Datenblatt-Suchmaschine für elektronische Bauteile |
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ST3232EBD Datenblatt(PDF) 4 Page - STMicroelectronics |
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ST3232EBD Datenblatt(HTML) 4 Page - STMicroelectronics |
4 / 16 page ST3232E 4/16 RECEIVER ELECTRICAL CHARACTERISTICS (C1 - C4 = 0.1µF tested at VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C) TIMING CHARACTERISTICS (C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C) Transmitter Skew is measured at the transmitter zero cross points Symbol Parameter Test Conditions Min. Typ. Max. Unit VRIN Receiver Input Voltage Operating Range -25 25 V VRIL RS-232 Input Threshold Low TA = 25°C VCC = 3.3V 0.6 1.1 V TA = 25°C VCC = 5V 0.8 1.5 VRIH RS-232 Input Threshold High TA = 25°C VCC = 3.3V 1.4 2.4 V TA = 25°C VCC = 5V 1.8 2.4 VRIHYS Input Hysteresis 0.5 V RRIN Input Resistance TA = 25°C 3 5 7 K Ω VROL TTL/CMOS Output Voltage Low IOUT = 1.6mA 0.4 V VROH TTL/CMOS Output Voltage High IOUT = -1mA VCC-0.6 VCC-0.1 V Symbol Parameter Test Conditions Min. Typ. Max. Unit DR Data Transfer Rate RL = 3KΩ CL2= 1000pF one trasmitter switching 250 Kbps tPHLR tPLHR Propagation Delay Input to Output RXIN = RXOUT CL = 150pF 0.15 µs tOER Receiver Output Enable Time Normal Operation 50 ns tODR Receiver Output Disable Time Normal Operation 50 ns |tPHLT - tTHL| Transmitter Propagation Delay Difference (Note 1) 200 ns |tPHLR - tTHR| Receiver Propagation Delay Difference 50 ns SRT Trnasition Slew Rate TA = 25°C RL = 3KΩ to 7KΩ VCC = 3.3V measured from +3V to -3V or -3V to +3V CL = 150pF to 1000pF CL = 150pF to 2500pF 6 4 30 30 V/ µs V/ µs |
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