STMicroelectronics

ST232CTR

ST232CTR Description

The ST232CTR from STMicroelectronics is a full-duplex RS-232 transceiver designed for robust serial communication in industrial and consumer applications. Housed in a compact 16-pin TSSOP package with tape-and-reel (TR) packaging, it integrates two drivers and two receivers, supporting data rates up to 220Kbps. Operating within a 4.5V to 5.5V supply range, it ensures reliable performance across a 0°C to 70°C temperature range. Compliant with ROHS3 and REACH standards, the ST232CTR is ideal for modern electronics requiring low-power, surface-mount solutions.

ST232CTR Features

• Full-duplex communication: Enables simultaneous transmission and reception for efficient data exchange.
• 500mV receiver hysteresis: Enhances noise immunity in electrically noisy environments.
• Wide supply voltage range (4.5V–5.5V): Compatible with standard 5V logic systems.
• 220Kbps data rate: Suitable for mid-speed serial communication protocols.
• Surface-mount (TSSOP-16) packaging: Optimized for space-constrained PCB designs.
• RoHS3 and REACH compliant: Meets stringent environmental and safety regulations.
• Moisture Sensitivity Level (MSL) 1: No baking required, simplifying storage and handling.

ST232CTR Applications

The ST232CTR excels in systems requiring RS-232 level shifting and signal conditioning, such as:

• Industrial automation: PLCs, motor controllers, and sensor interfaces.
• Consumer electronics: Point-of-sale (POS) terminals, barcode scanners.
• Embedded systems: Microcontroller-to-PC communication, legacy device interfacing.
• Telecom equipment: Modems, routers, and legacy serial ports.
  Its high noise immunity and compact form factor make it particularly suitable for harsh environments where space and reliability are critical.

Conclusion of ST232CTR

The ST232CTR stands out as a cost-effective, high-performance RS-232 transceiver, combining robust electrical characteristics with ease of integration. Its full-duplex operation, wide voltage tolerance, and compliance with environmental standards make it a versatile choice for designers seeking a reliable solution for serial communication. Whether in industrial, consumer, or embedded applications, the ST232CTR delivers consistent performance while adhering to modern manufacturing and sustainability requirements.