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Infineon Technologies CY7C65642-48AXCT
- Part No.:
- CY7C65642-48AXCT
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 48-LQFP
- Datasheet:
-
CY7C65642-48AXCT.pdf
- Description:
- IC CONTROLLER USB 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,269
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Product details
Overview
CY7C65642-48AXCT from Infineon is a USB 2.0 hub controller with four downstream ports, integrated multiple transaction translators (one per port), 2 KB ROM/64 B RAM MCU, and internal 5 V-to-3.3 V regulator - enabling bus- or self-powered operation in docking stations and monitor hubs.
For engineers reviewing the CY7C65642-48AXCT datasheet, CY7C65642-48AXCT pinout, CY7C65642-48AXCT application, or CY7C65642-48AXCT equivalent, this device delivers low-power, high-performance USB 2.0 hub functionality with configurable VID/PID, individual/ganged power switching, and ESD-robust internal termination.
Technical Context
The CY7C65642-48AXCT implements a full USB 2.0 hub architecture with independent TT logic per downstream port, enabling concurrent high-speed-to-full-speed translation without bandwidth contention. Its MCU executes enumeration, port control, and EEPROM-based configuration without external firmware.
It integrates upstream pull-up, downstream pull-down, and 45 Ω termination resistors; supports 12 MHz ±500 ppm crystal or 27/48 MHz oscillator input; and features internal power-failure detection for automatic ESD recovery - all within a single 48-pin TQFP package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | USB 2.0 compliant (TID# 30000059); supports HS/FS/LS downstream devices |
| Downstream Ports | 4 independent ports, each with dedicated transaction translator for concurrent speed translation |
| Power Modes | Bus-powered and self-powered; auto-switching between modes based on VBUS detection |
| Internal Regulator | Integrated 5 V-to-3.3 V regulator; eliminates need for external 3.3 V supply in most designs |
| Configuration Storage | VIN/PID, port count, removable status, and power mode set via external I²C/SPI EEPROM or mask ROM |
| Operating Temp | 0°C to +70°C ambient; validated for commercial docking and peripheral hub environments |
| Crystal Input | 12 MHz ±500 ppm crystal (600 µW drive level) or optional 27/48 MHz oscillator |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | 5 V nominal input for internal regulator; supports bus- or self-powered operation |
| VDDIO | I/O voltage supply | 3.3 V output from internal regulator; powers USB PHY and digital logic |
| XTAL_IN / XTAL_OUT | Clock input/output | Connects to 12 MHz crystal; internal PLL generates USB timing; no external oscillator required |
| DP/DM (Upstream) | USB 2.0 differential pair | Direct connection to host controller; integrated 45 Ω termination and ESD protection |
| DP1–DP4 / DM1–DM4 | Downstream USB differential pairs | Four independent HS/FS/LS-capable ports; each with integrated termination and overcurrent sensing |
| PWR#1–PWR#4 | Port power enable (active-low) | Controls individual or ganged 5 V power delivery to downstream ports via external FETs |
| OVR#1–OVR#4 | Overcurrent fault indicator | Open-drain outputs signaling overcurrent condition per port; used for FET gate control or LED alert |
| LED1–LED4 (x2) | Status indicator control | Two pins per port (e.g., LEDA/LEDB) drive dual-color LEDs for activity/suspend/power status |
Key Features
| Feature | Design Value |
|---|---|
| Per-port transaction translator | Enables simultaneous high-speed-to-full-speed translation across all 4 ports without shared bottleneck |
| Integrated USB termination | Eliminates 8 external 45 Ω resistors; reduces layout complexity and signal integrity risk |
| Configurable power switching | I/O pins select individual or ganged port power control - simplifies compliance with USB Battery Charging spec |
| Internal 5 V-to-3.3 V regulator | Removes need for external LDO in bus-powered designs; supports single-supply 5 V system integration |
| EEPROM-based customization | VIN/PID, port removability, and clock source selected at runtime - enables one BOM for multiple SKUs |
Applications
| Docking Station Hub | Monitor-Integrated Hub |
|---|---|
Use Scenario: Laptop connects to multi-peripheral dock with USB-A, Ethernet, and display interfaces. IC Role / Device Role / Timing Role: USB 2.0 hub controller managing four downstream ports with independent TTs for concurrent keyboard/mouse/storage traffic. Use Value: Eliminates USB bandwidth contention between full-speed peripherals while maintaining low power draw (<150 mW typical). |
Use Scenario: Smart monitor provides USB upstream link to PC and downstream ports for keyboard, webcam, and flash drive. IC Role / Device Role / Timing Role: Embedded hub controller with integrated 5 V regulator and port status LEDs for OEM panel integration. Use Value: Reduces BOM by 12 components (resistors, regulators, pull-ups) and fits 7×7 mm footprint behind thin bezel. |
| Multi-Function Printer Hub | Gaming Console Accessory Hub |
