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ST3232EBTR Datasheet(PDF) 6 Page - STMicroelectronics |
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ST3232EBTR Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 20 page Electrical characteristics ST3232E 6/20 Note: 1 Transmitter Skew is measured at the transmitter zero cross points Table 6. Receiver (C1 - C4 = 0.1µF tested at 3.3V±10%, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C) 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 Table 7. Timing characteristics (C1 - C4 = 0.1µF tested at 3.3V±10%, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C) Symbol Parameter Test conditions Min. Typ. Max. Unit DR Data transfer rate RL = 3KΩ, CL2= 1000pF one transmitter 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 Transition 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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