CY7C65640A-LTXC - USB 2.0 Hub Controller | Infineon
料号： CY7C65640A-LTXC ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
CY7C65640A-LTXC 概述
A USB hub controller is an interface IC that manages one upstream USB connection and multiple downstream ports. It belongs to the hierarchy of USB interface controller, interface IC, and semiconductor. The controller coordinates USB signaling, port attachment, downstream status, and hub power-management functions, allowing external USB devices to share a host interface through a controlled internal hub.
The CY7C65640A-LTXC integrates 1.5 kΩ upstream pull-up resistors for full-speed operation, 15 kΩ downstream pull-down resistors, and series termination resistors on USB D+ and D- pins. It also supports an external 24 MHz crystal with an integrated PLL, in-system EEPROM programming, and integrated port-status indicator control. These features reduce the number of external USB termination components and support deterministic clocking for USB data transfer.
The device is packaged in an 8 mm × 8 mm, 0.90 mm-high MO-220 QFN-56 package. The verified source identifies integrated upstream and downstream termination resistors, external crystal support, integrated PLL, and in-system EEPROM programming as principal features. Exact hub-port current limits, transceiver timing values, and programming details are not included in the supplied data and should be confirmed in the manufacturer datasheet before design release.
Typical applications include USB hubs, USB monitors, docking stations, industrial USB interfaces, peripheral connection panels, and embedded USB expansion systems. The 0 °C to 70 °C range is appropriate for commercial-temperature equipment rather than automotive or extended industrial environments. Designers should preserve the specified 3.3 V supply range and validate USB routing, crystal requirements, thermal performance, and hub power budgets on the final PCB.
The key design consideration is that this controller is an obsolete TetraHub product according to the supplied community result. New designs should confirm lifecycle status with the manufacturer or an authorized distributor, while existing designs should compare any proposed replacement against pinout, USB electrical behavior, firmware requirements, and power-management functions. This page synthesizes verified source information, practical design constraints, and replacement-search findings rather than presenting unverified substitute specifications.
直接替换替代料： CY7C65640A-LTXC ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： CY7C65640A-LTXC （相同外形与封装尺寸） ——差异在于 Device Type.
快速对比工具——选择替代料号进行并排对比：
CY7C65630-56LTXC
✅ 直接替换📋 参考替代料（不在目录中）
CY7C65630-56LTXI
✅ 直接替换📋 参考替代料（不在目录中）
CY7C65640A-LFXC
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →CY7C65640A-LFXCT
✅ 直接替换📋 参考替代料（不在目录中）
CY7C65640B-56LFXC
✅ 直接替换📋 参考替代料（不在目录中）
CY7C65640A-LTXCT
✅ 直接替换📋 参考替代料（不在目录中）
CY7C65640A-LTXC 规格参数
| Product Type | High-speed USB 2.0 hub controller |
| USB Protocol | USB 2.0 |
| 电源电压 | 3.15 V to 3.45 V |
| Nominal Supply Voltage | 3.3 V |
| Device Type | Line / bus controller |
| 工作温度 | 0 °C to 70 °C |
| 封装 | 8 mm × 8 mm, 0.90 mm height, MO-220 QFN-56 |
| 引脚数 | 56 pins |
| 安装类型 | Surface mount |
| External Clock | 24 MHz crystal |
| Clock Support | Integrated PLL |
| Upstream Pull-Up Resistor | 1.5 kΩ |
| Downstream Pull-Down Resistors | 15 kΩ |
| Series Termination | Integrated on upstream and downstream D+ and D- pins |
| Programming | In-system EEPROM programming |
| Port Status Control | Integrated port status indicator control |
| 生命周期状态 | Obsolete, according to supplied community result |
CY7C65640A-LTXC 8 mm × 8 mm, 0.90 mm height, mo-220 qfn-56 引脚配置指南
CY7C65640A-LTXC（8 mm × 8 mm, 0.90 mm height, mo-220 qfn-56 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： CY7C65640A-LTXC.
请参阅 数据手册 以查看完整引脚配置。
典型应用
CY7C65640A-LTXC 适用于 6 应用s: Embedded USB 2.0 Hub, USB Dock, Industrial USB Expansion Panel, USB Peripheral Connection Panel, Legacy USB Monitor Hub, USB Test and Measurement Fixture.
Embedded USB 2.0 Hub
The CY7C65640A-LTXC fits an embedded USB 2.0 hub because it is specifically identified as a high-speed USB hub controller and includes upstream and downstream termination resistors. Place the controller between a host-facing USB connection and the hub’s downstream ports, then validate the 3.15 V to 3.45 V supply and the 24 MHz crystal requirement. Its 0 °C to 70 °C rating supports commercial-temperature equipment, while the obsolete lifecycle status makes lifecycle and supply planning essential.
