USB2514-AEZG-TR

Controllers Overview

The USB2514-AEZG-TR is a USB 2.0 High-Speed Hub Controller manufactured by Microchip Technology, featuring four downstream ports. It operates within an extended commercial temperature range of 0°C to +85°C and utilizes a 36-pin QFN package measuring 6x6 mm. The device supports data rates up to 480 Mb/s and includes MultiTRAK technology for dedicated transaction translation per port. Configuration is achieved via I²C EEPROM or SMBus interface, allowing customization of vendor and product IDs.

Controllers Feature Summary

• MultiTRAK technology provides one transaction translator per port to maintain consistent full-speed data throughput.
• PortMap feature enables flexible port mapping and disable sequencing to support multiple platform designs.
• PortSwap allows programmable USB differential-pair pin locations to simplify PCB layout alignment.
• PHYBoost offers four programmable levels of USB signal drive strength to recover signal integrity.

Controllers Applications

• LCD monitors and TVs
• Multi-function USB peripherals
• PC motherboards
• Set-top boxes, DVD players, DVR/PVR
• Printers and scanners

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature rating. Ensure compatibility with the intended PCB footprint and configuration method (EEPROM or SMBus). Check for any recent Product Change Notices regarding lead-free compliance or environmental specifications before finalizing procurement.

Controllers Selection Notes

Select this component when a low-power, OEM-configurable hub controller with four downstream ports is required. Consider the USB2514B variant if operation in temperatures up to +85°C is necessary, as the base USB2514 typically supports 0°C to +70°C. Verify that the system design accommodates the 36-pin QFN package dimensions and power supply requirements.

Controllers Part Context

This part belongs to the SMSC USB251x hub family, which includes variants with two, three, four, or seven downstream ports. The USB251xB/xBi products are fully footprint compatible with USB251x/xi/xA/xAi products, serving as direct drop-in replacements. This compatibility allows for cost savings through shared PCB components and simplified design transitions.

Controllers Replacement Considerations

USB2514B serves as a direct drop-in replacement with extended temperature support. USB2514i is suitable for industrial environments requiring -40°C to +85°C operation. Both variants maintain pin compatibility and utilize the same PCB components as the standard USB2514 model.

Controllers FAQ

Does the USB2514 support hot plugging?

Yes, the USB2514 hub controller supports hot plugging, allowing devices to be added or removed while the system is powered on.

How is the hub configured after reset?

The hub can be configured using an external I²C EEPROM or via an SMBus slave interface from a microcontroller. If no external memory is present, it defaults to internal register values.

What is the function of PHYBoost?

PHYBoost provides four programmable levels of USB signal drive strength in the downstream port transceivers to help restore USB signal integrity in compromised system environments.