USB2512BI-AEZG

Controllers Overview

The USB2512BI-AEZG is a Microchip Technology USB 2.0 Hi-Speed Hub Controller IC featuring two downstream ports and battery charging support. It operates within an industrial temperature range of -40°C to +85°C and utilizes a 36-pin SQFN (6x6 mm) package. The device supports low-speed, full-speed, and high-speed downstream devices with integrated MultiTRAK technology for dedicated transaction translators per port. It requires a single external 3.3 V supply source, while internal regulators provide the necessary 1.2 V core voltage.

Controllers Feature Summary

• MultiTRAK technology provides a dedicated transaction translator for each port to maintain consistent data throughput.
• PortMap allows flexible port mapping and disable sequencing for various platform designs.
• PortSwap enables programmable USB differential-pair pin locations to simplify PCB layout.
• PHYBoost offers four programmable levels of 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 that the specific part number suffix indicates the industrial temperature grade (-40ºC to +85ºC). Confirm the package type matches the preferred 36-pin SQFN or legacy QFN variant. Ensure the design accounts for the required 3.3V power supply and any necessary I2C EEPROM or SMBus configuration components for OEM customization.

Controllers Selection Notes

Select this component when a two-port USB hub solution with battery charging capabilities is required for embedded systems. The industrial temperature rating makes it suitable for harsh environments compared to commercial variants. Consider footprint compatibility if replacing older USB251x/xi/xA/xAi products, as these are direct drop-in replacements sharing the same PCB components.

Controllers Part Context

This controller belongs to the Microchip USB251xB/xBi family, which includes models with varying downstream port counts. The 'B' designation specifically denotes battery charging support compliant with USB Battery Charging Specification Rev. 1.1. The 'i' suffix in the model name identifies the industrial temperature range extension, distinguishing it from the standard commercial temperature range versions.

Controllers Replacement Considerations

USB2512B-AEZG, USB2512-AEZG, USB2512i-AEZG

Controllers FAQ

How does the USB2512BI-AEZG handle battery charging?

It supports the USB Battery Charging Specification Rev. 1.1, allowing downstream ports to draw up to 1.5 amps on VBUS without requiring enumeration.

What is the function of PortSwap?

PortSwap allows the programming of USB differential-pair pin locations, which aligns signal lines directly to connectors to ease PCB design and avoid uneven trace lengths.

Is this component compatible with previous USB251x generations?

Yes, USB251xBi products are fully footprint compatible with USB251x/xi/xA/xAi products, serving as direct drop-in replacements.