XR16L2550IL

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16L2550IL is a dual universal asynchronous receiver and transmitter (UART) manufactured by MaxLinear. It features two independent UART channels with 16-byte transmit and receive FIFOs, supporting data rates up to 4 Mb/s. The device operates on a supply voltage ranging from 2.25 V to 5.5 V, with typical operating currents of 1 mA, 1.3 mA, or 3 mA depending on the mode. It is housed in a 32-QFN package measuring 5x5 mm and supports surface mount installation. The component functions within an industrial temperature range of -40°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual UART architecture with integrated 16-byte FIFOs for both transmission and reception
• Supports automatic hardware flow control via RTS/CTS signals and software Xon/Xoff protocols
• Includes complete modem control interface and onboard status registers for error indication
• Features internal loop-back capability for diagnostic testing and programmable baud rate generators

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring reliable serial communication
• Embedded devices needing multiple RS-232 interfaces in compact form factors
• Telecommunications equipment utilizing low-voltage logic levels
• Point-of-sale terminals and POS peripherals

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify current availability as the XR16L2550IL is listed as obsolete or end-of-life by the manufacturer. Confirm RoHS compliance details through official datasheets before procurement. Check for moisture sensitivity level requirements during storage and handling. Ensure replacement components are functionally compatible if this specific part number is unavailable.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a dual UART solution with small footprint is required. The 32-QFN package suits space-constrained designs. Verify that the 2.25V to 5.5V operating range matches the system power rails. Consider the 4 Mb/s maximum data rate against application throughput needs. Evaluate thermal performance within the specified -40°C to +85°C range.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The XR16L2550IL belongs to the XR16L2550 series of low-voltage DUARTs. It is functionally similar to other Exar/MaxLinear UARTs like the XR16L2552 but differs in package type. The IL suffix denotes the 32-QFN package variant. This series provides enhanced functionality over legacy ST16C2552 equivalents while maintaining pin compatibility in certain packages.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Check for functional equivalents such as the XR16L2552 if package flexibility exists. Verify pin-to-pin compatibility with National Semiconductor PC16552 derivatives. Consult manufacturer substitution guides for lead-free alternatives.