STMICROELECTRONICS RS-232 Transceiver IC, 5V, 16-SOIC

The STMICROELECTRONICS ST232CDR is a versatile 5V-powered multi-channel RS-232 driver and receiver. This integrated circuit is a compact 2-driver, 2-receiver device designed to comply with the EIA/TIA-232 and V.28 communication standards. Its primary advantage is its ability to operate from a single 5V power supply, making it an ideal solution for applications where traditional ±12V power rails are unavailable.

For ease of use, the device requires only four small external 0.1µF capacitors. This low external component count, combined with its controlled output slew rate and compatibility with industry-standard parts like the MAX232 and MAX202, simplifies design-in and reduces overall system footprint. The device is engineered for efficiency, with a typical VCC supply current of just 5mA under no-load conditions.

Key Performance and Specifications

• Supply Voltage: Operates from a 4.5V to 5.5V range.
• Output Voltage Swing: Delivers a typical ±7.8V output, suitable for robust RS-232 signal levels.
• High Receiver Input Range: Can tolerate input voltages up to ±30V, offering excellent noise immunity.
• Data Rate: Supports data transmission rates up to 220 kbits/s typically.
• Package: Housed in a space-saving 16-pin SOIC (Small Outline Integrated Circuit) package.
• Operating Temperature: Designed for a commercial temperature range of 0°C to 70°C.

This transceiver is a reliable and efficient choice for modern serial communication interfaces, balancing performance with low power consumption.