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ST202B Folha de dados(PDF) 6 Page - STMicroelectronics |
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ST202B Folha de dados(HTML) 6 Page - STMicroelectronics |
6 / 17 page Electrical characteristics ST202B - ST202C 6/17 Table 6. Receiver electrical characteristics (C1 - C4 = 0.1 µF, VCC = 5 V ± 10 %, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C). Symbol Parameter Test condition Min. Typ. Max. Unit VRIN Receiver input voltage operating range -30 30 V RRIN RS-232 input resistance TA = 25°C 3 5 7 k Ω VRIL RS-232 input threshold low 0.8 1.3 V VRIH RS-232 input threshold high 1.8 2.4 V VRIHYS RS-232 input hysteresis VCC = 5V 0.2 0.5 1 V VROL TTL/CMOS output voltage low IOUT = 3.2mA (to VCC)0.2 0.4 V VROH TTL/CMOS output voltage high IOUT = 1mA (to GND) 3.5 VCC-0.2 V ISCR Receiver output short circuit current to GND 2 10 mA to VCC 10 30 tDR Propagation delay time CL = 150pF (1) 0.1 0.5 µs 1. RS-232 in to TTL-CMOS out (from 50% to 50%) |
Nº de peça semelhante - ST202B |
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Descrição semelhante - ST202B |
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