcc V VCM = +12V, Figure 3 ΔVOD Change In Magnitude of Differential Output Voltage -0.2 +0.2 V RL = 54Ω or 100Ω, Figure 2 VOC Driver CommonMode Output Voltage 3 V RL = 54Ω or 100Ω, Figure 2 ΔVOC Change In Magnitude of Common Mode Output Voltage 0.2 V RL = 54Ω or 100Ω, Figure 2 IOSD Driver Output Short Circuit Current +/-250 mA V = +12V to -7V, Figure 4 IO Output Leakage Current +/-100 μA TXEN = 0V or Shutdown, VO = +12V to -7V TIMING CHARACTERISTICS UNLESS OTHERWISE NOTED: VCC = +3.3V +/-5% OR +5.0V +/-5%, C1-C4 = 0.1 μF; TA = TMIN TO TMAX. TYPICAL VALUES ARE AT VCC = 3.3V, TA = +25OC. SYMBOL PARAMETERS MIN.TYP. MAX.UNITS CONDITIONS |
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