ICL3222CA-T

Product Overview

Category: Integrated Circuit (IC)

Use: The ICL3222CA-T is a dual RS-232 transceiver IC that provides two-way communication between serial devices and microcontrollers or other digital systems. It is commonly used in applications requiring serial communication, such as computer peripherals, industrial automation, and telecommunications.

Characteristics: - Dual-channel RS-232 transceiver - Supports data rates up to 120 kbps - Operates with a single power supply of 3.0V to 5.5V - Low power consumption - ESD protection for robustness against electrostatic discharge

Package: The ICL3222CA-T is available in a small outline integrated circuit (SOIC) package. This package offers compact size and ease of integration into various electronic systems.

Essence: The essence of the ICL3222CA-T lies in its ability to facilitate reliable and efficient serial communication between different devices, enabling seamless data transfer and control.

Packaging/Quantity: The ICL3222CA-T is typically sold in reels or tubes, containing a specified quantity of ICs per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage: 3.0V to 5.5V
• Data Rate: Up to 120 kbps
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 2
• Input/Output Logic Levels: CMOS/TTL compatible
• ESD Protection: ±15kV (Human Body Model)
• Package Type: SOIC

Pin Configuration

The ICL3222CA-T features a 16-pin SOIC package with the following pin configuration:

```

Pin Name Description

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

Functional Features

The ICL3222CA-T offers the following functional features:

• Dual-channel RS-232 transceiver for simultaneous communication with two devices
• Supports both data transmission and reception
• Wide operating voltage range allows compatibility with various systems
• Low power consumption for energy-efficient operation
• ESD protection safeguards against electrostatic discharge, ensuring device reliability

Advantages and Disadvantages

Advantages: - Dual-channel design enables efficient communication between multiple devices - Wide operating voltage range enhances compatibility with different systems - Low power consumption prolongs battery life in portable applications - ESD protection ensures robustness against electrostatic discharge

Disadvantages: - Limited maximum data rate of 120 kbps may not be suitable for high-speed applications - Requires external capacitors for proper operation, adding to the component count and board space requirements

Working Principles

The ICL3222CA-T operates based on the RS-232 standard, which defines the electrical characteristics and signaling for serial communication. It uses voltage levels to represent binary data, with positive voltages indicating logic 0 and negative voltages representing logic 1.

The transceiver receives incoming data from the RS-232 line, converts it into TTL/CMOS-compatible logic levels, and outputs it to the microcontroller or digital system. Similarly, it accepts TTL/CMOS-level data from the microcontroller, converts it into RS-232 levels, and transmits it over the RS-232 line.

The device incorporates internal circuitry for voltage level shifting, noise filtering, and ESD protection to ensure reliable data transmission in various environments.

Detailed Application Field Plans

The ICL3222CA-T finds applications in a wide range of industries and systems, including:

1. Computer Peripherals:

   • Serial communication between PCs and peripherals such as printers, scanners, and modems.
   • Interface between microcontrollers and USB-to-serial converters.

2. Industrial Automation:

   • Communication between programmable logic controllers (PLCs) and various industrial devices like sensors, actuators, and displays.
   • Data exchange between control systems and human-machine