ICL3221IA

Product Overview

Category: Integrated Circuit (IC)

Use: The ICL3221IA is a high-speed, low-power, 3.0V to 5.5V RS-232 transceiver IC. It is designed for interfacing between TTL logic and RS-232 voltage levels.

Characteristics: - High-speed data transmission - Low power consumption - Wide operating voltage range - Robust protection features against electrostatic discharge (ESD) - Compact package size

Package: The ICL3221IA is available in a small outline integrated circuit (SOIC) package.

Essence: The essence of the ICL3221IA lies in its ability to provide reliable and efficient communication between devices operating at different voltage levels.

Packaging/Quantity: The ICL3221IA is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 3.0V to 5.5V
• Data Rate: Up to 120kbps
• Number of Channels: 1
• Operating Temperature Range: -40°C to +85°C
• ESD Protection: ±15kV (Human Body Model)

Pin Configuration

The ICL3221IA has a total of 16 pins, which are assigned specific functions as follows:

1. VCC - Power supply input
2. GND - Ground reference
3. T1OUT - Transmitter output
4. R1IN - Receiver input
5. R1OUT - Receiver output
6. T1IN - Transmitter input
7. SHDN - Shutdown control input
8. NC - No connection
9. NC - No connection
10. NC - No connection
11. NC - No connection
12. NC - No connection
13. NC - No connection
14. NC - No connection
15. NC - No connection
16. VCC - Power supply input

Functional Features

• TTL/CMOS Compatible Inputs
• Auto Power Shutdown (SHDN) Mode
• Enhanced ESD Protection
• Receiver Hysteresis for Improved Noise Immunity
• Low Power Consumption

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Wide operating voltage range allows compatibility with various systems - Robust protection against electrostatic discharge - Compact package size enables space-saving designs

Disadvantages: - Limited to a single channel communication - Data rate limited to 120kbps

Working Principles

The ICL3221IA operates by converting TTL logic levels to RS-232 voltage levels and vice versa. It uses internal charge pumps to generate the required voltage levels for RS-232 communication. The transceiver incorporates various protection features, such as ESD protection and receiver hysteresis, to ensure reliable data transmission in noisy environments.

Detailed Application Field Plans

The ICL3221IA finds applications in various fields where interfacing between TTL logic and RS-232 voltage levels is required. Some common application areas include: - Industrial automation - Telecommunications - Networking equipment - Point-of-sale systems - Medical devices

Alternative Models

For those seeking alternative options, the following models can be considered: - MAX3232EIPWR - SP3232EEN-L/TR - ADM3202ARNZ

These models offer similar functionality and can be used as alternatives to the ICL3221IA.

In conclusion, the ICL3221IA is a versatile RS-232 transceiver IC that provides efficient communication between TTL logic and RS-232 voltage levels. With its high-speed data transmission, wide operating voltage range, and robust protection features, it is well-suited for various applications in different industries.