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Infineon Technologies CY7C65620-56LTXI
- Part No.:
- CY7C65620-56LTXI
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
CY7C65620-56LTXI.pdf
- Description:
- IC USB CTLR 2.0 2PORT 56-QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,396
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Product details
Overview
CY7C65620-56LTXI from Cypress Semiconductor is a 2-port, single-transaction-translator (1TT) USB 2.0 hub controller in a 56-pin QFN package, operating from a single 3.3 V supply with integrated 24 MHz crystal PLL, upstream pull-up, downstream pull-downs, and on-chip termination resistors. It supports bus-powered operation, configurable port power switching, overcurrent detection, and LED control for embedded peripheral hubs in space-constrained industrial and automotive systems.
For engineers reviewing the CY7C65620-56LTXI datasheet, CY7C65620-56LTXI pinout, CY7C65620-56LTXI application, or CY7C65620-56LTXI equivalent, key selection criteria include its 2-port 1TT architecture, -40 °C to +85 °C industrial temperature grade, SPI-configurable VID/PID/port count/power settings, integrated USB transceivers, and compatibility with CY7C65640-series footprint and firmware.
Technical Context
The CY7C65620 implements a USB 2.0 hub repeater and transaction translator (TT) that routes high-speed traffic directly through the repeater while translating split transactions for full-/low-speed downstream devices. Its serial interface engine (SIE) handles bit stuffing, checksums, token identification, and address checking independently of host software.
Configuration is loaded at power-up from an external SPI EEPROM, enabling runtime customization of vendor/product IDs, active/removable port count, per-port power limits (high/full-speed), overcurrent polarity, LED behavior, and compound device mode - all without firmware changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | USB 2.0 specification compliant; USB-IF certified (TID# 30000009); WHQL compliant |
| Port Count | 2 downstream ports sharing one transaction translator (1TT); supports ganged or independent power switching |
| Operating Temp | -40 °C to +85 °C industrial grade; qualified for automotive and embedded applications |
| Supply Voltage | Single 3.3 V ±10% supply; internal regulator eliminates need for external LDO |
| Crystal Input | 24 MHz external crystal; integrated PLL generates required USB clock with no external oscillator |
| Power Modes | Bus-powered and self-powered modes supported; configurable overcurrent detection and timer thresholds |
| Configurability | Fully SPI EEPROM programmable: VID/PID/DID, port enable/disable, power settings, LED polarity, string descriptors |
Pinout & Package
Package: 56-pin QFN (8 mm × 8 mm, 0.5 mm pitch), thermally enhanced, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core power supply | 3.3 V input powering internal logic, PLL, and USB PHYs |
| GND | Ground reference | Common return for analog/digital domains; multiple pins for low-impedance path |
| D+/D- | Upstream differential pair | Connects to host or upstream hub; includes integrated 1.5 kΩ pull-up on D+ |
| PWR#[1], PWR#[2] | Downstream port power switches | Open-drain outputs controlling external FETs for per-port power delivery |
| OVR#[1], OVR#[2] | Downstream overcurrent sense inputs | Active-low inputs monitoring external current-sense resistors per port |
| LED[1], LED[2] | Port status indicator outputs | Open-drain outputs driving external LEDs for connection/activity indication |
| SPI_SCK, SPI_CS, SPI_SD | Serial programming interface | Configures device at power-up using external SPI EEPROM (VID/PID/port settings) |
| XTAL_IN/XTAL_OUT | Crystal oscillator terminals | Drives 24 MHz fundamental-mode crystal; internal load caps eliminate external capacitors |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB Transceivers | On-die upstream/downstream PHYs with built-in 1.5 kΩ pull-up (upstream) and 15 kΩ pull-downs (downstream), reducing BOM by ≥6 passive components |
| Single TT Architecture | One transaction translator shared across both ports enables cost-effective 2-port hub design while maintaining full USB 2.0 high-speed throughput for mixed-speed topologies |
| EEPROM-Based Configuration | Runtime reconfiguration of VID/PID, port count, power limits, and LED behavior via SPI without firmware update or mask change |
| Industrial Temperature Range | Guaranteed operation from -40 °C to +85 °C supports deployment in harsh environments including automotive infotainment and industrial HMIs |
| Space-Saving QFN | 56-pin QFN (8 × 8 mm) provides pin compatibility with CY7C65640-series, enabling scalable 2- to 4-port designs on same PCB footprint |
Applications
| Monitor Hub | Keyboard/Mouse Hub |
|---|---|
Use Scenario: Integrated USB hub in LCD monitors providing auxiliary ports for peripherals like webcams, headsets, or flash drives. IC Role / Device Role / Timing Role: Acts as a bus-powered 2-port hub with automatic enumeration and port power management, interfacing between monitor's internal USB host controller and downstream devices. Use Value: Eliminates need for external level shifters or discrete pull resistors; reduces board area by 30% versus discrete hub solutions due to integrated termination and regulators. | Use Scenario: Compact keyboard with integrated USB hub supporting mouse, headset, and USB-C charging passthrough. IC Role / Device Role / Timing Role: Provides two downstream ports with independent overcurrent protection and LED indicators, managed via SPI-configured power profiles. Use Value: Enables dual-role port configuration (one for HID, one for charging negotiation) using ganged power switching and configurable VID/PID for OS-level recognition. |
| Industrial Docking Station | Embedded Storage Enclosure |
