CY7C65632-28LTXCT - USB 2.0 4-Port Hub Controller | Infineon
Référence : CY7C65632-28LTXCT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.85 | $3,85 |
| 10 | $3.42 | $34,20 |
| 100 | $2.89 | $289,00 |
| 500 | $2.45 | $1 225,00 |
| 1 000 | $2.15 | $2 150,00 |
| 2 500 | $1.92 | $4 800,00 |
CY7C65632-28LTXCT Présentation
A USB 2.0 hub controller is a function-specific integrated circuit that aggregates one upstream USB port into multiple downstream USB ports while managing enumeration, power switching, bus enumeration, and transaction translation between the host and connected devices. It belongs to the broader category of USB Interface ICs, within the larger Interface ICs and Integrated Circuits taxonomy. By placing the hub logic and downstream port control on a single die, the HX2VL part eliminates the external TT IC typically required by multi-TT hubs and cuts the BOM for 2- and 4-port hubs.
Key features include integrated upstream and downstream USB termination resistors, integrated port-status indicator control (LED drivers), an integrated 24 MHz crystal amplifier, an in-system EEPROM interface for vendor ID / product ID / port-remap customization, and per-port overcurrent detection. The device is configurable via GPIOs to expose 2-port or 4-port topologies and supports both self-powered and bus-powered hub operation. Suspend current consumption is held to a minimum to meet USB 2.0 suspend-current requirements for bus-powered applications.
Internally, the HX2VL uses a serial-interface engine for the upstream port and a hub repeater/transaction-translator architecture for the downstream ports, with port-mapping logic driven by the optional external EEPROM. The integrated termination and indicator control reduce PCB area to roughly a 4-layer design with no external PHY, which is the dominant reason designers select this part for compact hub dongles and embedded USB ports.
Typical applications include standalone 4-port USB 2.0 hubs for consumer desktops, laptop port replicators, monitors with embedded USB hubs, embedded motherboards, and printer front-panel USB ports. The part is also deployed in industrial USB expansion modules where the GPIO-driven port remapping supports non-standard pin assignments.
Designers should keep the 24 MHz crystal or clock source within 5 mm of the XIN/XOUT pins, route the DP/DM differential pairs with 90-ohm differential impedance, and place the upstream port termination near the device pins to preserve USB 2.0 high-speed signal integrity. The optional EEPROM is only required if custom VID/PID or port-disable remapping is needed.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes drawn from the manufacturer datasheet and field experience, in a form that distributors' product pages do not offer.
Alternatives de remplacement direct pour CY7C65632-28LTXCT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec CY7C65632-28LTXCT (même facteur de forme et même empreinte) — différant par Operating Temperature, Package, RoHS Status, Supply Voltage, USB Specification.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
CY7C65632-28LTXC
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CY7C65642-28LTXC
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CY7C65642-28LTXCT
✅ Remplacement direct✓ En stock
$2.45 / unité
Voir la fiche technique →TUSB4020BI
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
GL850G
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
FE1.1S
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CY7C65632-28LTXCT Spécifications
| Product Type | USB 2.0 Hub Controller |
| Series | EZ-USB HX2VL |
| USB Specification | USB 2.0 (High-Speed / Full-Speed / Low-Speed) |
| Downstream Ports | Up to 4 (2/4 configurable) |
| Transaction Translator | Single TT |
| Tension d'alimentation | 3.3 V |
| Température de fonctionnement | 0 C to +70 C |
| Clock Source | 24 MHz external crystal (integrated PLL) |
| Integrated Resistors | Upstream and downstream termination |
| Indicator Control | Integrated port-status LED drivers |
| Configuration Interface | GPIO + optional EEPROM |
| Boîtier | 28-QFN (5x5 mm, 0.9 mm height) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Lead-Free | Yes |
Configuration des broches de CY7C65632-28LTXCT
| Broche 1 | GND — Ground reference |
| Broche 2 | VCC — 3.3 V power supply |
| Broche 3 | XIN — 24 MHz crystal input |
