The TRS3221ECDBR is a high-performance RS-232 line driver/receiver from Texas Instruments, designed to meet the requirements of modern serial communication systems. This integrated circuit provides a robust interface between the serial port of a microcontroller or digital system and a standard RS-232 serial device, such as a modem, printer, or data terminal.

Key Features

• Electrostatic Discharge (ESD) Protection: The TRS3221ECDBR is equipped with ESD protection circuitry that exceeds ±15kV using the IEC 61000-4-2 Air-Gap Discharge method and ±8kV using the IEC 61000-4-2 Contact Discharge method, ensuring durability and reliability in harsh environments.
• Low Power Consumption: With an operational supply voltage ranging from 3V to 5.5V, this device is optimized for low-power operation, making it suitable for battery-powered and portable applications.
• Integrated Charge Pump: The built-in charge pump circuitry allows the TRS3221ECDBR to generate the necessary RS-232 voltage levels (±5.5V) from a single power supply, simplifying design and reducing component count.
• High Data Rate: Capable of supporting data rates up to 250 kbps, this line driver/receiver is suitable for high-speed data communication.
• Small Package Size: Offered in a compact SSOP (Shrink Small Outline Package), the TRS3221ECDBR is ideal for space-constrained applications.

Applications

The versatility of the TRS3221ECDBR makes it an excellent choice for a wide range of applications, including:

• Portable and battery-powered devices
• Point-of-sale (POS) terminals
• Industrial control systems
• Data acquisition equipment
• Medical equipment

Ordering and Packaging Information

The TRS3221ECDBR is available in a 16-pin SSOP package and is sold in tape and reel form to facilitate automated assembly processes. For ordering, pricing, and detailed specifications, please visit the Texas Instruments website or contact an authorized distributor.