XR16L2551IL-F

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16L2551IL-F is a dual UART interface integrated circuit manufactured by MaxLinear. It features two independent channels, each equipped with a 16-byte transmit and receive FIFO buffer to enhance data throughput. The device supports data rates up to 3.125 Mb/s and operates within a supply voltage range of 2.25 V to 5.5 V, compatible with 2.5 V, 3.3 V, and 5 V systems. It is housed in a 32-pin QFN package (5x5 mm) suitable for surface mount installation. The component functions across an industrial temperature range from -40°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual UART architecture with dedicated 16-byte FIFOs per channel for efficient data buffering
• Supports both Intel and Motorola bus protocols for flexible system integration
• Integrated power save mode to reduce operational current consumption
• Includes internal oscillator and timer/counter capabilities

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation control systems requiring serial communication
• Embedded devices needing multiple asynchronous serial ports
• Telecommunications equipment utilizing RS-232 interfaces
• IoT gateways with low-power serial connectivity requirements

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance details via official documentation before procurement. Check for moisture sensitivity level handling requirements during storage and assembly. Validate pin compatibility with existing PCB footprints as the QFN-32 package dimensions are critical for replacement designs.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when dual serial ports with moderate speed requirements are needed. Ensure the design accommodates the 32-QFN package constraints. Verify that the 3.125 Mb/s maximum data rate meets application needs. Consider the 2.25V to 5.5V operating range for power supply design. Evaluate if the 16-byte FIFO depth is sufficient for the expected data burst patterns.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the XR16L2551 series of low-voltage DUARTs. It shares functional similarities with the XR16L2550 but differs in packaging and specific electrical characteristics. The IL suffix indicates the QFN-32 package variant. It is part of MaxLinear's VLIO UART product line, designed for cost-sensitive applications requiring reliable serial communication.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Check for XR16L2550IM-F as a potential alternative with similar functionality but different packaging. Verify pin-to-pin compatibility before substitution. Review datasheets for differences in electrical parameters and package dimensions. Ensure the substitute component meets the same temperature and voltage specifications.