R8A66156SP#T1

Overview

The R8A66156SP#T1 is a USB 2.0 full-speed hub controller manufactured by Renesas Electronics Corporation. It implements the Universal Serial Bus Specification Revision 2.0 and supports up to seven downstream ports for device connectivity. The component integrates an internal voltage regulator, eliminating the need for external power management circuitry for standard operation. It features comprehensive error handling capabilities, including automatic retry mechanisms for transaction errors and robust protection against over-current conditions on connected ports. The device operates with a single 3.3V power supply and includes interrupt-driven data transfer support to minimize host processor overhead during data transmission.

Feature Summary

• Supports connection of multiple USB peripherals through integrated multi-port hub architecture
• Includes built-in voltage regulation for simplified system design and reduced component count
• Provides automated error recovery protocols to maintain stable data communication integrity

Applications

• Desktop computer peripheral expansion systems
• Industrial control panels requiring multiple USB interface connections
• Embedded multimedia devices needing additional connectivity options

Procurement Notes

Verify the specific suffix designation against official Renesas documentation to confirm package type and temperature range specifications. Ensure compatibility with the target host controller's USB driver stack before integration. Confirm that the supply voltage requirements align with the system's 3.3V rail stability. Check for any recent product lifecycle notifications regarding availability or recommended replacements.

Selection Notes

Select this component when a dedicated hardware solution is required for expanding USB connectivity in embedded designs. Consider the pin count and package constraints relative to the PCB layout requirements. Evaluate the thermal performance characteristics if the application involves high-density port usage. Compare against software-based hub solutions if cost sensitivity is a primary factor.

Part Context

This part belongs to the Renesas USB peripheral controller family, designed specifically for hub functionality within USB architectures. It complements host controllers by managing traffic distribution among connected devices. The series is utilized in various consumer electronics and industrial applications where reliable multi-device connectivity is essential without complex external logic.