The SN75C189A from Texas Instruments is a quadruple low-power line receiver designed to meet the rigorous demands of industrial applications and to provide a reliable solution for data transmission over long distances. This integrated circuit is part of the 5-V RS-232 line of devices and offers improved performance with lower power consumption compared to its predecessors.
Key Features
- Low Power Consumption: The SN75C189A operates with a typical supply current of 300 μA, making it an ideal choice for power-sensitive applications.
- High Input Impedance: It features an input impedance of 3 kΩ to 7 kΩ, allowing multiple receivers to be connected in parallel without overloading the driving line.
- Wide Range of Supply Voltages: This device can function over a wide range of supply voltages from 4.5 V to 5.5 V, offering flexibility in various system designs.
- Input Hysteresis: Built-in hysteresis of typically 1000 mV enables enhanced noise immunity and allows for cleaner signal reception.
Applications
The SN75C189A is suitable for a variety of applications, including:
- Telecommunications
- Data acquisition systems
- Serial data communication
- Industrial control systems
Technical Specifications
The device comes in a standard 14-pin DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package, ensuring easy integration into a wide range of electronic systems. The operating temperature range of the SN75C189A is from 0°C to 70°C, which is suitable for commercial environments.
Quality and Reliability
Texas Instruments is known for its commitment to quality and reliability, and the SN75C189A is no exception. It is designed to meet or exceed the stringent requirements of industrial standards, ensuring a robust performance in the most demanding conditions.
Ordering Information
For ordering, refer to the part number SN75C189AN for the DIP package and SN75C189AD for the SOIC package. For detailed product specifications, technical documents, and support, please visit the Texas Instruments official website or contact their customer support service.
