USB2524-ABZJ

Controllers Overview

The USB2524-ABZJ is a 4-port USB 2.0 switching hub controller manufactured by Microchip Technology, housed in a 56-pin VQFN package. It supports High-Speed (480 Mb/s), Full-Speed (12 Mb/s), and Low-Speed (1.5 Mb/s) data rates. The device operates with a minimum supply voltage of 3 V and a maximum of 3.6 V, drawing a typical operating current of 460 mA. It functions within an industrial temperature range from -40°C to +85°C.

Controllers Feature Summary

• Supports electronic reconfiguration allowing any downstream port to be assigned to either of two upstream host connections on-the-fly.
• Provides configurable transaction translator modes, including Single-TT for each host or Multi-TT where each downstream port has a dedicated translator.
• Offers multiple LED interface modes to indicate USB activity, host ownership, or combined host ownership and port speed status.
• Enables enhanced configuration via external Serial I2C EEPROM or SMBus slave interface for custom descriptors and port assignments.

Controllers Applications

• Systems requiring dynamic sharing of USB peripherals between two independent host controllers.
• Embedded devices needing flexible port assignment through hardware strapping or software control.
• Industrial applications requiring robust switching hubs with wide operating temperature ranges.

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. Ensure compatibility with system power requirements and interface protocols before integration. Cross-reference the datasheet revision to confirm all electrical specifications and pin configurations match the intended design implementation.

Controllers Selection Notes

Select this component when a dual-host USB switching solution is required with support for both embedded and peripheral mode configurations. Consider the available configuration methods, such as hardware strapping or SMBus, based on system complexity. Evaluate the need for specific LED indication modes and transaction translator capabilities to ensure optimal performance for the target application.

Controllers Part Context

The USB2524 series belongs to Microchip's family of USB 2.0 hub controllers designed for high-performance switching applications. It integrates necessary transceivers, regulators, and termination resistors, reducing external component count. The device is part of a broader portfolio of USB interface solutions aimed at simplifying multi-host connectivity designs.

Controllers Replacement Considerations

Check for direct footprint-compatible alternatives within the same product family that offer similar pin counts and functionality. Verify that any substitute device supports the required dual-upstream architecture and configuration interfaces. Ensure thermal and electrical characteristics meet the original design specifications.