The ST3232CWR from STMicroelectronics is a robust, low-power transceiver for RS-232 communication that operates from a single 3V to 5.5V power supply. This makes it an ideal choice for portable or battery-operated applications where power efficiency is crucial. The device is designed to provide bidirectional serial communication according to the RS-232 standard while maintaining the necessary level shifting to protect low-voltage circuits.

Key Features

• Low Power Consumption: The ST3232CWR is optimized for low-power operation, drawing just 300µA of supply current when unloaded or fully loaded with the drivers disabled.
• High Data Rate: Capable of operating at data rates of up to 400kbps, this transceiver is suitable for a variety of high-speed serial data communication applications.
• Enhanced ESD Protection: It features an ESD protection level of ±15kV for both human body model (HBM) and IEC 1000-4-2 air discharge method, ensuring reliability and robustness in harsh environments.
• Dual Driver/Receiver Operation: This device includes two drivers and two receivers, allowing for full-duplex communication.
• Low Dropout Voltage: The low dropout transmitter output stage enables true RS-232 performance from a 3.0V to 5.5V supply with a dual charge pump.

Applications

The ST3232CWR is ideally suited for a variety of applications that require reliable RS-232 communication. These include:

• Portable or Compact Devices
• Battery-Powered Equipment
• Notebooks, Laptops, and PDAs
• Peripherals
• Printers
• Data Cables

Package Details

The device is offered in a wide temperature range and is available in a 20-pin TSSOP package, which is suitable for space-constrained applications. The ST3232CWR's small footprint, combined with its advanced features, makes it an excellent choice for designers looking to integrate RS-232 communication capabilities into their designs without compromising on space or power efficiency.

For further information and complete technical specifications, designers and engineers should consult the datasheet and product support documentation available from STMicroelectronics.