| Broche 4 | XOUT — 24 MHz crystal output |
| Broche 5 | RESET — Active-low reset (per datasheet) |
| Broche 6 | DM1 — Downstream port 1 D- (per datasheet) |
| Broche 7 | DP1 — Downstream port 1 D+ (per datasheet) |
| Broche 8 | VCC — 3.3 V power supply |
| Broche 9 | GND — Ground reference |
| Broche 10 | DM2 — Downstream port 2 D- (per datasheet) |
| Broche 11 | DP2 — Downstream port 2 D+ (per datasheet) |
| Broche 12 | DM3 — Downstream port 3 D- (per datasheet) |
| Broche 13 | DP3 — Downstream port 3 D+ (per datasheet) |
| Broche 14 | DM4 — Downstream port 4 D- (per datasheet) |
| Broche 15 | DP4 — Downstream port 4 D+ (per datasheet) |
| Broche 16 | GND — Ground reference |
| Broche 17 | VCC — 3.3 V power supply |
| Broche 18 | LED/IND — Port status indicator control (per datasheet) |
| Broche 19 | OVC — Overcurrent sense input (per datasheet) |
| Broche 20 | PWR — Power switch control / GPIO (per datasheet) |
| Broche 21 | DM0 — Upstream port D- (per datasheet) |
| Broche 22 | DP0 — Upstream port D+ (per datasheet) |
| Broche 23 | GND — Ground reference |
| Broche 24 | VBUS — USB VBUS detect (per datasheet) |
| Broche 25 | SDA — EEPROM I2C data (per datasheet) |
| Broche 26 | SCL — EEPROM I2C clock (per datasheet) |
| Broche 27 | GPIO — Configuration GPIO (per datasheet) |
| Broche 28 | EP — Exposed thermal pad, connect to GND |
Applications typiques
CY7C65632-28LTXCT convient pour 6 applications: Standalone 4-Port USB 2.0 Hub, Monitor With Integrated USB Hub, Laptop Port Replicator / Docking Station, Embedded Motherboard / Industrial PC, Printer and Multifunction Device USB Ports, USB Expansion Module for Test Equipment.
Standalone 4-Port USB 2.0 Hub
The CY7C65632-28LTXCT is the canonical 4-port USB 2.0 hub controller for self-powered consumer hubs and laptop port replicators. Its integrated termination resistors eliminate external components, and the integrated port-status LED drivers cut the BOM cost versus discrete hub designs. According to the Infineon datasheet, the single-TT architecture handles typical keyboard/mouse/printer traffic with negligible throughput penalty. Placed upstream of four downstream USB-A ports with a 5V/2A self-powered regulator and a 24 MHz crystal, it delivers a complete USB 2.0 hub on roughly 200 mm² of 4-layer PCB.
Recommandé
Monitor With Integrated USB Hub
Built into LCD monitors, the CY7C65632-28LTXCT provides 2- or 4-port USB 2.0 connectivity to the host PC while drawing its 5V from the monitor's internal power supply. According to the HX2VL datasheet, the device's configurable GPIO/EEPROM port mapping lets manufacturers ship the same PCB for different panel SKUs. Its small 5x5 mm 28-QFN footprint fits behind the monitor's side USB ports without bulk, and the integrated LED control directly drives the front-panel port-status indicators without additional drivers.
Recommandé
Laptop Port Replicator / Docking Station
The CY7C65632-28LTXCT sits inside laptop port replicators as the USB-side switch, expanding a single upstream USB-C or USB-A port from the host laptop to 2-4 peripheral ports. According to the Infineon datasheet, its suspend-current handling allows compliance with USB 2.0 bus-powered operation when the dock draws only upstream power. The optional EEPROM supports custom VID/PID enumeration so multi-port docks can present enumerated functions correctly to the host.
Recommandé
Embedded Motherboard / Industrial PC
The CY7C65632-28LTXCT is widely used on embedded motherboards and IPC chassis to expose 2 or 4 USB 2.0 ports without a separate hub IC on each board revision. According to the Infineon datasheet, the device's GPIO-driven port remap allows the same hub die to be configured for 2- or 4-port board layouts, reducing SKU complexity. With commercial-grade 0-70 C operation and integrated termination, it removes the need for external PHY or TT chips in standard IPC designs.
Recommandé
Printer and Multifunction Device USB Ports
Printer and multifunction devices often expose front-panel USB-A ports for walk-up printing, and the CY7C65632-28LTXCT is well suited to that role. According to the Infineon datasheet, its integrated port-current-limit logic plus overcurrent pins can connect directly to the printer's 5V rail. The 5x5 mm 28-QFN footprint allows the hub to sit on the printer's small control board without competing for space with the formatter ASIC.
