The SN75C189, manufactured by Texas Instruments, is a quadruple low-power line receiver designed to meet the stringent requirements of EIA standards. This integrated circuit is particularly well-suited for telecommunication applications and is commonly used in interfaces that adhere to the EIA-232-E and ITU recommendation V.28 standards.

Key Features

• Power Supply Range: The device operates over a wide range of power supplies, from 4.5 V to 5.5 V, making it versatile for various applications.
• Low Power Consumption: The SN75C189 is optimized for low-power consumption, with a typical supply current of only 1 mA, which is ideal for power-sensitive designs.
• Input Resistance: It boasts a high input impedance of 3 kΩ to 7 kΩ, which minimizes the loading on the bus lines and allows for multiple receivers on the same bus.
• Input Sensitivity: The device features an input sensitivity of ±200 mV, ensuring reliable data reception even under less-than-ideal conditions.
• Output: Its outputs are TTL compatible, allowing for easy integration with digital systems.

Applications

The SN75C189 is commonly used in a variety of applications that require reliable data transmission over long distances or in noisy environments. This includes:

• Data terminals
• Telecommunications equipment
• Modems
• Serial data communication

Quality and Reliability

Texas Instruments is known for its commitment to quality and reliability, and the SN75C189 is no exception. Each device is rigorously tested to ensure it meets the high standards expected from Texas Instruments products.

Package and Availability

The SN75C189 is available in multiple package types, including the standard 14-pin PDIP (Plastic Dual-In-Line Package), as well as SOP (Small Outline Package) and SSOP (Shrink Small Outline Package) for space-constrained applications. Availability can vary, so customers are encouraged to check the Texas Instruments website or contact their sales representatives for the most current information.