The SP3232UCA is a RS-232 transceiver from Exar Corporation. This device is designed to meet the demanding requirements of serial communication in various applications. It integrates two drivers and two receivers into a single chip, offering a compact and efficient solution for converting between RS-232 voltage levels and TTL/CMOS logic levels.

Applications

• Notebook and Laptop Computers
• Sub-Notebooks
• Palmtop Computers
• Handheld PCs
• 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
• Available in SOIC and SSOP packages
• Enhanced ESD specifications: ±15kV Human Body Model

Benefits

• Simplified RS-232 Interface: The SP3232UCA simplifies the interface between a microcontroller or other digital device and an RS-232 serial port.
• Low Power Consumption: Its low power design, including a shutdown mode, makes it ideal for battery-powered applications.
• Space Saving: Integration of two drivers and two receivers minimizes board space requirements.
• ESD Protection: Enhanced ESD protection ensures robust operation in harsh environments.
• Wide Operating Voltage: The wide operating voltage range provides flexibility in system design.

The SP3232UCA operates from a single +3.0V to +5.5V power supply and requires only four small 0.1μF external charge pump capacitors. It transmits at data rates up to 120kbps while maintaining RS-232 signal levels. The device also features a low-power shutdown mode, which reduces supply current to a typical 1μA. This transceiver is available in both SOIC and SSOP packages, offering flexibility in mounting options.

The SP3232UCA is a reliable and efficient solution for RS-232 serial communication in a wide range of applications, particularly those requiring low power consumption and a small footprint.