TRSF3243IDBR

Drivers, Receivers, Transceivers Overview

The TRSF3243IDBR is a dual RS-232 port transceiver manufactured by Texas Instruments, designed for operation with single 3.3-V or 5-V power supplies. It integrates charge pumps to generate the necessary voltages for RS-232 signaling without requiring external capacitors. The device features three drivers and ten receivers, supporting data rates up to 250 kbps. It operates within an industrial temperature range of -40°C to +85°C and is housed in a 48-pin SSOP package.

Drivers, Receivers, Transceivers Feature Summary

• Dual-port architecture providing independent control over two RS-232 channels
• Integrated charge pump circuitry eliminates the need for external flying capacitors
• Auto-powerdown feature reduces current consumption during idle periods
• High ESD protection ratings ensure robustness against electrostatic discharge events

Drivers, Receivers, Transceivers Applications

• Industrial automation systems requiring multiple serial communication links
• Medical equipment needing reliable RS-232 connectivity
• Point-of-sale (POS) terminals with dual peripheral interfaces
• Embedded controllers managing multiple serial devices

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix IDBR corresponds to the tape-and-reel packaging variant when ordering. Confirm that the 48-pin SSOP footprint matches the target PCB layout. Ensure the design supports the required 3.3-V or 5-V supply rails as specified in the datasheet electrical characteristics.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a dual-port solution is required to minimize board space compared to using two separate single-port transceivers. The integrated charge pump simplifies the bill of materials by removing external capacitor requirements. Verify that the 250 kbps data rate meets the application's throughput needs before finalizing the selection.

Drivers, Receivers, Transceivers Part Context

This part belongs to the TRSF232xx family of dual-port RS-232 transceivers from Texas Instruments. It shares functional similarities with the TRSF23243 but differs in pin count and configuration. The family is designed to replace legacy discrete solutions in compact embedded designs.

Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other dual-port RS-232 transceivers from Texas Instruments such as the TRSF23243, provided the pinout and package compatibility are verified. Cross-vendor replacements require careful evaluation of charge pump topology and ESD protection levels.