USB5537BI4100AKZETR

Controllers Overview

The USB5537BI4100AKZETR is a 7-port SuperSpeed/Hi-Speed configurable hub controller compliant with the USB 3.0 specification. It supports data rates of 5 Gbps, 480 Mbps, 12 Mbps, and 1.5 Mbps. The device integrates four downstream USB 3.0 ports and three additional USB 2.0 ports. It features an embedded 8051 microcontroller with 8 KB RAM and 32 KB ROM. Configuration is supported via internal default settings, on-chip OTP ROM, external SPI ROM, or SMBus. The component operates within a temperature range of -40°C to +85°C and is housed in a 72-pin QFN package.

Controllers Feature Summary

• Supports battery charging protocols including USB-IF Battery Charging rev. 1.2 (DCP & CDP) and emulation for Apple, Blackberry, and Chinese YD/T standards.
• Integrates MultiTRAK technology providing dedicated Transaction Translators for each port to maintain consistent full-speed throughput.
• Includes PHYBoost and VariSense features for selectable drive strength and programmable receiver sensitivity levels.
• Features Vendor Specific Messaging (VSM) support for firmware upload over USB.

Controllers Applications

• High-performance docking stations requiring mixed USB 3.0 and USB 2.0 connectivity
• Industrial control systems needing configurable hub controllers with extended temperature ranges
• Portable devices supporting fast charging from mobile platforms

Controllers Procurement Notes

Verify the specific ordering suffix against official Microchip Technology documentation to confirm package dimensions and exposed pad size. Confirm that the 'TR' suffix indicates tape and reel packaging containing 3000 pieces. Ensure compatibility with required configuration methods such as SPI ROM or SMBus before procurement.

Controllers Selection Notes

Select this model when a hybrid 4-port SuperSpeed and 3-port Hi-Speed configuration is required. Consider the industrial temperature range (-40°C to +85°C) indicated by the 'I' suffix. Verify if onboard configuration via OTP or external SPI is preferred over runtime SMBus control for the specific application design.

Controllers Part Context

This component belongs to the USB5537B family of hub controllers manufactured by Microchip Technology. It succeeds legacy SMSC designs and provides a low-power solution for expanding USB connectivity. The device is designed to operate in parallel with USB 2.0 traffic without affecting SuperSpeed data transfers.

Controllers Replacement Considerations

USB5537B-4100AKZE is a commercial grade variant with identical functionality but a different operating temperature range and package exposed pad dimension.