MAX3226EAE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: RS-232 Transceiver
• Characteristics:
  • Low-power, high-speed transceiver
  • Supports data rates up to 1 Mbps
  • Operates from a single 3.0V to 5.5V supply
  • Compatible with TIA/EIA-232-F and ITU V.28 standards
• Package: 16-pin SSOP (Shrink Small Outline Package)
• Essence: Provides bidirectional level shifting between TTL logic levels and RS-232 voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 3.0V to 5.5V
• Data Rate: Up to 1 Mbps
• Number of Channels: 1
• Operating Temperature Range: -40°C to +85°C
• Package Type: SSOP
• Pin Count: 16

Detailed Pin Configuration

The MAX3226EAE+T has the following pin configuration:

| Pin No. | Name | Description | |---------|------|-------------| | 1 | VCC | Power Supply Voltage | | 2 | GND | Ground | | 3 | C1IN | Capacitor Connection for Charge Pump 1 | | 4 | C1OUT| Capacitor Connection for Charge Pump 1 | | 5 | R1IN | Resistor Connection for Charge Pump 1 | | 6 | R1OUT| Resistor Connection for Charge Pump 1 | | 7 | T1IN | Transmit Input for Channel 1 | | 8 | R1IN | Receive Output for Channel 1 | | 9 | T1OUT| Transmit Output for Channel 1 | | 10 | R1OUT| Receive Input for Channel 1 | | 11 | T2IN | Transmit Input for Channel 2 (Not Used in MAX3226EAE+T) | | 12 | R2IN | Receive Output for Channel 2 (Not Used in MAX3226EAE+T) | | 13 | T2OUT| Transmit Output for Channel 2 (Not Used in MAX3226EAE+T) | | 14 | R2OUT| Receive Input for Channel 2 (Not Used in MAX3226EAE+T) | | 15 | SHDN | Shutdown Control Input | | 16 | VCC | Power Supply Voltage |

Functional Features

• Bidirectional voltage level translation between TTL logic levels and RS-232 voltage levels
• Integrated charge pump circuitry eliminates the need for external capacitors
• Low-power shutdown mode with less than 1µA supply current
• ESD protection on RS-232 I/O pins

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows compatibility with various systems - High-speed data transmission up to 1 Mbps - Integrated charge pump simplifies design and reduces component count - Low-power shutdown mode helps conserve energy - ESD protection ensures robustness in harsh environments

Disadvantages: - Limited to a single channel, not suitable for applications requiring multiple channels - Not compatible with higher RS-232 voltage levels (e.g., ±12V)

Working Principles

The MAX3226EAE+T is a transceiver IC that facilitates bidirectional communication between devices operating at TTL logic levels and those using RS-232 voltage levels. It achieves this by employing an integrated charge pump circuitry that generates the necessary voltage levels for RS-232 communication.

When transmitting data, the TTL logic level signals are converted to RS-232 voltage levels using the charge pump circuitry. On the receiving end, the RS-232 voltage levels are translated back to TTL logic levels.

The IC also features a shutdown control input (SHDN) that allows the device to enter a low-power mode when not in use, reducing power consumption.

Detailed Application Field Plans

The MAX3226EAE+T is commonly used in various applications, including:

1. Industrial Automation: Enables communication between microcontrollers and industrial equipment using RS-232 interfaces.
2. Networking Equipment: Facilitates serial communication between routers, switches, and other network devices.
3. Point-of-Sale Systems: Connects cash registers, barcode scanners, and receipt printers to the main system.
4. Medical Devices: Provides RS-232 connectivity for medical equipment such as patient monitors and diagnostic devices.
5. Consumer Electronics: Used in devices like set-top boxes, gaming consoles, and home automation systems for serial communication.

Alternative Models

1. MAX3232EAE+T: Similar to MAX3226EAE+T but with two channels instead of