ICL3226EIAZ

Product Overview

Category: Integrated Circuit (IC)

Use: The ICL3226EIAZ is a high-speed, low-power, 3.3V RS-232 transceiver IC. It is designed to facilitate bidirectional communication between TTL/CMOS logic levels and RS-232 interface signals.

Characteristics: - High-speed data transmission - Low power consumption - Wide operating voltage range (2.7V to 5.5V) - ESD protection for RS-232 I/O pins - Small package size - RoHS compliant

Package: The ICL3226EIAZ is available in a small outline integrated circuit (SOIC) package.

Essence: This IC acts as an interface between devices operating at TTL/CMOS logic levels and those using RS-232 communication protocol. It enables seamless data transfer between these two different signal types.

Packaging/Quantity: The ICL3226EIAZ is typically sold in reels or tubes, containing a specified quantity of ICs per package.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Data Rate: Up to 1Mbps
• Number of Channels: 2
• Operating Temperature Range: -40°C to +85°C
• ESD Protection: ±15kV (Human Body Model)
• Package Type: SOIC-16

Pin Configuration

The ICL3226EIAZ has a total of 16 pins, which are assigned specific functions as follows:

| Pin No. | Name | Function | |---------|------|----------| | 1 | VCC | Power supply voltage input | | 2 | GND | Ground reference | | 3 | T1IN | TTL/CMOS logic level input for Channel 1 | | 4 | R1OUT| RS-232 output for Channel 1 | | 5 | T1OUT| RS-232 input for Channel 1 | | 6 | R1IN | TTL/CMOS logic level output for Channel 1 | | 7 | R2IN | TTL/CMOS logic level output for Channel 2 | | 8 | T2OUT| RS-232 input for Channel 2 | | 9 | R2OUT| RS-232 output for Channel 2 | | 10 | T2IN | TTL/CMOS logic level input for Channel 2 | | 11 | NC | No connection | | 12 | NC | No connection | | 13 | NC | No connection | | 14 | NC | No connection | | 15 | NC | No connection | | 16 | NC | No connection |

Functional Features

• Bidirectional voltage-level translation between TTL/CMOS and RS-232 signals.
• Automatic power-down mode when no communication is detected, reducing power consumption.
• Enhanced ESD protection for robust operation in harsh environments.
• Supports data rates up to 1Mbps, enabling high-speed data transfer.

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows compatibility with various systems. - Low power consumption makes it suitable for battery-powered devices. - Small package size saves board space. - ESD protection ensures reliability in challenging conditions. - High-speed data transmission enables efficient communication.

Disadvantages: - Limited number of channels (2) may not be sufficient for applications requiring multiple simultaneous connections. - Requires external capacitors for proper operation, adding complexity to the design.

Working Principles

The ICL3226EIAZ operates by converting TTL/CMOS logic level signals to RS-232 voltage levels and vice versa. It utilizes internal charge pumps to generate the required RS-232 voltages from the lower TTL/CMOS logic levels. The bidirectional communication is achieved through a combination of transmitters, receivers, and control circuitry.

Detailed Application Field Plans

The ICL3226EIAZ finds applications in various fields, including but not limited to: 1. Industrial automation systems 2. Point-of-sale terminals 3. Networking equipment 4. Medical devices 5. Consumer electronics

In industrial automation systems, it can be used for connecting programmable logic controllers (PLCs) to RS-232 devices. Point-of-sale terminals benefit from its ability to interface with barcode scanners and receipt printers. Networking equipment such as routers and switches utilize this IC for serial communication. Medical devices like patient monitors often require RS-232 connectivity, which can be achieved using the ICL3226EIAZ. Lastly, consumer electronics such as set-top boxes and gaming consoles may incorporate this IC for RS-232 communication with external peripherals.

Detailed and