USB2514I-AEZG

Controllers Overview

The USB2514I-AEZG is a low-power, OEM-configurable USB 2.0 Hi-Speed hub controller featuring four downstream ports and MultiTRAK technology for high-performance data throughput. It operates within an industrial temperature range of -40°C to +85°C and supports both self-powered and bus-powered configurations. The device integrates fully compliant USB termination and pull-up/pull-down resistors, requiring only a single external 3.3V supply source while internal regulators provide core voltage. It offers enhanced configuration options via a serial I²C EEPROM or SMBus slave port.

Controllers Feature Summary

• MultiTRAK Technology provides one dedicated transaction translator per port to maintain consistent full-speed data throughput regardless of active downstream connections.
• PortMap allows flexible port mapping and disable sequencing to support multiple platform designs with minimal effort.
• PortSwap enables programmable USB differential-pair pin locations to align signals directly to connectors and simplify PCB design.
• PHYBoost features four programmable levels of USB signal drive strength to restore 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 existing PCB layouts if replacing legacy components, as footprint compatibility exists across certain product variants. Confirm that the required configuration method (EEPROM or SMBus) matches the system architecture.

Controllers Selection Notes

Select this component when a four-port USB 2.0 solution is required in space-constrained designs. The 'i' suffix indicates suitability for industrial environments (-40°C to +85°C). Consider the USB2514B variant if commercial temperature ranges suffice, as it shares the same footprint. Verify power requirements, as the device supports both self-powered and bus-powered modes with individual or ganged port power control.

Controllers Part Context

This part belongs to the SMSC USB251x hub family, which includes controllers with two, three, four, or seven downstream ports. The USB251xB/xBi products are designed as direct drop-in replacements for the USB251x/xi/xA/xAi series, maintaining identical footprints and allowing for cost savings through shared PCB components and USB-IF compliance by similarity.

Controllers Replacement Considerations

The USB2514B-AEZG serves as a direct footprint-compatible replacement for the USB2514I-AEZG. Both utilize the 36-pin QFN package. Note that the 'B' suffix denotes an extended commercial temperature range (0°C to +85°C), whereas the 'I' suffix supports the industrial range (-40°C to +85°C).

Controllers FAQ

How does MultiTRAK technology improve performance compared to standard hubs?

MultiTRAK provides one dedicated transaction translator per port, ensuring consistent full-speed data throughput regardless of the number of active downstream connections, unlike conventional hubs that share a single translator.

What configuration interfaces are supported for OEM customization?

The device supports enhanced OEM configuration options through either a single serial I²C EEPROM or an SMBus slave port interface.

Can the USB2514I-AEZG operate without an external crystal oscillator?

Yes, the device includes an onboard 24 MHz crystal driver compatible with ceramic resonators, or it can accept an external 24/48 MHz clock input.