The SP202EET-L/TR is an RS-232 transceiver manufactured by Exar Corporation, designed for serial communication applications. It acts as a reliable interface between a microcontroller or processor and an external device that uses the RS-232 standard. This transceiver operates from a single 5V power supply, and it integrates charge pump circuitry to generate the necessary ±10V RS-232 voltage levels from the 5V supply. The "-L" likely denotes a low-power version, while the "/TR" often indicates tape and reel packaging for automated assembly processes.

Applications

• Notebook Computers: Facilitates serial communication in portable computing devices.
• Sub-Notebooks: Supports RS-232 connectivity in compact devices.
• Palmtop PCs: Provides a serial interface for handheld computers.
• Battery Powered Systems: Particularly suitable due to its low power consumption.
• Printers: Used for serial communication between computers and printers.
• Peripherals: Enables the connection of various peripherals to a host system.

Features

• Single 5V Power Supply: Operates from a single 5V power source, which simplifies the power supply requirements.
• Meets all RS-232D and ITU V.28 Specifications: Complies with industry standards for RS-232 communication, ensuring compatibility.
• Output Swing ±10V with 5V Supply: Generates the necessary voltage levels for RS-232 communication from a single 5V input.
• Low Power Consumption: Minimizes power usage, making it ideal for battery-powered applications.
• Internal Tiny Charge Pump: Integrates charge pump circuitry to generate the required voltage levels efficiently.
• High Data Rate: Supports data rates up to 120kbps for fast and reliable communication.
• Latch-Up Free: Resistant to latch-up, thus enhancing the reliability and stability of the device.

Benefits

• Simplified System Design: Only needs a single 5V power supply, reducing the complexity of the system's power design.
• Reliable Communication: Adheres to RS-232 standards, ensuring reliable data transmission between devices.
• Extended Battery Life: The low power consumption contributes to extending the battery life in portable devices.
• Compact Solution: With its integrated charge pump, it reduces the need for external components, saving valuable board space.
• Robust Performance: The latch-up free design ensures reliable and stable operation in a variety of environments.
• Versatile Connectivity: Enables seamless connection to a wide range of RS-232 compatible devices.

Additional Details

The SP202EET-L/TR is typically available in a SOIC package. It features two drivers and two receivers, which allows for full-duplex communication. Its low-power nature makes it particularly suitable for use in battery-powered equipment. For detailed electrical characteristics and operating temperature ranges, refer to the official datasheet.