SN75154 - 四路差动线路接收器

SN75154是TI德州仪器公司的一款无产品，SN75154是四路差动线路接收器，本站介绍了SN75154的封装应用图解、特点和优点、功能等，并给出了与SN75154相关的TI元器件型号供参考。

SN75154 - 四路差动线路接收器 - 无 - RS-232收发器 - 德州仪器

产品描述

The SN75154 is a monolithic low-power Schottky line receiver designed to satisfy the requirements of the standard interface between data terminal equipment and data communication equipment as defined by ANSI Standard EIA/TIA-232-E. Other applications are for relatively short, single-line, point-to-point data transmission and for level translators. Operation is normally from a single 5-V supply; however, a built-in option allows operation from a 12-V supply without the use of additional components. The output is compatible with most TTL circuits when either supply voltage is used.

In normal operation, the threshold-control terminals are connected to the VCC1 terminal, even if power is being supplied via the alternate VCC2 terminal. This provides a wide hysteresis loop, which is the difference between the positive-going and negative-going threshold voltages. See typical characteristics. In this mode of operation, if the input voltage goes to zero, the output voltage will remain at the low or high level as determined by the previous input.

For fail-safe operation, the threshold-control terminals are open. This reduces the hysteresis loop by causing the negative-going threshold voltage to be above zero. The positive-going threshold voltage remains above zero as it is unaffected by the disposition of the threshold terminals. In the fail-safe mode, if the input voltage goes to zero or an open-circuit condition, the output will go to the high level regardless of the previous input condition.

The SN75154 is characterized for operation from 0°C to 70°C.

产品特性

Meets or Exceeds the Requirements of ANSI Standard EIA/TIA-232-E and ITU Recommendation V.28
Input Resistance . . . 3 k Over Full EIA/TIA-232-E Voltage Range
Input Threshold Adjustable to Meet Fail-Safe Requirements Without Using External Components
Built-In Hysteresis for Increased Noise Immunity
Inverting Output Compatible With TTL
Output With Active Pullup for Symmetrical Switching Speeds
Standard Supply Voltages . . . 5 V or 12 V

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