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ST232BWR
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ST232BWR

Product Overview

Category: Integrated Circuit (IC)

Use: The ST232BWR is a dual driver/receiver IC designed for RS-232 communication applications. It provides the necessary electrical interface between an asynchronous communication controller and the serial port connector.

Characteristics: - Dual driver/receiver functionality - Supports RS-232 voltage levels - Low power consumption - Wide operating voltage range - ESD protection on all pins

Package: SO-16 (Small Outline 16-pin package)

Essence: The ST232BWR is an essential component in enabling reliable and efficient RS-232 communication between devices.

Packaging/Quantity: The ST232BWR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Supply Voltage Range: +3.0V to +5.5V
  • Data Rate: Up to 120 kbps
  • Operating Temperature Range: -40°C to +85°C
  • Input/Output Capacitance: 30 pF
  • ESD Protection: ±15kV (Human Body Model)

Detailed Pin Configuration

The ST232BWR features a total of 16 pins, each serving a specific function. The pin configuration is as follows:

  1. VCC - Power supply voltage
  2. GND - Ground reference
  3. T1OUT - Transmit data output for channel 1
  4. R1IN - Receive data input for channel 1
  5. T1IN - Transmit data input for channel 1
  6. R1OUT - Receive data output for channel 1
  7. T2OUT - Transmit data output for channel 2
  8. R2IN - Receive data input for channel 2
  9. T2IN - Transmit data input for channel 2
  10. R2OUT - Receive data output for channel 2
  11. C1+ - External capacitor connection for channel 1
  12. C1- - External capacitor connection for channel 1
  13. C2+ - External capacitor connection for channel 2
  14. C2- - External capacitor connection for channel 2
  15. SHDN - Shutdown control input (active low)
  16. NC - No connection

Functional Features

The ST232BWR offers the following functional features:

  • Dual driver/receiver channels for simultaneous bidirectional communication.
  • Supports RS-232 voltage levels, ensuring compatibility with a wide range of devices.
  • Low power consumption, making it suitable for battery-powered applications.
  • Wide operating voltage range allows for flexibility in various system configurations.
  • ESD protection on all pins safeguards against electrostatic discharge.

Advantages and Disadvantages

Advantages: - Dual driver/receiver functionality enables efficient communication between devices. - Wide operating voltage range provides flexibility in different applications. - ESD protection ensures robustness and reliability. - Low power consumption extends battery life in portable devices.

Disadvantages: - Limited data rate compared to some modern communication standards. - Requires external capacitors for proper operation.

Working Principles

The ST232BWR operates by converting the logic level signals from an asynchronous communication controller into RS-232 voltage levels suitable for transmission over long distances. It uses internal charge pumps to generate the required positive and negative voltages for RS-232 communication.

Detailed Application Field Plans

The ST232BWR is widely used in various applications that require RS-232 communication, including but not limited to: - Industrial automation systems - Point-of-sale terminals - Networking equipment - Medical devices - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the ST232BWR include: - MAX232: A popular dual driver/receiver IC with similar functionality. - ADM3202: Dual RS-232 line driver/receiver with enhanced ESD protection. - SP3232: Low-power dual RS-232 transceiver with automatic shutdown.

These alternative models offer similar features and can be used as replacements for the ST232BWR in various applications.

In conclusion, the ST232BWR is a versatile dual driver/receiver IC designed for RS-232 communication. Its wide operating voltage range, low power consumption, and ESD protection make it suitable for a range of applications. With its functional features and reliable performance, the ST232BWR is an essential component in enabling efficient serial communication between devices.

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av ST232BWR i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of ST232BWR in technical solutions:

  1. Q: What is the ST232BWR? A: The ST232BWR is a dual driver/receiver IC (integrated circuit) used for converting TTL/CMOS logic levels to RS-232 voltage levels.

  2. Q: What are the typical applications of the ST232BWR? A: The ST232BWR is commonly used in various applications such as serial communication interfaces, industrial automation, embedded systems, and computer peripherals.

  3. Q: What is the operating voltage range of the ST232BWR? A: The ST232BWR operates within a voltage range of 4.5V to 5.5V.

  4. Q: How many channels does the ST232BWR support? A: The ST232BWR supports two independent channels, allowing it to handle two separate data lines simultaneously.

  5. Q: What is the maximum data rate supported by the ST232BWR? A: The ST232BWR can support data rates up to 120 kbps (kilobits per second).

  6. Q: Does the ST232BWR require external capacitors? A: Yes, the ST232BWR requires four external capacitors for proper operation. Two capacitors are needed for each channel.

  7. Q: Can the ST232BWR be used with both RS-232 and TTL/CMOS devices? A: Yes, the ST232BWR is designed to interface between RS-232 and TTL/CMOS devices, making it compatible with both types of devices.

  8. Q: What is the power supply current consumption of the ST232BWR? A: The power supply current consumption of the ST232BWR is typically around 5 mA (milliamperes) when idle.

  9. Q: Does the ST232BWR provide any protection features? A: Yes, the ST232BWR includes built-in protection features such as thermal shutdown and electrostatic discharge (ESD) protection.

  10. Q: Is the ST232BWR available in different package options? A: Yes, the ST232BWR is available in various package options, including SO-16 and TSSOP-16, providing flexibility for different PCB layouts and space constraints.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements.