STMicroelectronics ST3232BDR RS232 Transceiver IC, 2 Drivers, SOIC-16, SMD

The STMicroelectronics ST3232BDR is a high-performance EIA/TIA-232 and V.28/V.24 communication interface transceiver, integrating both driver and receiver functions. Designed with low power consumption in mind, it features a proprietary low-dropout transmitter output stage that delivers true RS-232 signal performance from a single 3V to 5.5V power supply. This efficient design requires only four small 0.1µF standard external capacitors for stable operation from a 3V supply, simplifying circuit design and reducing board space.

This device is guaranteed to operate at data rates up to 250kbps while maintaining compliant RS-232 output levels. Key performance specifications include a typical supply current of just 300µA, a minimum guaranteed data rate of 300kbps, and a minimum guaranteed slew rate of 6V/µs, ensuring reliable and robust serial communication.

Housed in a compact SOIC-16 surface-mount package, it is ideal for space-constrained applications. The transceiver operates reliably across a wide temperature range from -40°C to 85°C, making it suitable for use in demanding industrial and commercial environments.

Key Features

• Proprietary low-dropout transmitter for true RS-232 performance from 3–5.5V.
• Very low 300µA typical supply current for power-sensitive designs.
• High data-rate capability, guaranteed for 250kbps operation.
• Requires minimal external components (four 0.1µF capacitors).
• Robust SOIC-16 SMD package for reliable PCB mounting.

The ST3232BDR provides a compact, efficient, and reliable solution for implementing RS-232 serial communication interfaces in modern electronic designs.