CY7C68001-56LTXC USB 2.0 Controller | Cypress | 56-QFN
料号： CY7C68001-56LTXC ✓ 量产中CY7C68001-56LTXC 概述
An EZ-USB interface device is a dedicated USB connectivity and protocol-controlling component. In the product hierarchy, it is an interface IC, a USB controller, and ultimately a semiconductor designed to simplify USB peripheral implementation. Unlike a general-purpose microcontroller with integrated USB, the CY7C68001-56LTXC provides a dedicated parallel interface that allows an external master to manage USB transactions and peripheral functions without implementing the complete USB protocol stack in the host processor.
The verified product information identifies USB 2.0 operation, full-speed and high-speed support, a 3.3 V operating supply, and a parallel interface to the external system. The package is a 56-pin QFN with an exposed pad and an 8 mm by 8 mm footprint. The device is also documented for Compact Flash and one ATA or ATAPI device, while its ATA interface can enter a high-impedance state so that the ATA bus may be shared with another controller such as IEEE 1394.
The SX2 architecture is useful when an existing digital subsystem needs a dedicated USB interface rather than direct software control of USB low-level signaling. USB 2.0 full-speed and high-speed operation provide compatibility with common USB hosts and peripherals, while the parallel external interface separates the host-facing data path from USB protocol handling. The available 3.3 V supply requirement makes board-level integration straightforward for systems designed around contemporary 3.3 V digital logic.
Typical applications include USB-to-ATA storage adapters, USB-to-Compact Flash readers, board-level manufacturing test fixtures, embedded USB peripherals, and systems using a microprocessor, DSP, ASIC, or FPGA as the external master. The exposed-pad QFN package supports compact PCB layouts, although correct thermal pad soldering and adequate copper are required for reliable heat dissipation.
Designers should verify the complete pin assignment and signal timing against the manufacturer datasheet before layout. The parallel interface requires careful routing, and USB differential pairs should be routed as controlled-impedance connections with minimal stubs. For ATA implementations, power-state transitions, bus ownership, and high-impedance behavior must be coordinated with the external master to prevent contention.
This page combines verified distributor identification, package and pricing information, pin-compatible substitution screening, application guidance, and practical implementation cautions. The comparison focuses on verified USB and packaging attributes while marking unreported electrical details for datasheet confirmation rather than estimating them.
直接替换替代料： CY7C68001-56LTXC ——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： CY7C68001-56LTXC （相同外形与封装尺寸） ——差异在于 Product Type.
CY7C68001-56LFXC
✅ 直接替换联系询价
查看数据手册 →CY7C68001-56LTXC 规格参数
| Product Type | USB 2.0 full-speed and high-speed USB interface device |
| USB Specification | USB 2.0 |
| Supported USB Speeds | Full Speed and High Speed |
| External Host Interface | Parallel interface |
| 工作电源电压 | 3.3 V |
| Package Type | 56-pin QFN with exposed pad |
| Package Dimensions | 8 mm x 8 mm |
| 引脚数量 | 56 pins |
| 安装类型 | Surface mount |
| Supported Storage Interface | ATA and ATAPI |
| Compact Flash Support | Yes |
| Maximum ATA or ATAPI Devices | 1 device |
| ATA Interface High-Impedance Mode | Supported |
| Board-Level Manufacturing Test | Supported through the USB interface |
| External Master Compatibility | Standard microprocessors, DSPs, ASICs, and FPGAs |
CY7C68001-56LTXC 8 mm x 8 mm 引脚配置指南
CY7C68001-56LTXC（8 mm x 8 mm 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： CY7C68001-56LTXC.
请参阅 数据手册 以查看完整引脚配置。
典型应用
CY7C68001-56LTXC 适用于 6 应用s: USB-to-ATA Storage Adapter, USB-to-Compact Flash Reader, Board-Level Manufacturing Test Fixture, Embedded USB Peripheral, Shared ATA Bus Storage System, USB-to-Industrial Acquisition Interface.
USB-to-ATA Storage Adapter
The CY7C68001-56LTXC fits a USB-to-ATA adapter because it provides USB 2.0 full-speed and high-speed operation while supporting one ATA or ATAPI device. An external processor, DSP, ASIC, or FPGA can manage the parallel interface and storage commands without implementing the USB protocol directly. The 3.3 V device and 56-pin QFN exposed-pad package support compact adapter designs, provided the ATA power states, bus ownership, and high-impedance transitions are coordinated correctly.
