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ST3222EBPR Scheda tecnica(PDF) 7 Page - STMicroelectronics |
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ST3222EBPR Scheda tecnica(HTML) 7 Page - STMicroelectronics |
7 / 18 page ST3222E Electrical characteristics 7/18 Table 8. Receiver electrical 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) Symbol Parameter Test Conditions Min. Typ. Max. Unit IOL Output leakage current R-OUT, EN = VCC, receiver disabled ± 0.05 ± 10 µA VRIN Receiver input voltage operating range -25 25 V VRIL Input threshold low TA = 25°CVCC = 3.3V 0.6 1.2 V TA = 25°CVCC = 5V 0.8 1.5 VRIH Input threshold high TA = 25°CVCC = 3.3V 1.5 2.4 V TA = 25°CVCC = 5V 1.8 2.4 VRIHYS Input hysteresis 0.5 V RRIN Input resistance TA = 25°C 3 5 7 K Ω VROL Output voltage low IOUT = 1.6mA 0.4 V VROH Output voltage high IOUT = -1mA VCC-0.6 VCC- 0.1 V Table 9. 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) Symbol Parameter Test conditions Min. Typ. Max. Unit DR Data transfer rate RL = 3KΩCL2= 1000pF one transmitter switching 250 Kbps tPHLR tPLHR Propagation delay input to output RXIN to RXOUTCL = 150pF 0.15 µs |tPHLT - tTHL| Transmitter propagation delay difference (1) 200 ns tOER Receiver output enable time Normal operation 50 ns tODR Receiver output disable time Normal operation 50 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 1. Transmitter Skew is measured at the transmitter zero cross points |
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