The SP235ACP is a RS-232 transceiver from Exar Corporation. This component is designed to facilitate serial communication between devices by converting single-ended signals to RS-232 voltage levels and vice versa.

Applications

• Connecting legacy serial devices to modern computer systems.
• Use in industrial control systems for serial communication with PLCs and HMIs.
• Communication with serial printers and plotters.
• Linking embedded systems to external devices for data transfer and control.
• Diagnostic ports on electronic equipment.

Features

• Single +5V power supply operation.
• Integrated charge pump to generate RS-232 voltage levels.
• Meets EIA/TIA-232 and V.28/V.24 standards.
• Requires minimal external components (typically only capacitors).
• Data rates up to 120 kbps.
• Low power consumption.
• Available in various package types including DIP and SOIC.

Benefits

• Simplified design with minimal external components.
• Easy integration into existing systems.
• Reliable serial communication with robust RS-232 voltage levels.
• Cost-effective solution for legacy serial device connectivity.
• Reduced board space requirements due to compact package options.
• Energy-efficient operation for battery-powered applications.

Technical Specifications

The SP235ACP transceiver operates from a single +5V power supply, internally generating the necessary ±10V RS-232 voltage levels via a charge pump. It is compliant with EIA/TIA-232 and V.28/V.24 standards, ensuring compatibility with a wide range of serial devices. The device supports data rates up to 120 kbps. External components are minimized, typically requiring only four small capacitors for charge pump operation. The SP235ACP comes in various package options including DIP and SOIC. Detailed electrical characteristics, timing diagrams, and application circuits can be found in the device datasheet.