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ST3222BTR Datasheet(PDF) 6 Page - STMicroelectronics |
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ST3222BTR Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 13 page Electrical characteristics ST3222B - ST3222C 6/13 3.1 Receiver electrical characteristics Table 7. Receiver electrical characteristics (C1 - C4 = 0.1 µF, VCC = 3 V to 3.6 V, 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°C, VCC = 3.3V 0.6 1.2 V VRIH Input threshold high TA = 25°C, VCC = 3.3V 1.5 2.4 V 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 8. Timing characteristics (C1 - C4 = 0.1 µF, VCC = 3 V to 3.6 V, 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 = 3 kΩ CL2= 1000pF one transmitter switching 240 400 Kbps tPHLR tPLHR Propagation delay input to output RXIN to RXOUT, CL = 150pF 0.2 µs |tPHLT - tTHL| Transmitter propagation delay difference (1) 100 ns tOER Receiver output enable time Normal operation 200 ns tODR Receiver output disable time Normal operation 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 1. Transmitter skew is measured at the transmitter zero cross points |
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