CY7C65100-SC

Application Specific Microcontrollers Overview

The CY7C65100-SC is a four-port Universal Serial Bus (USB) fixed-function hub controller manufactured by Cypress Semiconductor. It integrates a hub repeater, hub controller, Serial Interface Engine (SIE), and USB transceivers to support up to four downstream ports for full-speed (12 Mbps) and low-speed (1.5 Mbps) devices. The device operates on a 4.0V–5.5V DC supply with an internal 48-MHz PLL driven by a 6-MHz crystal. It supports self-powered and bus-powered configurations via the PWR_SEL pin, featuring individual downstream port power switching and overcurrent detection.

Application Specific Microcontrollers Feature Summary

• Fixed-function four-port USB hub compliant with USB Specification Rev. 1.1
• Integrated hub repeater, controller, SIE, and transceivers requiring no firmware
• Internal 48-MHz PLL reduces design cost by using only a 6-MHz external crystal
• Individual downstream port power switching and overcurrent detection

Application Specific Microcontrollers Applications

• Standalone USB hubs
• Motherboard hubs
• Monitor hubs

Application Specific Microcontrollers Procurement Notes

Verify the component manufacturer as Cypress Semiconductor Corporation, not Infineon Technologies. Confirm the package type is the 28-lead SOIC (S21). Ensure the operating temperature range matches the commercial specification of 0°C to 70°C. Check for RoHS compliance status in current distributor listings.

Application Specific Microcontrollers Selection Notes

Select this part when a firmware-free USB hub solution is required. Use the SC suffix for commercial temperature ranges. Designers must provide an external 6-MHz crystal or oscillator; ceramic resonators are insufficient. External series resistors of 20Ω ± 5% are mandatory for all upstream and downstream data lines to meet impedance requirements.

Application Specific Microcontrollers Part Context

This component belongs to the CY7C65100 series of USB hub controllers. It is designed as an Application Specific Standard Product (ASSP) to reduce development risk compared to microcontroller-based solutions. The device simplifies system expansion by providing multiple attachment points for USB peripherals without complex programming.

Application Specific Microcontrollers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs based on the 28-pin SOIC footprint and electrical specifications before considering alternative components.