My Inquiry
My Account
Infineon Technologies CY7C65634-48AXC
- Part No.:
- CY7C65634-48AXC
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 48-LQFP
- Datasheet:
-
CY7C65634-48AXC.pdf
- Description:
- IC USB HUB CTRL 2PORT 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,740
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY7C65634-48AXC from Infineon is a USB 2.0 hub controller with single transaction translator, 4 downstream ports (FS/LS compatible), integrated 5 V to 3.3 V regulator, and 2K ROM/64-byte RAM MCU - deployed in embedded peripheral hubs requiring bus- or self-powered operation with ESD recovery and port-level overcurrent detection.
For engineers reviewing the CY7C65634-48AXC datasheet, CY7C65634-48AXC pinout, CY7C65634-48AXC application, or CY7C65634-48AXC equivalent, key selection criteria include TT architecture, 48-pin TQFP package compatibility, 12 MHz ±500 ppm crystal support, individual/ganged power switching configuration, and EEPROM-based VID/PID programmability.
Technical Context
The CY7C65634-48AXC implements a single-TT USB 2.0 hub architecture with upstream HS PHY and four downstream FS/LS PHYs, enabling high-speed host communication while translating split transactions to full/low-speed devices. Its integrated MCU executes enumeration, suspend/resume coordination, and GPIO-controlled port management without external firmware.
Power architecture supports dual-mode operation: internal 5 V-to-3.3 V regulation (with NC for external 3.3 V supply) and auto-switching between bus- and self-powered modes. Internal termination resistors, pull-up/down resistors, and power-failure detection are embedded to eliminate discrete passives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | USB 2.0 compliant (TID# 30000060); supports HS upstream, FS/LS downstream |
| Downstream Ports | 4 configurable ports with individual/ganged power switching and overcurrent detection |
| Transaction Translator | Single TT shared across all downstream ports - reduces silicon area and cost vs. per-port TT |
| Internal Regulator | Integrated 5 V-to-3.3 V regulator; eliminates need for external LDO in self-powered designs |
| Crystal Support | 12 MHz ±500 ppm crystal (600 µW drive level) or optional 27/48 MHz oscillator input |
| MCU Resources | 2K ROM + 64-byte RAM MCU for enumeration, port control, and EEPROM configuration parsing |
| Operating Temp | 0°C to +70°C ambient - validated for commercial industrial edge nodes and peripheral docking stations |
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 | 5 V Power Input | Main supply for internal regulator; supports bus- or self-powered operation |
| VDDIO | 3.3 V I/O Supply | Supplies USB PHY and digital logic; can be sourced internally or externally |
| D+ / D− (Up) | Upstream Differential Pair | Connects to host controller; HS-capable with integrated termination |
| D+ / D− (Dn) | Downstream Differential Pairs (n=1–4) | Each pair supports FS/LS devices; includes integrated termination and pull-downs |
| PWR#n / OVR#n | Port Power Enable / Overcurrent Flag (n=1–4) | Active-low enable for port power switch; open-drain OVR# signals fault condition |
| LEDnA / LEDnB | Port Status Indicator Outputs (n=1–4) | Drive dual-color LEDs per port for activity/enable status per USB spec |
| XTAL_IN / XTAL_OUT | Crystal Oscillator Interface | Supports 12 MHz fundamental-mode crystal; internal PLL generates USB clocks |
| I2C_SDA / I2C_SCL | EEPROM Configuration Interface | Loads VID/PID, port count, removable/non-removable settings at power-on reset |
Key Features
| Feature | Design Value |
|---|---|
| Single Transaction Translator | Reduces die size and BOM cost versus multi-TT hubs while maintaining USB 2.0 compliance for mixed-speed topologies |
| Integrated Power Regulation | Eliminates external 3.3 V LDO in self-powered applications; NC pin enables external regulator use when needed |
| Configurable Port Management | EEPROM- and pin-driven configuration of port count, removability, power mode (ganged/individual), and clock source |
| On-chip Termination & Biasing | Embedded upstream pull-up, downstream pull-downs, and differential terminations reduce PCB footprint and layout complexity |
| ESD Recovery Circuitry | Dedicated internal power-failure detection resets USB state machine after ESD events without host intervention |
Applications
| USB Peripheral Docking Station | Industrial Human-Machine Interface (HMI) |
|---|---|
Use Scenario: Compact desktop dock aggregating keyboard, mouse, flash drive, and serial adapter via single upstream USB cable. IC Role / Device Role / Timing Role: USB 2.0 hub controller managing four downstream ports with individual power control and status indication. Use Value: Low-power operation extends thermal margin; integrated regulator and termination cut BOM by ≥6 passives per port. | Use Scenario: Factory-floor HMI panel connecting barcode scanner, printer, and USB-configurable PLC interface. IC Role / Device Role / Timing Role: Robust hub controller with overcurrent protection and ESD recovery for unattended 24/7 operation. Use Value: Auto-switching power mode ensures reliable function during host USB port voltage sag; OVR# flags enable predictive maintenance. |
| Medical Point-of-Care Device | Embedded Test & Measurement Tool |
