ST3241ECPR - Low Power 3 to 5.5V, 400kbps RS-232 Transceiver with Auto-Powerdown

The ST3241ECPR is a robust, low power transceiver for RS-232 communication from STMicroelectronics. This device is specifically designed to meet the stringent power requirements of battery-operated portable devices by featuring a low-power shutdown mode and an automatic powerdown function that powers down the on-chip power-supply and driver circuits when a connected peripheral is not in use.

Operating between 3V to 5.5V, the ST3241ECPR can handle data rates up to 400kbps, making it suitable for a variety of applications that require efficient data transfer, such as GPS receivers, portable instrumentation, and mobile communication. The chip includes three drivers and five receivers, providing a versatile interface for multiple data lines.

The receivers can remain active in shutdown mode, allowing the device to monitor for incoming data while consuming minimal power. Enhanced electrostatic discharge (ESD) protection is built-in, with the transceiver able to withstand ±15kV human body model discharges, ensuring reliability and robustness in harsh environments.

The ST3241ECPR comes in a 28-pin TSSOP package, offering a compact solution that is easy to integrate into system designs. Its low supply current, typically 1µA in shutdown mode, further enhances its appeal for power-sensitive applications.

The device's auto-powerdown feature, which activates when the RS-232 cable is disconnected or the connected peripherals are turned off, helps to extend the battery life of the end product. Additionally, the ST3241ECPR is fully compatible with the EIA/TIA-232-F standards and ITU V.28 specifications.

In summary, the ST3241ECPR from STMicroelectronics is an efficient, reliable, and feature-rich RS-232 transceiver that is ideal for designers looking to implement serial communication in power-conscious portable devices.