The SP3222EUEA-L/TR is a 3.0V to 5.5V RS-232 transceiver solution from Exar Corporation. This device integrates two RS-232 transmitters and two RS-232 receivers into a single IC, making it ideal for applications requiring a compact and efficient serial communication interface. It is designed to meet the needs of portable or handheld applications where power consumption is a key consideration. The SP3222EUEA-L/TR adheres to the TIA/EIA-232-F standard.

Applications:

• Notebook and laptop computers
• Sub-notebooks
• Palmtop PCs
• Handheld devices
• PDAs
• Battery-powered equipment

Features:

• Meets all ElA-232E and V.28 specifications
• Operates from a single 3.0V to 5.5V power supply
• Low power consumption: ICC=300µA typical
• High data rates: Up to 250kbps
• Small outline packaging
• Two drivers and two receivers
• Internal charge pump requires only 0.1µF capacitors
• Latch-up free operation

Benefits:

• Reduced power consumption: Extends battery life in portable applications.
• Space saving: Integrated design reduces board space requirements.
• Reliable communication: Meets industry standards for RS-232 communication.
• Ease of use: Requires minimal external components, simplifying design and reducing BOM cost.
• Fast data transfer: Supports data rates up to 250kbps for quick and efficient serial communication.

Additional Details:

The SP3222EUEA-L/TR utilizes an internal charge pump to generate the necessary voltage levels for RS-232 communication from a single 3.0V to 5.5V power supply. This eliminates the need for external high-voltage power supplies, simplifying the design and reducing the overall system cost. The device is available in a small outline package, making it suitable for space-constrained applications. The L/TR suffix typically indicates tape and reel packaging for automated assembly.

The internal charge pump requires only small 0.1µF capacitors, minimizing the board space occupied by external components. The device also features latch-up free operation, enhancing reliability and preventing damage due to overvoltage conditions. With its low power consumption, compact size, and robust performance, the SP3222EUEA-L/TR is a suitable choice for a variety of RS-232 communication applications.