CY7C65100-SC - 4-Port USB 1.1 Hub Controller | Infineon
MPN: CY7C65100-SC ✗ End of Life| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
CY7C65100-SC Overview
What is a USB hub controller? A USB hub controller is an interface IC that manages traffic between one upstream host connection and multiple downstream USB peripherals. In the device hierarchy, it belongs to the USB interface controller family, then interface integrated circuits, and finally semiconductors. Fixed-function controllers implement standard hub behavior in hardware rather than relying on application firmware, making them useful for established USB expansion designs.
The CY7C65100 series supports USB Specification Revision 1.1 and provides up to four downstream ports. Its fixed-function architecture removes firmware-development requirements, while its 8 kB OTP memory provides embedded program storage. The 28-pin SOIC package supports conventional surface-mount assembly, and distributor records identify the device as an application-specific USB hub or microcontroller IC.
The controller is intended for computers and peripheral systems that need additional USB attachment points. Typical implementations include desktop USB expansion, computer peripherals, external connection accessories, and legacy USB 1.1 equipment. Its four-port capability consolidates multiple downstream links behind one upstream port, reducing the need for separate hub hardware when downstream port count is the primary requirement.
Engineers should verify the complete electrical characteristics, pin names, timing limits, and USB signal-routing requirements in the manufacturer datasheet before layout. USB differential pairs require controlled impedance and careful branch geometry, particularly when four downstream ports share one upstream interface. Decoupling and power distribution should follow the datasheet recommendations, and enumeration behavior must be checked against the target host and connected devices.
This page distinguishes verified product facts from parameters that require engineering confirmation. The manufacturer datasheet identifies fixed-function USB hub behavior, USB 1.1 compliance, four downstream ports, and no firmware-development requirement; detailed operating limits, electrical values, and exact pin assignments remain subject to the published technical data.
Drop-in alternatives for CY7C65100-SC — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesCY7C65100-SC Specifications
| Product Type | Fixed-function USB hub controller |
| USB Compliance | USB Specification Revision 1.1 |
| Downstream Ports | Up to 4 ports |
| Upstream Ports | 1 USB attachment point |
| Embedded Program Memory | 8 kB OTP |
| Firmware Requirement | No firmware development required |
| Package | 28-SOIC (0.295 inch, 7.50 mm width) |
| Package Pin Count | 28 pins |
| Mounting Type | Surface mount |
| Manufacturer Category | Application Specific USB Hub/Microcontroller Microcontroller IC |
| Datasheet Page Count | 12 pages |
CY7C65100-SC 28 pins Pin Configuration Guide
Pin configuration for CY7C65100-SC (28 pins package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for CY7C65100-SC.
Refer to the datasheet for full pin configuration.
Typical Applications
CY7C65100-SC is suitable for 6 applications: Desktop USB Expansion, Computer Peripheral Hub, Legacy USB 1.1 Accessory, USB Port Expansion Card, Industrial USB Connectivity Module, Educational USB Hub Demonstration.
Desktop USB Expansion
The CY7C65100-SC is suitable for expanding one upstream computer connection into as many as four downstream USB attachment points. Its fixed-function architecture removes the need for firmware development for the standard hub use case described by the manufacturer datasheet. Place the controller between the host-side USB connection and the downstream port circuitry, then validate enumeration, cable length, device loading, and power requirements in the target system. Because this is a USB Specification Revision 1.1 solution, it is intended for legacy full-speed applications rather than modern USB 2.0 or USB 3.x hubs.
Recommended
Computer Peripheral Hub
The Infineon CY7C65100-SC can consolidate several legacy USB peripherals behind a single upstream attachment point. Its four downstream-port capability is useful for keyboards, mice, printers, and other accessories that enumerate through a USB 1.1-compatible host environment. The fixed-function design simplifies firmware support, while the 28-SOIC package permits conventional surface-mount assembly. System designers must still check host compatibility, port current limits, connector wiring, and USB signal integrity against the manufacturer datasheet.
