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:

VCC - Power supply voltage
GND - Ground reference
T1OUT - Transmit data output for channel 1
R1IN - Receive data input for channel 1
T1IN - Transmit data input for channel 1
R1OUT - Receive data output for channel 1
T2OUT - Transmit data output for channel 2
R2IN - Receive data input for channel 2
T2IN - Transmit data input for channel 2
R2OUT - Receive data output for channel 2
C1+ - External capacitor connection for channel 1
C1- - External capacitor connection for channel 1
C2+ - External capacitor connection for channel 2
C2- - External capacitor connection for channel 2
SHDN - Shutdown control input (active low)
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.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ST232BWR v technických řešeních

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

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.
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.
Q: What is the operating voltage range of the ST232BWR? A: The ST232BWR operates within a voltage range of 4.5V to 5.5V.
Q: How many channels does the ST232BWR support? A: The ST232BWR supports two independent channels, allowing it to handle two separate data lines simultaneously.
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).
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.
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.
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.
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.
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.