Use Scenario: Ruggedized docking station for factory-floor tablets connecting to barcode scanners, printers, and Ethernet adapters. IC Role / Device Role / Timing Role: Serves as a self-powered 2-port hub with extended temperature support and remote wakeup capability for peripheral hot-plug detection. Use Value: Maintains stable USB enumeration under voltage ripple (±10% VDD tolerance) and thermal cycling (-40 °C to +85 °C), critical for unattended industrial operation. | Use Scenario: External SSD enclosure with dual USB-A ports for simultaneous data transfer and firmware update access. IC Role / Device Role / Timing Role: Functions as a bus-powered 2-port hub with configurable port removability flags and compound device descriptor support for dual-interface visibility. Use Value: Allows host OS to recognize enclosure as both mass storage and service interface simultaneously via SPI-programmed string descriptors and DID assignment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 2.0 hub controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C65630-56LTXI | 4-port variant with identical 56-pin QFN package, same 1TT architecture, and SPI configuration interface | Supports higher port density; requires additional downstream power FETs and overcurrent sensing circuitry | Select when system requires >2 downstream ports but must retain same PCB layout and firmware stack |
| UPD720114GA | 4-port, 2-TT hub with separate transaction translators per port; requires 1.2 V + 3.3 V supplies; no integrated crystal PLL | Delivers higher aggregate bandwidth for mixed-speed devices; lacks EEPROM-based configurability and industrial temp rating | Choose for high-throughput applications with multiple full-speed peripherals where latency isolation outweighs BOM and layout simplicity |
Compared with CY7C65630-56LTXI, the CY7C65620 offers lower power and smaller footprint for 2-port use cases, while UPD720114GA trades configurability and integration for higher TT-level concurrency - making CY7C65620 optimal for cost-sensitive, space-constrained industrial hubs requiring field-programmable identity and robust thermal performance.
Availability
CY7C65620-56LTXI is available at Aetrix Electronics and suitable for monitor hubs, keyboard/mouse hubs, industrial docking stations, and embedded storage enclosures requiring stable component supply, long-term lifecycle support, and industrial-grade reliability.
Supply support for CY7C65620-56LTXI includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in programmable system-on-chip (PSoC), USB, memory, and connectivity solutions for industrial, automotive, and consumer markets.
The EZ-USB HX2LP™ family was designed specifically for ultra-low-power, cost-optimized USB 2.0 hub implementations in space-constrained embedded systems - emphasizing integration of passives, EEPROM configurability, and industrial temperature resilience.
FAQ
Does CY7C65620-56LTXI require an external crystal?
Yes - it requires a 24 MHz fundamental-mode quartz crystal connected to XTAL_IN/XTAL_OUT pins. The device integrates load capacitors and a PLL, eliminating external capacitors and oscillator ICs. Crystal stability must meet ±100 ppm over temperature and aging to ensure USB timing compliance.
Can CY7C65620-56LTXI operate in self-powered mode?
Yes - it supports both bus-powered and self-powered configurations. In self-powered mode, VBUSPOWER is disconnected, and internal regulators derive power from VDD. Port power switching remains functional, and overcurrent detection operates using externally supplied VDD-referenced sense resistors.
How is USB device identity configured on CY7C65620-56LTXI?
Identity is programmed into an external SPI EEPROM loaded at power-up. The EEPROM stores VID, PID, DID, and string descriptors. Cypress-provided tools (e.g., EZ-USB HX2LP Configuration Utility) generate .iic files compatible with standard SPI EEPROMs (e.g., AT25DF041A), enabling field updates without hardware change.
Is CY7C65620-56LTXI pin-compatible with CY7C65640?
No - while CY7C65620 shares the same 56-pin QFN footprint and signal mapping with CY7C65640/CY7C65640A, it lacks certain pins used for 4-port control (e.g., PWR#[3]/PWR#[4], OVR#[3]/OVR#[4]). Direct replacement requires PCB revision to remove unused pins and verify power/LED routing for only two ports.
CY7C65620-56LTXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 56-VFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Hub Controller
- Interface:
- USB
- Standards:
- USB 2.0
- Voltage - Supply:
- 3.15V ~ 3.45V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 56-QFN (8x8)
- Grade:
- -
- Qualification:
- -
CY7C65620-56LTXI FAQ
1.How can I place an order for CY7C65620-56LTXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65620-56LTXI on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY7C65620-56LTXI reliable?
The price and inventory of CY7C65620-56LTXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65620-56LTXI is usually 5 days.
3.What payment methods are accepted for CY7C65620-56LTXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65620-56LTXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65620-56LTXI?
CY7C65620-56LTXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65620-56LTXI order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY7C65620-56LTXI?
For technical support, including CY7C65620-56LTXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65620-56LTXI requirements.
6.How does Aetrix verify that CY7C65620-56LTXI is sourced from the original manufacturer or authorized distributors?
All CY7C65620-56LTXI products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY7C65620-56LTXI meets industry standards.
7.What is the process for return or replacement of CY7C65620-56LTXI?
All CY7C65620-56LTXI units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65620-56LTXI, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY7C65620-56LTXI part is unused and in its original packaging.
Return procedure for CY7C65620-56LTXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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