Recommended
Legacy USB 1.1 Accessory
The CY7C65100-SC fits an established USB 1.1 accessory that needs multiple downstream connection points without a software-defined hub controller. Its fixed-function operation and no-required-firmware characteristic reduce implementation effort for a predictable hub design. The controller’s legacy USB specification limits it to systems whose host, cables, connectors, and peripherals are compatible with Revision 1.1. Confirm power budget, hot-plug behavior, and signal routing in the original Cypress documentation before release.
Recommended
USB Port Expansion Card
A USB port expansion card can use the CY7C65100-SC to turn one upstream connection into up to four downstream ports. The 28-SOIC surface-mount package supports board-level integration, while the fixed-function architecture avoids firmware development for the stated hub application. PCB layout should keep USB differential traces impedance-controlled, minimize stubs between the controller and connectors, and provide tested decoupling. Verify the actual current available from the host and each port before designing downstream power distribution.
Recommended
Industrial USB Connectivity Module
The CY7C65100-SC may be evaluated for legacy USB connectivity modules where four downstream ports and a hardware-controlled hub are sufficient. Its fixed-function operation can simplify deterministic USB expansion, but industrial deployment requires operating-temperature, voltage, ESD, reliability, and lifecycle verification from the manufacturer documentation. The retrieved data does not establish those ratings. Engineers should treat the USB 1.1 topology as the confirmed strength and treat environmental qualification as unresolved until verified.
Recommended
Educational USB Hub Demonstration
The CY7C65100-SC is suitable for an educational or prototype USB hub platform that demonstrates fixed-function USB expansion. Students can observe how one upstream link can support up to four downstream ports without developing firmware for the controller. The 28-SOIC package and legacy USB 1.1 specification make the device useful for benchmark and compatibility experiments with older USB equipment. Production use should wait until supply, lifecycle, electrical limits, and long-term temperature requirements are confirmed.
Recommended
Recommended Products Summary
Engineering reference data for CY7C65100-SC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | 28-SOIC (0.295 inch, 7.50 mm width) |
| Brand | Infineon Technologies |
| Product Type | Fixed-function USB hub controller |
| USB Specification | USB Specification Revision 1.1 |
| Downstream Ports | Up to 4 |
| Upstream Attachment Points | 1 |
| Embedded Memory | 8 kB OTP |
| Firmware Requirement | No firmware development required |
Key Differentiators
- Fixed-function hub implementation (vs Generic firmware-based USB hub controller)
- Four downstream USB ports (vs Single-port USB interface)
- USB 1.1-specific positioning (vs Modern USB 2.0 or USB 3.x hub controller)
- Embedded OTP storage (vs Controller without specified embedded program memory)
Design Notes
Route USB differential signals as controlled-impedance pairs and minimize branch stubs between the controller and connectors. Four downstream ports increase the number of signal transitions and cable connections, so maintain consistent pair geometry and provide a return path beneath the signal path according to the board stack-up. Validate differential impedance, skew, ringing, and enumeration with the final cables and peripherals rather than relying only on schematic connectivity.
Confirm the host’s available current before assigning downstream-port power budgets. The four-port topology does not by itself establish four simultaneous load-current limits; those limits must come from the controller datasheet and the system power source. Use short, adequately sized power paths, local decoupling at the device, and separate routing where practical so peripheral inrush does not create excessive voltage disturbance on the upstream supply.
Use the exact 28-SOIC land pattern and verify pin numbering against the manufacturer datasheet before fabrication. The supplied data confirms the package and pin count but does not provide a complete verified pin assignment, so do not infer USB, power, ground, or control functions from package position alone. Check connector orientation, shielding, chassis grounding, and USB trace geometry together during layout review.
Do not substitute a generic four-port USB hub IC solely because its package and advertised port count appear similar. Compatibility requires USB Specification Revision 1.1 behavior, matching pin functions, electrical limits, and system-level enumeration support. The supplied Alternatives Cross-Reference Data contains generic lookup tools but no verified drop-in MPN, so any proposed replacement must be checked against the original CY7C65100 datasheet and tested on the target board.
Compliance Information
The supplied Verified Web Data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for CY7C65100-SC. These fields remain unknown rather than assumed.
