USB2502-AEZG

Controllers Overview

The USB2502-AEZG is a Microchip Technology USB 2.0 compliant 2-port hub controller designed for high-speed, full-speed, and low-speed data transmission. It features integrated USB transceivers, internal short-circuit protection, and complete USB termination with pull-up/pull-down resistors. The device supports both self-powered and bus-powered operation modes, automatically detecting the power source. Configuration is flexible, allowing setup via hardware strapping, an external I2C EEPROM, or an SMBus slave interface. It includes an onboard 24MHz crystal driver circuit and an internal 1.8V linear voltage regulator, operating with a 3.3V I/O supply that is 5V tolerant.

Controllers Feature Summary

• Integrated USB 2.0 transceivers with internal short-circuit protection and complete termination resistors
• Flexible configuration options including hardware strapping, I2C EEPROM, and SMBus slave interface
• Automatic detection and switching between self-powered and bus-powered operational modes
• Onboard 24MHz crystal driver circuit and internal 1.8V linear voltage regulator

Controllers Applications

• USB expansion hubs requiring compact form factors
• Self-powered peripheral devices needing multiple USB connections
• Bus-powered applications with dynamic power management requirements
• Embedded systems integrating USB connectivity via SMBus or EEPROM configuration

Controllers Procurement Notes

Verify the specific package variant (QFN-36 or TQFP-48) required for your design, as the model suffix indicates the package type. Confirm RoHS compliance status and check for any available errata sheets on the manufacturer's website to ensure silicon revision compatibility. Ensure the selected component matches the intended configuration method (strapping, EEPROM, or SMBus) during procurement planning.

Controllers Selection Notes

Select this controller when a dual-port USB 2.0 solution is needed with integrated power management and transceivers. Consider the QFN-36 package for space-constrained designs or TQFP-48 for easier prototyping. Evaluate the need for external EEPROM versus SMBus configuration based on system architecture. Ensure the host system supports the required USB speeds and that power delivery meets the hub's consumption limits in the chosen mode.

Controllers Part Context

The USB2502 belongs to Microchip's family of USB 2.0 hub controllers, offering a cost-effective solution for expanding USB connectivity. It is designed to replace discrete hub implementations by integrating critical functions like transaction translation and power switching control logic. The device supports compound device configurations and offers OEM-selectable features for VID/PID customization.

Controllers Replacement Considerations

Direct pin-compatible replacements within the same family may include other Microchip USB hub controllers with similar port counts and package options. Verify functional equivalence regarding configuration interfaces and power management capabilities before substitution. Cross-reference datasheets to ensure compatibility with existing PCB layouts and firmware drivers.