ST3222 - Low Power 3.0 to 5.5V, 400kbps, RS-232 Drivers/Receivers

The ST3222 from STMicroelectronics is a robust, low-power transceiver for RS-232 communication that operates from a single 3.0 to 5.5V power supply. This device is designed to provide bidirectional serial communication in accordance with the RS-232 standard, which is widely used in serial port communications for modems, printers, and a variety of microcontroller-based applications.

Key Features

• Low Power Consumption: The ST3222 is optimized for low-power consumption, making it ideal for battery-powered applications, with a typical operating current of only 300µA and a low-power shutdown mode that reduces the current to a mere 1nA.
• High Data Rate: Capable of supporting data rates up to 400kbps, this transceiver can handle high-speed data transmission while maintaining signal integrity and reliability.
• Enhanced ESD Protection: The device includes an integrated ESD protection circuitry, which provides a high level of protection against electrostatic discharge, ensuring the longevity and reliability of the device in harsh environments.
• Wide Operating Voltage Range: With the ability to operate across a wide range of voltages from 3.0V to 5.5V, the ST3222 is versatile and can be used in diverse systems without requiring complex power management.

Applications

The ST3222 is suitable for a variety of applications where RS-232 communication is required. This includes:

• Battery-Powered Systems
• Portable Instrumentation
• Notebook, Laptop, and Palmtop Computers
• Peripherals and Printers

With its low-power operation and high-speed data transfer capabilities, the ST3222 is an excellent choice for designers looking to implement efficient and reliable RS-232 communication in their products. Its small footprint and integrated protection features also make it a practical choice for space-constrained applications requiring robust performance.