STMICROELECTRONICS ST3232CDR RS232 Transceiver IC, 2 Drivers, SOIC-16

The STMICROELECTRONICS ST3232CDR is a 3V to 5.5V powered RS-232 driver and receiver, designed to meet EIA/TIA-232 and V.28/V.24 communication standards. Its proprietary low-dropout transmitter output stage delivers genuine RS-232 performance across the entire supply voltage range, making it exceptionally versatile for modern low-voltage systems.

This transceiver stands out for its low power consumption and high data-rate capabilities, requiring only four small 0.1µF external capacitors to operate from a 3V supply. It is guaranteed to maintain proper RS-232 output levels at data rates up to 250kbps, ensuring reliable and robust serial communication. The device is housed in a compact TSSOP16/SOIC-16 package and is specified for operation across a 0°C to 70°C industrial temperature range.

Key Specifications and Performance

• Supply Voltage: 3V to 5.5V.
• Power Consumption: Typical VCC supply current of just 0.3mA under no-load conditions.
• High-Speed Data: Supports a minimum data transfer rate of 300kbps, with a maximum capability of 400kbps.
• Driver/Receiver Configuration: Features 2 transmitters and 2 receivers.
• Robust Design: Offers a high output short-circuit current tolerance of ±60mA maximum.
• Fast Switching: Provides a rapid transition slew rate of 6V/µs minimum and a low propagation delay of 0.2µs typical.

Typical Applications

Its efficient power profile and small footprint make the ST3232CDR an ideal choice for a wide array of portable and power-sensitive electronics. It is perfectly suited for integration into notebooks, subnotebooks, palmtop and handheld computers, battery-powered equipment, printers, and various peripheral devices.