Infineon Technologies CY7C65630-56LTXCT

Overview

CY7C65630-56LTXCT from Cypress Semiconductor is a 4-port, single-transaction-translator (1-TT) USB 2.0 hub controller supporting high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) operation with integrated USB 2.0 PHYs, internal voltage regulator, and on-chip termination resistors. It operates from a single 3.3 V supply and uses a 24 MHz external crystal with integrated PLL for clock generation. Designed for space-constrained industrial and automotive applications (–40 °C to +85 °C), it enables compact, low-BOM hub designs such as monitor-integrated hubs and docking stations.

For engineers reviewing the CY7C65630-56LTXCT datasheet, CY7C65630-56LTXCT pinout, CY7C65630-56LTXCT application, or CY7C65630-56LTXCT equivalent, key selection criteria include its 4-port 1-TT architecture, QFN-56 package footprint, SPI EEPROM configurability (VID/PID/number of removable ports/power settings), integrated pull-up/pull-down/termination resistors, and USB-IF certification (TID# 30000009).

Technical Context

The CY7C65630 implements a USB 2.0 hub repeater for same-speed traffic and a dedicated transaction translator (TT) for high-speed-to-full/low-speed split transactions. All four downstream ports share one TT, limiting concurrent high-speed-to-full-speed bandwidth but reducing silicon area and power.

It supports both bus-powered and self-powered modes, with configurable overcurrent detection polarity, port power switching (ganged or independent), and programmable port indicators via SPI EEPROM. Initialization relies on external SPI EEPROM for VID/PID/DID, port count, power settings, and descriptor strings - no factory-programmed defaults.

Key Specifications

Pinout & Package

Package: 56-pin QFN (7 mm × 7 mm, 0.4 mm pitch), exposed thermal pad, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB 2.0 hub controller applications.

Compared with CY7C65640-56LTXC, CY7C65630-56LTXCT offers field-reprogrammable configuration via SPI EEPROM, enabling late-stage VID/PID assignment and port removability tuning. Versus UPD720114GA, it trades dual-TT bandwidth for lower BOM count, single-supply operation, and smaller footprint - ideal for cost- and space-sensitive industrial hubs.

Availability

CY7C65630-56LTXCT is available at Aetrix Electronics and suitable for monitor-integrated hubs, industrial HMI panels, and docking stations requiring stable component supply, long-term lifecycle support, and automotive-grade temperature performance.

Supply support for CY7C65630-56LTXCT 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 USB, memory, PSoC, and connectivity solutions for industrial, automotive, and consumer markets.

The EZ-USB HX2LP™ family was designed specifically for ultra-low-power, space-constrained USB 2.0 hub applications where BOM reduction, thermal efficiency, and field-configurability are critical - targeting embedded monitors, docking systems, and ruggedized peripherals.

FAQ

What is the minimum required external component count for basic CY7C65630-56LTXCT operation?

A functional CY7C65630-56LTXCT design requires only a 24 MHz crystal, decoupling capacitors, and an SPI EEPROM (minimum 2 kB). All USB termination, pull-up, and pull-down resistors are integrated - eliminating ≥12 discrete passives versus legacy hub controllers. No external voltage regulators or level shifters are needed due to the single 3.3 V supply and internal regulation.

Does CY7C65630-56LTXCT support USB Battery Charging (BC) 1.2 specification?

No. The CY7C65630-56LTXCT implements only the USB 2.0 hub class specification and does not include BC1.2 detection logic, dedicated charging ports (DCP/CDP/SDP), or proprietary charging handshake support. It can coexist with BC-compliant upstream hosts or downstream chargers but does not negotiate or modify charging behavior.

Can the number of active downstream ports be reduced below four via EEPROM configuration?

Yes. The SPI EEPROM supports configuration loads (0xD2 or 0xD4) that define which ports are enabled or marked as removable. Setting fewer than four ports as active disables unused ports at enumeration time - reducing power consumption and preventing host enumeration of unpopulated connectors. This is commonly used in 2-port or 3-port variants sharing the same PCB layout.

Is CY7C65630-56LTXCT compatible with USB 3.x hosts or peripherals?

No. CY7C65630-56LTXCT is strictly a USB 2.0 hub controller and operates only at high-speed (480 Mbps), full-speed (12 Mbps), or low-speed (1.5 Mbps). It cannot connect to or negotiate with USB 3.x SuperSpeed (5 Gbps) links. When connected to a USB 3.x port, it operates in backward-compatible USB 2.0 mode using the SS-capable port's USB 2.0 lanes.