Overview
The SN75189N is a monolithic low-power Schottky quadruple line receiver designed by Texas Instruments. It is intended to meet the requirements of the standard interface between data-terminal equipment and data-communication equipment as defined by TIA/EIA-232-F. This device operates from a single 5-V supply and is fully interchangeable with Motorola's MC1489 and MC1489A. The SN75189N is characterized for operation over a temperature range of 0°C to 70°C, making it suitable for a variety of industrial and commercial applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 4.5 to 5.5 | V |
| Operating Temperature Range | 0 to 70 | °C |
| Input Voltage Range (VI) | ±30 | V |
| Input Resistance | 3 k to 7 k | Ω |
| High-Level Output Current (IOH) | -0.5 | mA |
| Low-Level Output Current (IOL) | -20 | mA |
| Package Type | PDIP (N) | |
| Pins | 14 | |
| Storage Temperature Range | -65 to 150 | °C |
Key Features
- Operates from a single 5-V supply.
- Built-in input hysteresis (double thresholds) for noise immunity.
- Response control terminal for input threshold shifting and noise filtering.
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU Recommendation V.28.
- Fully interchangeable with Motorola MC1489 and MC1489A.
- Low power consumption.
Applications
The SN75189N is used in various applications requiring RS-232 interface compatibility, including data-terminal equipment, data-communication equipment, and other serial communication systems. It is particularly useful in industrial control systems, medical devices, and any application where reliable and noise-immune serial communication is necessary.
Q & A
- What is the primary function of the SN75189N?
The SN75189N is a quadruple line receiver designed to meet the requirements of the RS-232 interface between data-terminal equipment and data-communication equipment. - What is the operating temperature range of the SN75189N?
The operating temperature range is 0°C to 70°C. - What is the supply voltage range for the SN75189N?
The supply voltage range is 4.5 V to 5.5 V. - What is the input voltage range for the SN75189N?
The input voltage range is ±30 V. - Does the SN75189N have built-in noise filtering?
Yes, it has built-in input hysteresis and a response control terminal for noise filtering. - Is the SN75189N compatible with other similar devices?
Yes, it is fully interchangeable with Motorola's MC1489 and MC1489A. - What types of applications is the SN75189N suitable for?
It is suitable for industrial control systems, medical devices, and other serial communication systems requiring RS-232 compatibility. - What is the package type of the SN75189N?
The package type is PDIP (N) with 14 pins. - What is the storage temperature range for the SN75189N?
The storage temperature range is -65°C to 150°C. - Does the SN75189N meet industry standards for RS-232 interfaces?
Yes, it meets or exceeds the requirements of TIA/EIA-232-F and ITU Recommendation V.28.
