SN75ALS1178 - 双路差动驱动器和接收器

SN75ALS1178是TI德州仪器公司的一款无产品，SN75ALS1178是双路差动驱动器和接收器，本站介绍了SN75ALS1178的封装应用图解、特点和优点、功能等，并给出了与SN75ALS1178相关的TI元器件型号供参考。

SN75ALS1178 - 双路差动驱动器和接收器 - 无 - RS-485收发器 - 德州仪器

产品描述

The SN75ALS1177 and SN75ALS1178 dual differential drivers and receivers are integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. They are designed for balanced transmission lines and meet standards TIA/EIA-422-B and TIA/EIA-485-A.

The SN75ALS1177 combines dual 3-state differential line drivers and dual 3-state differential input line receivers, both of which operate from a single 5-V power supply. The drivers and receivers have active-high and active-low enables, respectively, which can be externally connected together to function as direction control. The SN75ALS1178 drivers each have an individual active-high enable. Fail-safe design ensures that when the receiver inputs are open, the receiver outputs are always high.

The SN75ALS1177 and SN75ALS1178 are characterized for operation from 0°C to 70°C.

产品特性

Meet or Exceed Standards TIA/EIA-422-B and TIA/EIA-485-A
Designed for Multipoint Bus Transmission on Long Bus Lines in Noisy Environments
Low Supply-Current Requirement 50 mA Max
Driver Positive- and Negative-Current Limiting
Driver Common-Mode Output Voltage Range of -7 V to 12 V
Thermal Shutdown Protection
Driver 3-State Outputs Active-High Enable
Receiver Common-Mode Input Voltage Range of -12 V to 12 V
Receiver Input Sensitivity...±200 mV
Receiver Hysteresis...50 mV Typ
Receiver High Input Impedance...12k Min
Receiver 3-State Outputs Active-Low Enable for SN75ALS1177 Only
Operate From Single 5-V Supply

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