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ST232C Scheda tecnica(PDF) 3 Page - STMicroelectronics |
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ST232C Scheda tecnica(HTML) 3 Page - STMicroelectronics |
3 / 11 page TRANSMITTER ELECTRICAL CHARACTERISTICS (C1 -C4 = 0.1 µF, VCC =5V ± 10%, TA = -40 to 85 oC, unless otherwise specified. Typical Valus are referred to TA =25 oC) Symb ol Parameter T est Cond it ion s Value Un it Min. T yp. Max. VTOUT Output Voltage Swing All Transmitter outputs are loaded with 3K Ω to GND ±5 ±7.8 V ITIL Logic Pull-Up Current TIN = 0 V 15 200 µA VTIL Input Logic Threshold Low 0.8 V VTIH Input Logic Threshold High 2 V SRT Transition Slew Rate TA =25 oC, V CC =5 V, RL =3 to 7 K Ω, CL= 50 to 2500 pF (Note 1) 730 V/ µs DR Data Rate (Note 2) 120 220 Kbits/s RTOUT Transmitter Output Resistance VCC = V+ = V- = 0V VOUT = ± 2V 300 Ω ISC Transmitter Output Short Circuit Current one TXOUT to GND ±10 ±60 mA Note 1: Measured from 3V to -3Vor from -3V to 3V. Note 2: One trasmitter output is loaded with RL =3K Ω to7KΩ,CL = 50to 1000pF ELECTRICAL CHARACTERISTICS (C1 -C4 = 0.1 µF, VCC =5V ± 10% TA = -40 to 85 oC, unless otherwise specified. Typical Valus are referred to TA =25 oC) Symb ol Parameter T est Cond it ion s Value Un it Min. T yp. Max. ISUPPLY VCC Power Supply Current No Load, TA =25 oC 5 10 mA RECEIVER ELECTRICAL CHARACTERISTICS (C1 -C4 = 0.1 µF, VCC =5V ± 10%, TA = -40 to 85 oC, unless otherwise specified. Typical Valus are referred to TA =25 oC) Symb ol Parameter T est Cond it ion s Value Un it Min. T yp. Max. VRIN Receiver Input Voltage Operating Range -30 30 V RRIN RS-232 Input Resistance TA =25 oC, V CC =5 V, VRIN =5 V 357 K Ω VRIL RS-232 Input Logic Threshold Low TA =25 oC, VCC = 5 V 0.8 1.2 V VRIH RS-232 Input Logic Threshold High TA =25 oC, V CC = 5 V 1.7 2.4 V VRIHYS RS-232 Input Hysteresis VCC = 5 V 0.2 0.5 1 V VROL TTL/CMOS Output Voltage Low IOUT = 3.2mA (to VCC) 0.4 V VROH TTL/CMOS Output Voltage High IOUT = 1mA (to GND) 3.5 VCC-0.4 V tdR Propagation Delay Time CL=150pF (Note 1) 0.3 1 µs ISCR Receiver Output Short Circuit Current ±10 mA Note 1: RS-232 IN to TTL-CMOS OUT (from 50% to 50%) ST232 3/11 |
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Descrizione simile - ST232C |
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