TL28L92IFR

Overview

The TL28L92IFR is a dual universal asynchronous receiver/transmitter (DUART) manufactured by Texas Instruments. It integrates two independent serial communication channels within a single integrated circuit, supporting standard RS-232 and RS-422/RS-485 interface protocols. The device operates with a supply voltage range of 3.0 V to 5.5 V and features low power consumption suitable for battery-operated applications. Each channel includes a full-rate baud rate generator, allowing flexible clocking configurations. The component is housed in an 18-pin Small Outline Package (SOIC) with a wide body, designed for surface-mount technology assembly.

Feature Summary

• Dual independent UART channels enabling simultaneous bidirectional data transfer
• Integrated full-rate baud rate generators for flexible clocking options
• Supports standard asynchronous serial communication protocols

Applications

• Industrial control systems requiring multiple serial connections
• Embedded systems with limited pin counts needing dual UART functionality
• Portable electronic devices utilizing battery power sources

Procurement Notes

Verify the specific suffix 'IFR' against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints and reflow soldering profiles defined for the SOIC-18 wide body package. Cross-reference the ordering part number with current datasheets to validate active status and availability.

Selection Notes

Select this component when a design requires two independent serial ports within a compact footprint. Consider the operating voltage range and baud rate requirements relative to the system clock. Evaluate the thermal performance and power dissipation characteristics under maximum load conditions to ensure reliable operation within the specified temperature range.

Part Context

This component belongs to the TL28L9x family of dual UARTs from Texas Instruments. It serves as a legacy interface solution for microcontrollers lacking sufficient built-in serial peripherals. The device provides a cost-effective alternative to using separate single UART ICs, reducing board space and simplifying routing in dense circuit designs.

Replacement Considerations

Publicly confirmed substitute part numbers include the TL28C92IFR. Verify electrical parameter equivalence and pinout compatibility before implementation. Note that some users have reported baud rate discrepancies when substituting similar models in specific high-speed configurations.