The ST3243CDR from STMicroelectronics is a robust RS-232 transceiver designed to operate with a voltage range from 3V to 5.5V while maintaining compatibility with the RS-232 standard. It is specifically engineered for portable or space-constrained applications, such as mobile phones, communication peripherals, and battery-powered devices, where power efficiency is a critical factor.

Key Features

• Low Power Consumption: The device features a low-power shutdown mode, which significantly reduces power consumption when not in active use.
• High Data Rate: Capable of handling data rates up to 400kbps, this transceiver is suitable for applications requiring moderate speed data transmission.
• Auto-Powerdown Function: The ST3243CDR includes an automatic power-down feature that minimizes power usage when no valid RS-232 levels are present on the receiver inputs.
• ESD Protection: It offers ESD protection of ±15kV on the transceiver's input and output pins, ensuring reliability and robustness in harsh environments.
• Dual Charge Pump: The integrated dual charge pump circuitry allows the transceiver to deliver true RS-232 voltage levels (+/- 5.5V) from a single power supply ranging from 3V to 5.5V.

Applications

• Battery-Powered Systems
• Portable Computing Devices
• PDAs and Smartphones
• Data Cables
• Point-of-Sale Systems

Package and Quality

The ST3243CDR is supplied in a compact 20-pin SSOP package that is both space-saving and suitable for automated assembly processes. STMicroelectronics ensures high-quality standards, with each device being rigorously tested to meet the stringent requirements of the electronics industry.

Ordering Information

The product is available for order under the part number ST3243CDR. For detailed specifications, application notes, and further information, customers can visit the STMicroelectronics website or contact their sales representative.