USB5742B/2GX01

Controllers Overview

The USB5742B-I/2GX01 is a low-power, OEM-configurable USB 3.2 Gen 1 hub feature controller manufactured by Microchip Technology. It provides two downstream ports supporting SuperSpeed (5 Gbps), Hi-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps) data rates. The device integrates an embedded 8051 microcontroller with 64 KB ROM, 8 KB RAM, and 8 KB OTP memory for firmware execution and configuration. It operates within a commercial temperature range of 0°C to +70°C and supports battery charging profiles including DCP, CDP, and SDP via USB-IF BC1.2 compliance.

Controllers Feature Summary

• Supports USB 3.2 Gen 1 SuperSpeed alongside legacy USB 2.0 speeds with integrated termination resistors
• Includes PortSwap, PHYBoost, and VariSense features for signal integrity optimization in compromised environments
• Enables OEM customization through SPI ROM, OTP ROM, or SMBus interfaces
• Integrates USB-IF Battery Charging 1.2 detection circuitry for portable device support

Controllers Applications

• Standalone USB Hubs
• Laptop Docks
• PC Motherboards
• Multi-function USB 3.2 Gen 1 Peripherals

Controllers Procurement Notes

Verify the specific suffix '2GX01' against the manufacturer's current datasheet to confirm package type and environmental grade. Ensure the ordering information matches the required temperature range and pinout configuration before procurement.

Controllers Selection Notes

Select this component when a compact 2-port USB 3.2 Gen 1 solution is required with advanced signal integrity features like PHYBoost. Consider the VQFN-56 package constraints and verify that the host system can support the necessary SPI or SMBus configuration interfaces.

Controllers Part Context

This part belongs to the Microchip USB5742 series of USB hub controllers. It is designed as a successor to previous generations, offering enhanced configurability and power management capabilities while maintaining compatibility with standard USB host drivers across Windows, Linux, and macOS platforms.

Controllers Replacement Considerations

Consult the official Microchip documentation for verified cross-reference part numbers. Do not substitute with generic USB hubs without verifying electrical compatibility and firmware requirements.