器件名称:
ST485EXN
功能描述:
文件大小:
305.76KB 共19页
简 介:
ST485E ±15KV ESD protected, low power RS-485/RS-422 transceiver General features ■ ■ ■ ■ ■ ■ ■ ■ ■ Low quiescent current: 300A 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 driver and one receiver in half duplex configuration. This transceiver draws 300A (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 ■ Description The ST485E is a low power transceiver for RS485 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 Order codes Part numbers ST485ECN ST485EBN ST485EXN ST485EBD ST485ECDR ST485EBDR ST485EXDR January 2007 Temperature range 0 to 70 °C -40 to 85 °C -55 to 125 °C -40 to 85 °C 0 to 70 °……