Use Scenario: Portable diagnostic device with USB-connected ECG sensor, SD card reader, and firmware update port. IC Role / Device Role / Timing Role: Configurable 4-port hub supporting removable/non-removable port assignment per FDA design controls. Use Value: EEPROM-based VID/PID allows field-updatable device identity; single TT meets latency requirements for real-time sensor streaming. | Use Scenario: Benchtop oscilloscope accessory module adding USB-TTL, USB-I²C, and USB-SPI interfaces. IC Role / Device Role / Timing Role: Hub controller with GPIO-configurable reference clock and polarity for flexible timing integration. Use Value: 12 MHz crystal option simplifies clock sourcing; LEDnA/nB outputs directly drive status indicators without buffer ICs. |
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 |
|---|---|---|---|
| CY7C65632-28AXC | 2-port variant in 28-pin QFN; identical TT, MCU, and regulator architecture | Lower port count; smaller footprint; reduced I/O count for space-constrained designs | Select when only two downstream ports are required and board area is critical |
| UPD720114GA-YF-BAC-A | Multi-TT hub (4 TT); higher power; requires external 3.3 V supply and clock buffer | Supports simultaneous high-bandwidth FS/LS devices; no integrated regulator or EEPROM interface | Select when concurrent full-speed device traffic demands per-port TT isolation |
Compared with CY7C65632-28AXC, this 48-pin variant delivers expanded port count and I/O flexibility; versus UPD720114, it trades TT isolation for lower BOM cost, integrated power, and simpler clocking - ideal for cost-sensitive, low-to-moderate bandwidth hubs.
Availability
CY7C65634-48AXC is available at Aetrix Electronics and suitable for USB peripheral docking stations, industrial HMIs, medical point-of-care devices, and embedded test tools requiring stable component supply and long-term lifecycle support.
Supply support for CY7C65634-48AXC 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 solutions for automotive, industrial, and IoT markets.
CY7C65634-48AXC belongs to the HX2VL family - designed specifically for ultra-low-power, high-integration USB 2.0 hub applications where BOM reduction, ESD resilience, and flexible configuration are critical.
FAQ
What power supply configurations does CY7C65634-48AXC support?
The device supports both bus-powered (5 V from upstream) and self-powered (external 5 V) modes, with automatic switching. It integrates a 5 V-to-3.3 V regulator; VDDIO may be supplied internally or externally via the NC pin. No external LDO is required for self-powered operation.
How is USB device identity configured on CY7C65634-48AXC?
Vendor ID (VID) and Product ID (PID) are loaded from an external I²C EEPROM at power-on reset. Configuration is persistent and field-updatable. Pin strapping options allow fallback to mask-ROM defaults if EEPROM is absent or unreadable.
Does CY7C65634-48AXC require an external crystal?
A 12 MHz ±500 ppm fundamental-mode crystal is the default clock source, connected to XTAL_IN/XTAL_OUT. Alternatively, a 27 MHz or 48 MHz oscillator may be used - selected via I/O pin configuration or EEPROM setting - eliminating crystal load capacitance tuning.
Can downstream ports be individually disabled or powered down?
Yes. Each downstream port has dedicated PWR#n (active-low enable) and OVR#n (open-drain overcurrent flag) pins. Firmware or hardware control can disable power to any port independently, and overcurrent events trigger corresponding OVR#n assertion for system-level fault handling.
CY7C65634-48AXC 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:
- -
CY7C65634-48AXC FAQ
1.How can I place an order for CY7C65634-48AXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65634-48AXC 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 CY7C65634-48AXC reliable?
The price and inventory of CY7C65634-48AXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65634-48AXC is usually 5 days.
3.What payment methods are accepted for CY7C65634-48AXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65634-48AXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65634-48AXC?
CY7C65634-48AXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65634-48AXC 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 CY7C65634-48AXC?
For technical support, including CY7C65634-48AXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65634-48AXC requirements.
6.How does Aetrix verify that CY7C65634-48AXC is sourced from the original manufacturer or authorized distributors?
All CY7C65634-48AXC 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 CY7C65634-48AXC meets industry standards.
7.What is the process for return or replacement of CY7C65634-48AXC?
All CY7C65634-48AXC units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65634-48AXC, 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 CY7C65634-48AXC part is unused and in its original packaging.
Return procedure for CY7C65634-48AXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY7C65634-48AXC Tags
-
PTN5150AHXMP
NXP USA Inc.
-
USB3740B-AI9-TR
Microchip Technology
-
USB3740B-AI2-TR
Microchip Technology
-
USB3300-EZK-TR
Microchip Technology
-
USB3300-EZK
Microchip Technology
-
FUSB340TMX
onsemi
-
FUSB302BMPX
onsemi
-
DP83826IRHBR
Texas Instruments
-
MCP2518FDT-E/QBB
Microchip Technology
-
FUSB302MPX
onsemi
-
MCP2518FDT-E/SL
Microchip Technology
-
FT260Q-R
FTDI, Future Technology Devices International Ltd
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
