The ST3232C is a robust, low power transceiver for RS-232 communication from STMicroelectronics. This device is designed to meet the requirements for data transmission with minimal power consumption, making it ideal for battery-powered applications. The ST3232C operates with a supply voltage range from 3V to 5.5V, allowing it to be used in diverse system designs.
With its two driver/receiver pairs, the ST3232C is capable of running at data signaling rates up to 250 kbps while maintaining RS-232 output levels. This transceiver is equipped with a proprietary low-dropout transmitter output stage, providing true RS-232 performance from a 3.0V to 5.5V supply with a dual charge pump. The charge pump requires only four small 0.1µF external capacitors for operation from a 3.3V supply.
One of the key features of the ST3232C is its Enhanced ESD protection which allows it to withstand up to ±15kV on the human body model and ±8kV using the IEC 1000-4-2 contact discharge model. This makes the ST3232C particularly suitable for industrial environments where electrostatic discharge (ESD) can be a significant issue.
The transceiver also includes an automatic power-down feature that powers down the on-chip power-supply and driver circuits when a connected peripheral is turned off or the RS-232 cable is removed, ensuring minimal power consumption in standby mode. This feature is particularly useful for portable applications where conserving battery life is critical.
Moreover, the ST3232C is designed to be interoperable with existing ST transceiver families and industry standards, ensuring easy integration into current designs. It is available in a variety of packages, including SO-16, TSSOP-16, and SSOP-16, providing flexibility for different PCB layouts.
In summary, the ST3232C from STMicroelectronics is a versatile, low-power RS-232 transceiver that offers robust performance for industrial and portable applications. Its ESD protection, low-power consumption, and small external component requirements make it a reliable and economical choice for designers.