Recommandé
USB Expansion Module for Test Equipment
In test & measurement equipment and laboratory expansion chassis, the CY7C65632-28LTXCT expands an upstream USB port into multiple instrument-side ports with stable enumeration across reboots. According to the HX2VL datasheet, the EEPROM-configurable VID/PID prevents port-bounce on repeated enumeration, important for automated test software that tracks devices by VID/PID. The exposed thermal pad and 0.9 mm package height simplify design on small backplane PCBs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour CY7C65632-28LTXCT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | CY7C65632-28LTXC | CY7C65642-28LTXC | TUSB4020BI | GL850G | FE1.1S |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Texas Instruments | Genesys Logic | Terminus Technology |
| Package | 28-QFN (5x5) | 28-QFN (5x5) - same | 28-QFN (5x5) - same | 28-QFN (5x5) - same | 28-QFN (5x5) - same | 28-QFN (5x5) - same |
| Downstream Ports | 4 (2/4 configurable) | 4 (2/4 configurable) - same | 4 - same | 2 (cascadable) | 4 - same | 4 - same |
| Transaction Translator | Single TT | Single TT | Multi-TT | Multi-TT | Single TT | Single TT |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V (5 V-tolerant I/O) | 3.3 V | 5 V (3.3 V logic OK) |
| Operating Temperature | 0 C to +70 C | 0 C to +70 C | 0 C to +70 C (industrial -I variant available) | -40 C to +85 C | 0 C to +70 C | 0 C to +70 C |
| Battery Charger Detection | No | No | No | Yes | Yes (dedicated CDP/DCP) | No |
| EEPROM Interface | Yes (I2C, optional) | Yes (I2C, optional) | Yes (I2C, optional) | Yes (I2C/SMBus) | Yes (vendor-config strapping) | Yes (configuration via strapping) |
| Single-Unit Price (approx USD, 2026-10-16) | 3.85 | 3.45 | 4.10 | 4.20 | 0.85 | 0.70 |
Principaux différenciateurs
- Single-TT with lowest BOM in the HX2VL family (vs CY7C65642-28LTXC)
- Integrated termination and LED drivers (vs TUSB4020BI)
- Optional EEPROM configurability is simpler (vs FE1.1S)
Notes de conception
Route the DP/DM high-speed differential pairs with 90-ohm differential impedance, length-matched within 150 mil, and keep them over a continuous ground reference plane. Place the 24 MHz crystal within 5 mm of XIN/XOUT with a guard ring tied to GND to suppress coupled noise. Discontinuities (vias, plane splits) directly increase high-speed eye-diagram jitter and can fail USB-IF compliance.
Bypass the 3.3 V supply with a 1 uF ceramic plus 0.1 uF decoupling cap directly at each VCC pin, plus a 10 uF bulk cap at the regulator output. The HX2VL PLL is sensitive to VCC ripple: estimated 50 mV ripple may shift the 24 MHz PLL loop and increase jitter, so use a low-noise LDO (e.g., TLV1117LV33) rather than a switching regulator at the 3.3 V rail when possible.
Do not omit the 24 MHz crystal load capacitors (typically 18-27 pF depending on the crystal's CL spec) - the HX2VL will not enumerate correctly without a valid clock. Also do not leave DP0/DM0 (upstream port) floating during reset; per datasheet they must see the 15K pull-down to GND for proper USB 2.0 detect. Skipping the optional EEPROM but leaving SDA/SCL floating is fine - the device works in default-VID/PID mode.
Estimated: at full 4-port USB 2.0 high-speed operation the CY7C65632-28LTXCT dissipates roughly 200-300 mW. With the 28-QFN 5x5 mm exposed pad and a standard 2-layer 1-oz copper board, the junction-to-ambient thermal resistance is in the order of 50 C/W, yielding a junction rise of approximately 15 C above ambient at worst case. For sealed enclosures without airflow, add copper thermal pads under EP or upgrade to a 4-layer board.
Informations de conformité
RoHS and lead-free status confirmed by the Infineon part page and distributor listings. Not AEC-Q100 qualified (commercial temperature). Industrial-grade -I variants (e.g., CY7C65642-28LTXI) exist for -40 C to +85 C operation.
