ST232CDR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Serial Transceiver
• Characteristics:
  • Low-power dual driver/receiver
  • Operates from a single 5V power supply
  • Compatible with RS-232 and V.28 standards
  • Supports data rates up to 120 kbps
  • Available in SO-16 package
• Essence: ST232CDR is a versatile serial transceiver IC that enables bidirectional communication between microcontrollers or other digital devices and RS-232 compatible systems.
• Packaging/Quantity: The ST232CDR is packaged in a small outline (SO-16) package and is available in quantities of 2500 units per reel.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: Up to 120 kbps
• Number of Channels: 2
• Input/Output Voltage Levels: TTL/CMOS compatible
• ESD Protection: ±15kV (Human Body Model)

Detailed Pin Configuration

The ST232CDR has a total of 16 pins, which are assigned as follows:

1. VCC - Power Supply
2. GND - Ground
3. T1IN - Channel 1 Transmit Data Input
4. R1OUT - Channel 1 Receive Data Output
5. T1OUT - Channel 1 Transmit Data Output
6. R1IN - Channel 1 Receive Data Input
7. T2IN - Channel 2 Transmit Data Input
8. R2OUT - Channel 2 Receive Data Output
9. T2OUT - Channel 2 Transmit Data Output
10. R2IN - Channel 2 Receive Data Input
11. C1+ - Channel 1 Capacitor Positive Terminal
12. C1- - Channel 1 Capacitor Negative Terminal
13. C2- - Channel 2 Capacitor Negative Terminal
14. C2+ - Channel 2 Capacitor Positive Terminal
15. V- - Negative Power Supply
16. V+ - Positive Power Supply

Functional Features

• Dual Driver/Receiver: The ST232CDR features two independent driver/receiver channels, allowing simultaneous bidirectional communication.
• RS-232 Compatibility: It is fully compatible with the RS-232 and V.28 standards, ensuring seamless integration with existing systems.
• Low Power Consumption: Designed for low-power applications, the ST232CDR operates efficiently from a single 5V power supply.
• ESD Protection: The IC provides robust electrostatic discharge (ESD) protection of ±15kV, safeguarding against potential damage.

Advantages and Disadvantages

Advantages: - Versatile and widely compatible with RS-232 systems - Low power consumption for energy-efficient operation - Robust ESD protection for enhanced reliability - Dual driver/receiver channels enable simultaneous communication

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

Working Principles

The ST232CDR operates by converting TTL/CMOS logic levels to RS-232 voltage levels and vice versa. It utilizes internal charge pumps to generate the necessary voltage levels required by the RS-232 standard. The dual driver/receiver architecture allows bidirectional data transmission between the microcontroller or digital device and the RS-232 system.

Detailed Application Field Plans

The ST232CDR finds applications in various fields, including but not limited to: - Industrial automation - Telecommunications - Networking equipment - Point-of-sale systems - Medical devices - Consumer electronics

Alternative Models

Some alternative models that offer similar functionality to the ST232CDR include: - MAX232 - ADM3202 - SP3232 - LTC1387

These models can be considered as alternatives based on specific requirements and compatibility with the target system.

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