推荐
USB Dock
A USB dock can use the CY7C65640A-LTXC to manage downstream USB connectivity from a single upstream host port. The integrated 1.5 kΩ upstream pull-up and 15 kΩ downstream pull-down resistors can simplify USB signal termination around the controller. Because the verified data does not specify every port-current limit or power-switch requirement, the dock designer must establish the complete power budget and USB electrical compliance before production.
推荐
Industrial USB Expansion Panel
The controller is suitable for an industrial USB expansion panel where several USB devices need a common upstream interface and commercial-temperature operation is acceptable. Its 3.3 V-class supply range, integrated termination, PLL-based clock support, and in-system EEPROM programming help create a repeatable hub platform. The 0 °C to 70 °C specification is not sufficient for extended industrial environments, so enclosure temperature, USB cable ESD protection, and power-supply headroom need separate validation.
推荐
USB Peripheral Connection Panel
In a USB peripheral connection panel, the CY7C65640A-LTXC can provide a controlled hub point for external equipment such as keyboards, storage devices, or service adapters. Integrated USB series termination reduces the number of discrete signal-conditioning parts, while port-status indicator control supports user-visible connection feedback. The designer must still verify enumeration behavior, device attach/detach requirements, and the exact downstream-port current limits in the official documentation.
推荐
Legacy USB Monitor Hub
The CY7C65640A-LTXC is appropriate for a legacy USB monitor or test peripheral that needs a multiport USB 2.0 interface. Its four-port TetraHub context, integrated termination, and external 24 MHz clock support provide a defined hardware basis for a USB hub subsystem. Because the product is obsolete, use it primarily for repair or continuity of an existing platform; a new monitor design should compare actively supported hub controllers before committing the PCB.
推荐
USB Test and Measurement Fixture
A USB test fixture can use the CY7C65640A-LTXC when the fixture must present a repeatable multiport USB hub interface to instruments or service tools. The controller’s USB 2.0 operation, integrated PLL support, and EEPROM programming capability help simplify a deterministic embedded test hub. The verified 0 °C to 70 °C range is suitable for lab equipment, but obsolete lifecycle status requires careful counterfeit-risk, traceability, and replacement planning.
推荐
推荐产品汇总
工程参考数据： CY7C65640A-LTXC ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | CY7C65630-56LTXC | CY7C65630-56LTXI | CY7C65640A-LFXC | CY7C65640B-56LFXC | CY7C65640A-LTXCT |
|---|---|---|---|---|---|---|
| Package | QFN-56, 8 mm × 8 mm, 0.90 mm height | QFN-56 | QFN-56 | QFN-56 | QFN-56 | QFN-56 |
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Number of Pins | 56 pins | 56 pins | 56 pins | 56 pins | 56 pins | 56 pins |
关键差异点
- Known TetraHub USB 2.0 controller platform （对比 CY7C65630-56LTXI)
- Integrated USB termination support （对比 CY7C65630-56LTXC)
- Integrated PLL and in-system EEPROM programming （对比 CY7C65630-56LTXI)
设计说明
Design the 3.3 V hub rail with the controller’s verified 3.15 V to 3.45 V operating range in mind. Check USB downstream-port current requirements separately because the supplied data does not specify complete port-current limits. Use a supply with adequate transient response, place local bypass capacitors close to the supply pins, and verify startup current, inrush, and downstream power-switch behavior on the finished board.
Route USB D+ and D- pairs as controlled-impedance, tightly coupled traces with minimal stubs and continuous return paths. Keep the external 24 MHz crystal and its load network close to the controller, and follow the manufacturer’s recommended grounding and via arrangement. Because this is a 56-pin QFN package, inspect solder joints and exposed-pad thermal connections during assembly and use a land pattern derived from the official package drawing.
Do not approve a substitute solely because its part number is similar or its package is labeled QFN-56. Verify pin assignments, USB electrical timing, termination values, clock requirements, EEPROM programming, port-status behavior, and lifecycle status. In particular, the community report for CY7C65630-56LTXC is only a candidate statement and does not constitute a formal manufacturer cross-reference.
The verified operating range is 0 °C to 70 °C, so calculate the maximum enclosure temperature and the temperature rise from USB-power dissipation rather than assuming the ambient rating applies directly to the controller. Confirm the exposed-pad connection, copper area, solder mask, and thermal vias using the package guidance. The supplied data does not provide thermal resistance or power dissipation figures, so these values must be obtained from the manufacturer datasheet.
合规信息
The supplied verified data does not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable because the supplied data identifies a commercial-temperature USB interface IC rather than an automotive-qualified device.
