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ST485EXDR Datasheet(PDF) 1 Page - STMicroelectronics |
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ST485EXDR Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 19 page January 2007 Rev 11 1/19 19 Order codes Part numbers Temperature range Package Packaging ST485ECN 0 to 70 °C DIP-8 50parts per tube / 40tube per box ST485EBN -40 to 85 °C DIP-8 50parts per tube / 40tube per box ST485EXN -55 to 125 °C DIP-8 50parts per tube / 40tube per box ST485EBD -40 to 85 °C SO-8 (Tube) 100parts per tube / 20tube per box ST485ECDR 0 to 70 °C SO-8 (Tape & reel) 2500 parts per reel ST485EBDR -40 to 85 °C SO-8 (Tape & reel) 2500 parts per reel ST485EXDR -55 to 125 °C SO-8 (Tape & reel) 2500 parts per reel ST485E ±15KV ESD protected, low power RS-485/RS-422 transceiver General features ■ Low quiescent current: 300µA ■ Designed for RS-485 interface application ■ -7V to 12V common mode input voltage range ■ Driver maintains high impedance in 3-state or with the power OFF ■ 70mV typical input hysteresis ■ 30ns propagation delay, 5ns skew ■ Operates from a single 5V supply ■ Current limiting and thermal shutdown for driver overload protection ■ ESD protection: – ±15KV (H.B.M.) – ±8KV (IEC-1000-4-2 contact discharge) ■ Allows up to 64 transceivers on the bus Description The ST485E is a low power transceiver for RS- 485 and RS-422 communication. Each driver output and receiver input is protected against ±15KV electrostatic discharge (H.B.M.) (ESD) shocks, without latch-up. These parts contain one driver and one receiver in half duplex configuration. This transceiver draws 300µA (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 ST485E is designed for bi-directional data communications on multipoint bus transmission lines (half-duplex applications). DIP-8 SO-8 www.st.com |
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