The SP202ECP is a RS-232 transceiver manufactured by Exar Corporation. It is designed to provide a reliable interface between a microcontroller or processor and an external device using the RS-232 communication standard. The device operates from a single 5V power supply, and integrates charge pump circuitry, generating the ±10V RS-232 voltage levels required for proper communication.

Applications

• Notebook Computers: Used to establish serial communication in laptop devices.
• Sub-Notebooks: Integrated into compact sub-notebook computers for RS-232 connectivity.
• Palmtop PCs: Offers a serial interface for handheld computing devices.
• Battery Powered Systems: Suitable for low-power operation in portable applications.
• Printers: Facilitates serial communication between computers and printers.
• Peripherals: Used to connect various peripherals to a host system via RS-232.

Features

• Single 5V Power Supply: Runs off a single 5V power source, simplifying power supply requirements.
• Meets all RS-232D and ITU V.28 Specifications: Complies with industry-standard RS-232 communication protocol specifications.
• Output Swing ±10V with 5V Supply: Generates necessary voltage levels for RS-232 communication from a single 5V input.
• Low Power Consumption: Reduces power usage, making it suitable for battery-powered applications.
• Internal Tiny Charge Pump: Includes integrated charge pump circuitry to generate required voltage levels.
• High Data Rate: Supports data rates up to 120kbps.
• Latch-Up Free: Designed to prevent latch-up, ensuring reliability.

Benefits

• Simplified System Design: Only requires a single 5V power supply, reducing the complexity of power supply design.
• Reliable Communication: Ensures reliable data transmission by adhering to RS-232 standards.
• Extended Battery Life: Low power consumption extends battery life in portable devices.
• Compact Solution: The integrated charge pump minimizes the need for external components, saving space.
• Robust Performance: Latch-up free design guarantees reliable operation even in potentially unstable conditions.
• Versatile Connectivity: Compatible with a broad array of RS-232 compatible devices.

Additional Details

The SP202ECP usually comes in a DIP package. It contains two drivers and two receivers, allowing for full-duplex communication. The transceiver is best suited for environments where reliable and compliant RS-232 interfacing is needed with minimal power usage. Consult the device datasheet for specific operating temperature ranges and electrical characteristics.