XR19L222IL64-F

Overview

The XR19L222IL64-F is a quad UART interface integrated circuit manufactured by MaxLinear. It integrates four independent UART channels with RS-232 transceivers, supporting data rates up to 2 Mbps. The device operates within a supply voltage range of 2.97 V to 5.5 V and features 128 bytes of FIFO memory per channel. It includes an internal oscillator, hardware flow control, and modem signal management. The component is housed in a 64-pin LQFP package and supports industrial temperature ranges.

Feature Summary

• Integrates four independent UART channels with built-in RS-232 transceivers for multi-port serial communication.
• Includes 128-byte FIFO buffers per channel to reduce CPU overhead and improve data throughput efficiency.
• Features an internal oscillator eliminating the need for external clock components while supporting hardware flow control.

Applications

• Industrial automation systems requiring multiple serial connections
• Embedded devices needing compact multi-port UART solutions
• Telecommunications equipment utilizing RS-232 interfaces

Procurement Notes

Verify the specific suffix and manufacturer designation when sourcing, as Exar was acquired by MaxLinear. Confirm availability status as some listings indicate limited stock or discontinuation. Ensure compatibility with existing PCB footprints for the 64-LQFP package before procurement.

Selection Notes

Select this component when designing systems requiring four simultaneous RS-232 ports in a single IC. Consider the 128-byte FIFO depth for buffering requirements. Verify that the 2.97 V to 5.5 V operating voltage aligns with the system power rails and that the LQFP package fits the mechanical constraints.

Part Context

This part belongs to the XR19L series of combo UARTs from MaxLinear (formerly Exar). It is functionally related to other quad UART models like the XR16C854 but offers integrated transceivers. The IL64 suffix denotes the industrial temperature range and 64-pin LQFP packaging configuration.

Replacement Considerations

Check for direct pin-compatible alternatives within the XR19L family. Verify if the XR16C854IV-F serves as a suitable substitute if external transceivers are already present on the board, noting differences in FIFO size and integrated transceiver capabilities.