Use Scenario: All-in-one printer exposes USB host port for scanner, fax, and storage functions alongside printer engine. IC Role / Device Role / Timing Role: Configurable hub with non-removable upstream and removable downstream ports per USB spec requirements. Use Value: EEPROM-based port removability setting ensures correct descriptor reporting to host OS without firmware update. |
Use Scenario: External hub adds USB ports to console for headset, controller charger, and streaming capture device. IC Role / Device Role / Timing Role: Low-power hub with overcurrent detection and dual-status LEDs per port for user feedback. Use Value: OVR# pins directly drive external FET gates for automatic port disable during short-circuit events - no external logic needed. |
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 |
|---|---|---|---|
| Microchip USB2514B | 4-port hub with single shared TT; no integrated regulator; requires external 3.3 V and 1.8 V supplies | Lacks per-port TT concurrency; higher BOM count due to missing internal termination and regulators | Preferred when cost-sensitive designs accept reduced FS/LS throughput under mixed-device load |
| Texas Instruments TUSB2036 | 3-port hub; no MCU; fixed VID/PID; no EEPROM support; requires external crystal and regulators | No runtime configurability; limited to static port assignment and basic power management | Selected for ultra-low-cost, fixed-function hubs where feature flexibility is unnecessary |
Compared with USB2514B and TUSB2036, the CY7C65642-48AXCT delivers superior concurrent full-speed throughput via per-port TTs, reduces BOM by integrating regulator and termination, and enables SKU consolidation through EEPROM-based configuration - critical for scalable peripheral manufacturing.
Availability
CY7C65642-48AXCT is available at Aetrix Electronics and suitable for docking stations, monitor-integrated hubs, and multi-function printers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for CY7C65642-48AXCT 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, sensing, connectivity, and security ICs for industrial, automotive, and consumer applications.
CY7C65642 belongs to the EZ-USB™ HX2VL product line - designed specifically for low-power, high-integration USB 2.0 hub systems where BOM reduction, configurability, and robust ESD recovery are mandatory.
FAQ
Does CY7C65642-48AXCT support USB Battery Charging (BC) 1.2 specification?
Yes - it supports BC 1.2 through configurable power switching modes (individual or ganged) and dedicated PWR# outputs that interface with external BC-compliant power switches. The device reports port type (SDP/CDP/DCP) via EEPROM-configurable descriptors, and overcurrent detection aligns with BC 1.2 fault response timing requirements.
Can the CY7C65642-48AXCT operate without an external crystal?
Yes - it accepts 27 MHz or 48 MHz LVCMOS oscillator input on the XTAL_IN pin, bypassing the crystal. The internal PLL locks to the oscillator signal and generates precise USB timing; no crystal load capacitors or external tuning are required in this configuration.
What is the maximum current rating for the PWR# output pins?
The PWR# pins are open-drain, active-low enable signals rated for 8 mA sink current at 3.3 V. They are not power delivery pins - they drive the gate of external N-channel MOSFETs (e.g., Si2302) that switch 5 V to downstream ports. No internal power FETs are present.
Is EEPROM programming required for basic hub functionality?
No - default operation uses mask ROM configuration: 4 downstream ports, all removable, VID=0x04B4/PID=0x6564, and crystal clock source. EEPROM is optional for custom VID/PID, port removability, or ganged power mode - enabling immediate bring-up without programming.
CY7C65642-48AXCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Hub Controller
- Interface:
- USB
- Standards:
- USB 2.0
- Voltage - Supply:
- 3.15V ~ 5.25V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 48-TQFP (7x7)
- Grade:
- -
- Qualification:
- -
CY7C65642-48AXCT FAQ
1.How can I place an order for CY7C65642-48AXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65642-48AXCT 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 CY7C65642-48AXCT reliable?
The price and inventory of CY7C65642-48AXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65642-48AXCT is usually 5 days.
3.What payment methods are accepted for CY7C65642-48AXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65642-48AXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65642-48AXCT?
CY7C65642-48AXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65642-48AXCT 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 CY7C65642-48AXCT?
For technical support, including CY7C65642-48AXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65642-48AXCT requirements.
6.How does Aetrix verify that CY7C65642-48AXCT is sourced from the original manufacturer or authorized distributors?
All CY7C65642-48AXCT 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 CY7C65642-48AXCT meets industry standards.
7.What is the process for return or replacement of CY7C65642-48AXCT?
All CY7C65642-48AXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65642-48AXCT, 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 CY7C65642-48AXCT part is unused and in its original packaging.
Return procedure for CY7C65642-48AXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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