XR16M2650IL32

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The XR16M2650IL32 is a dual universal asynchronous receiver/transmitter (DUART) integrated circuit manufactured by MaxLinear, formerly Exar. It features two independent UART channels with 32-byte transmit and receive FIFOs to enhance system throughput. The device supports data rates up to 16 Mbps and operates on a single supply voltage ranging from 1.62 V to 3.63 V. It includes an internal oscillator, IrDA encoder/decoder, automatic flow control, and modem control signals. The component is housed in a 32-lead LQFP package.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent UART channels with 32-byte FIFO buffers for each transmitter and receiver
• Integrated IrDA encoder and decoder supporting infrared communication protocols
• Automatic hardware flow control capabilities to manage data transmission efficiency
• Internal clock oscillator eliminating the need for external crystal components

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Industrial automation systems requiring reliable serial communication
• Medical equipment utilizing RS-232 or RS-422 interfaces
• Point-of-sale terminals and embedded control systems
• Infrared data exchange modules in portable devices

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the manufacturer designation as MaxLinear or Exar when sourcing this component, as corporate branding changes may affect part marking. Confirm the specific suffix indicates the 32-lead LQFP package variant. Ensure compatibility with the required operating voltage range of 1.62 V to 3.63 V for your target application design.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when dual serial ports are required within a compact footprint. The 32-byte FIFOs reduce CPU overhead compared to standard UARTs. Verify that the 32-lead LQFP package fits the PCB layout constraints. Consider the 16 Mbps maximum speed if high-throughput serial links are necessary for the system architecture.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the XR16M2650 family of DUARTs, which provides versatile serial interface solutions. The IL32 suffix specifically denotes the 32-lead plastic quad flat package (LQFP). This family is designed to replace legacy UARTs while offering enhanced performance through integrated FIFOs and lower power consumption profiles suitable for modern embedded applications.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

Check for direct pin-compatible alternatives within the same MaxLinear/Exar portfolio. Verify electrical specifications match, particularly voltage ranges and FIFO depths. Ensure the replacement supports the same protocol standards such as RS-232 and RS-422.