XR22801IL32-F

Overview

The XR22801IL32-F is a Hi-Speed USB 2.0 compound device featuring an embedded hub and four downstream functions: a 10/100 Ethernet controller, an enhanced UART, an I2C multi-master controller, and an Enhanced Dedicated GPIO Entity (EDGE) controller. It supports data rates up to 480 Mbps on the USB interface and 15 Mbps on the UART. The device integrates a 10/100 Ethernet MAC and PHY compliant with IEEE 802.3, offering auto-negotiation and checksum offload. The UART includes 1024-byte TX and RX FIFOs. Operating from a single +5.0V supply with a regulated +3.3V output, it functions within a temperature range of -40°C to +85°C in a QFN-32 package.

Feature Summary

• Integrates a Hi-Speed USB 2.0 interface with an embedded hub for connecting multiple downstream peripherals.
• Includes a 10/100 Ethernet controller with integrated MAC and PHY supporting auto-negotiation and flow control.
• Features an enhanced UART with large 1024-byte FIFOs and automatic RS-485 half-duplex control.
• Provides I2C multi-master capability and an EDGE controller for parallel GPIO access and PWM generation.

Applications

• USB to Ethernet dongles
• Point-of-sale (POS) terminals
• Test instrumentation equipment
• Industrial networking devices
• Factory automation and process controls

Procurement Notes

Verify component authenticity through authorized channels as the device originates from Exar Corporation, now part of MaxLinear. Confirm that the specific IL32 suffix corresponds to the QFN-32 package variant required for your design. Ensure compatibility with existing firmware or drivers, particularly regarding custom driver implementations for full feature access.

Selection Notes

Select this component when a single-chip solution is needed to bridge USB hosts to Ethernet networks and serial peripherals. It is suitable for designs requiring simultaneous connectivity via Ethernet, UART, and GPIO/I2C without external hubs. Consider the power consumption requirements, as the device draws significant current during operation compared to lower-power alternatives.

Part Context

The XR22801 belongs to the XR2280x series of Hi-Speed USB to Ethernet bridges. It shares functional similarities with the XR22802 but offers a different pin count and peripheral configuration. This family is designed to simplify system integration by combining multiple interface standards into a single semiconductor device.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official manufacturer resources for current lifecycle status and potential obsolescence management strategies.