ST232BTR

Product Overview

Category

ST232BTR belongs to the category of integrated circuits (ICs).

Use

The ST232BTR is commonly used for voltage level translation in serial communication systems.

Characteristics

• Voltage level translation between TTL/CMOS logic levels and RS-232 signals
• Supports data rates up to 120 kbps
• Low power consumption
• Wide operating voltage range: 3V to 5.5V
• ESD protection for RS-232 I/O pins

Package

ST232BTR is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of ST232BTR lies in its ability to facilitate communication between devices operating at different voltage levels, ensuring compatibility and reliable data transmission.

Packaging/Quantity

ST232BTR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply voltage: 3V to 5.5V
• Operating temperature range: -40°C to +85°C
• Data rate: Up to 120 kbps
• Number of channels: 2 (transmitter and receiver)
• Logic voltage levels: TTL/CMOS (0V to Vcc) and RS-232 (-25V to +25V)

Detailed Pin Configuration

1. VCC - Power supply voltage
2. GND - Ground reference
3. T1IN - TTL/CMOS input for transmitter channel 1
4. T1OUT - RS-232 output for transmitter channel 1
5. R1IN - RS-232 input for receiver channel 1
6. R1OUT - TTL/CMOS output for receiver channel 1
7. R2OUT - TTL/CMOS output for receiver channel 2
8. R2IN - RS-232 input for receiver channel 2
9. T2OUT - RS-232 output for transmitter channel 2
10. T2IN - TTL/CMOS input for transmitter channel 2
11. C1+ - Capacitor connection for charge pump 1
12. C1- - Capacitor connection for charge pump 1
13. C2- - Capacitor connection for charge pump 2
14. C2+ - Capacitor connection for charge pump 2
15. SHDN - Shutdown control input (active low)
16. VCC - Power supply voltage

Functional Features

• Bidirectional voltage level translation between TTL/CMOS and RS-232 signals
• Automatic power shutdown mode when not in use (SHDN pin)
• Integrated charge pumps for generating RS-232 voltage levels
• ESD protection for RS-232 I/O pins

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various systems
• Low power consumption for energy-efficient applications
• ESD protection ensures robustness against electrostatic discharge
• Compact package size enables space-saving designs

Disadvantages

• Limited data rate compared to some other ICs available in the market
• Requires external capacitors for charge pump operation

Working Principles

ST232BTR utilizes charge pumps to generate the required RS-232 voltage levels from the lower TTL/CMOS logic levels. The bidirectional communication is achieved through the proper configuration of transmitter and receiver channels. The SHDN pin allows for power shutdown when the device is not in use, reducing power consumption.

Detailed Application Field Plans

ST232BTR finds applications in various fields, including but not limited to: - Industrial automation - Telecommunications - Networking equipment - Embedded systems - Consumer electronics

Alternative Models

Some alternative models to ST232BTR include: - MAX232: Manufactured by Maxim Integrated, offering similar functionality - SP3232: Produced by Exar Corporation, providing voltage level translation for RS-232 signals

These alternative models can be considered based on specific requirements and availability.

Word count: 533 words