The SP3243EET/TR is an RS-232 transceiver manufactured by Exar Corporation. It is designed for applications requiring serial communication, offering a convenient interface between RS-232 voltage levels and TTL/CMOS logic. This particular model is supplied in Tape and Reel packaging (TR) for automated assembly processes.

Applications

• Notebook and Laptop Computers
• Sub-Notebooks
• Palmtop Computers
• Handheld PCs
• Cellular Phones
• Battery-Powered Equipment
• Peripherals
• Printers

Features

• Meets all ElA-232E and ITU V.28 specifications
• Operates from a single +3.0V to +5.5V power supply
• Requires only 0.1μF charge pump capacitors
• High data rate – 120kbps under load
• Low power shutdown mode (typically 1μA)
• Output swing limit of ±8V
• Enhanced ESD specifications: ±15kV Human Body Model
• Two drivers and two receivers
• Tape and Reel packaging (TR)

Benefits

• Simplified RS-232 Interface: Facilitates easy connection between microcontrollers and RS-232 serial ports.
• Low Power Consumption: Ideal for battery-operated devices due to its low-power shutdown mode.
• Compact Design: The integrated design minimizes the required board space.
• High ESD Protection: Ensures reliable performance in environments with potential electrostatic discharge.
• Flexible Operating Voltage: The wide operating voltage range allows for greater design flexibility.
• Automated Assembly: Tape and Reel packaging is suitable for automated pick-and-place assembly.

The SP3243EET/TR operates from a single +3.0V to +5.5V power supply, utilizing small 0.1μF external charge pump capacitors. It is capable of transmitting data at rates up to 120kbps while maintaining RS-232 signal levels. The device includes a low-power shutdown mode that reduces supply current to a typical 1μA, extending battery life. The Tape and Reel (TR) packaging makes it suitable for high-volume automated assembly processes.

The SP3243EET/TR provides a reliable and efficient RS-232 serial communication solution, particularly well-suited for portable applications and automated manufacturing environments.