USB2512I-AEZG

Controllers Overview

The USB2512I-AEZG is a low-power, OEM-configurable USB 2.0 Hi-Speed hub controller IC from the SMSC USB251x family. It features two downstream ports and supports Low-Speed, Full-Speed, and Hi-Speed devices. The device utilizes MultiTRAK technology with one transaction translator per port for high performance. It operates on a single external 3.3 V supply source, with internal regulators providing 1.2 V or 1.8 V core voltage. The component supports an industrial temperature range of -40°C to +85°C and is housed in a 36-pin QFN package measuring 6x6 mm.

Controllers Feature Summary

• MultiTRAK Technology provides dedicated transaction translators per port to maintain consistent full-speed data throughput regardless of active downstream connections.
• PortMap allows flexible port mapping and disable sequencing, automatically reordering remaining ports to match host numbering schemes when ports are disabled.
• PortSwap enables programmable USB differential-pair pin locations to align signals directly to connectors, simplifying PCB design by avoiding uneven trace lengths.
• PHYBoost offers four programmable levels of USB signal drive strength to restore signal integrity in downstream port transceivers.

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 'I' confirms the industrial temperature range (-40°C to +85°C) as documented in the datasheet's order numbers table. Ensure the package type matches the 36-pin QFN (6x6 mm) specification. Confirm RoHS compliance and lead-free status if required by the application environment. Cross-reference the manufacturer history between SMSC and Microchip Technology for accurate sourcing documentation.

Controllers Selection Notes

Select this component for embedded USB solutions requiring a compact footprint with two downstream ports. It is suitable for designs needing individual or ganged power control and over-current sensing. Consider the USB2512B variant if commercial temperature range (0°C to +85°C) suffices, as it is a direct drop-in replacement. Verify compatibility with I2C EEPROM or SMBus configuration interfaces based on system architecture requirements.

Controllers Part Context

This part belongs to the SMSC USB251x Hub Family, which includes variants with 2, 3, 4, or 7 downstream ports. The 'I' suffix denotes the industrial temperature grade. The family is designed for OEM configurability via serial interfaces. The USB251xB/xBi products are fully footprint compatible with the standard USB251x/xi/xA/xAi products, allowing for direct drop-in replacements across different feature sets within the same package.

Controllers Replacement Considerations

The USB2512B-AEZG is a confirmed direct drop-in replacement with identical footprint and pinout. It supports the same 36-pin QFN package but operates in the extended commercial temperature range (0°C to +85°C). PIDs, DIDs, and register defaults may differ and require configuration adjustments to match OEM needs.