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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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ST490ACD Scheda tecnica(PDF) 1 Page - STMicroelectronics |
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ST490ACD Scheda tecnica(HTML) 1 Page - STMicroelectronics |
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1 / 11 page  1/11 November 2002 s LOW SUPPLY CURRENT: 5mA MAX s -7 TO 12 COMMON MODE INPUT VOLTAGE RANGE s 70mV TYPICAL INPUT HYSTERESIS s DESIGNED FOR 25Mbps OPERATION s OPERATE FROM SINGLE 5 SUPPLY s ±4kV ESD PROTECTION s CURRENT LIMITING AND THERMAL SHUTDOWN FOR DRIVER OVERLOAD PROTECTION DESCRIPTION The ST490A is a low power transceiver for RS-485 and RS-422 communications. The device contains one driver and one receiver in full duplex configuration. The ST490A draws 5mA (typ.) of supply current when unloaded or fully loaded with disabled drivers. It operates from a single 5V supply. Driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that place the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic high output if both inputs are open circuit. ORDERING CODES Type Temperature Range Package Comments ST490ACN 0 to 70 °C DIP-8 50parts per tube / 40tube per box ST490ABN -40 to 85 °C DIP-8 50parts per tube / 40tube per box ST490ACD 0 to 70 °C SO-8 (Tube) 100parts per tube / 20tube per box ST490ABD -40 to 85 °C SO-8 (Tube) 100parts per tube / 20tube per box ST490ACDR 0 to 70 °C SO-8 (Tape & Reel) 2500 parts per reel ST490ABDR -40 to 85 °C SO-8 (Tape & Reel) 2500 parts per reel ST490A LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER DIP SOP |
Codice articolo simile - ST490ACD |
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Descrizione simile - ST490ACD |
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