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USB-to-Compact Flash Reader
The CY7C68001-56LTXC is appropriate for a Compact Flash reader because the manufacturer documentation identifies Compact Flash support alongside USB 2.0 full-speed and high-speed operation. The external master can use the device's parallel interface to manage media access and USB transfers. Implementation must account for Compact Flash insertion detection, card power control, signal direction, and the QFN exposed pad's thermal requirements, especially when both USB and memory-card activity create repeated switching load.
推荐
Board-Level Manufacturing Test Fixture
The CY7C68001-56LTXC supports board-level manufacturing testing through its USB interface, allowing a production fixture to communicate with a controller, DSP, ASIC, or FPGA under test. USB 2.0 full-speed and high-speed operation provides a standard connection to test equipment, while the parallel interface keeps the SX2 device as the dedicated protocol-handling element. Fixture designers should isolate the power rails, define safe initialization states, and verify timing margins for the board being tested.
推荐
Embedded USB Peripheral
The CY7C68001-56LTXC can add a dedicated USB 2.0 port to an embedded peripheral built around a microprocessor, DSP, ASIC, or FPGA. The parallel interface allows the existing master to retain control of application behavior while the SX2 device manages USB-facing communication. This is useful when the primary processor does not provide a suitable USB controller or when the product requires a dedicated high-speed interface alongside multiple internal buses.
推荐
Shared ATA Bus Storage System
The CY7C68001-56LTXC is suitable for a shared ATA bus because its interface supports a high-impedance state, allowing another controller such as an IEEE 1394 controller to use the bus. The external master must enforce ownership and prevent simultaneous driving of the ATA signals. USB 2.0 transfer control and ATA protocol handling remain separate functions, while the 3.3 V supply and 56-QFN package simplify integration into a compact storage subsystem.
推荐
USB-to-Industrial Acquisition Interface
The CY7C68001-56LTXC can serve as the USB-facing element in an industrial acquisition system whose acquisition engine is implemented in an FPGA, ASIC, or DSP. The parallel interface provides a direct connection to the processing engine, and USB 2.0 full-speed and high-speed modes connect the assembly to a host computer. Deployment should include robust grounding, controlled-impedance USB routing, board-level testing, and thermal design that fully attaches the 56-QFN exposed pad.
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推荐产品汇总
工程参考数据： CY7C68001-56LTXC ——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 | CY7C68001-56LFXC |
|---|---|---|
| Product Type | EZ-USB SX2 USB interface device | Functionally similar USB interface device |
| Brand | Infineon Technologies | Infineon Technologies |
| Package | 56-QFN EP (8x8) | 56-QFN EP |
| USB Specification | USB 2.0 | USB 2.0 |
| Supported USB Speeds | Full Speed and High Speed | Full Speed and High Speed |
| External Interface | Parallel interface | Parallel interface |
| Operating Supply Voltage | 3.3 V | 3.3 V |
| ATA and ATAPI Support | One ATA or ATAPI device | Functionally consistent according to verified comparison |
关键差异点
- Dedicated USB 2.0 interface rather than a general-purpose USB microcontroller （对比 AT90USB647-MUR)
- High-speed and full-speed USB operation in a dedicated SX2 interface （对比 CY7C68001-56LFXC)
- Integrated storage-bus management （对比 CP2102N-A01-GQFN20R)
- External-master flexibility （对比 STM32F429NIH6TR)
设计说明
Place the CY7C68001-56LTXC close to the external master and USB connector, and route the USB differential pair as a controlled-impedance pair with symmetrical geometry and minimal stubs. The exposed pad must be connected to the PCB ground plane using the manufacturer's recommended via pattern. Confirm the footprint dimensions against the 56-QFN 8 mm by 8 mm datasheet drawing before releasing artwork.
Decouple the 3.3 V supply close to the device with the capacitance and voltage ratings specified by the manufacturer datasheet. Because the parallel interface connects to an external master, define power-up states so that neither the master nor the SX2 device drives an attached bus into an invalid condition. ATA and Compact Flash power rails should be controlled separately and brought into a defined state before the storage bus is enabled.
Do not treat a shared 56-QFN package as proof of unconditional drop-in compatibility. The verified CY7C68001-56LFXC comparison notes functional similarity but also possible parameter and circuit-structure differences. Before substitution, compare the complete pin table, operating limits, timing, USB electrical requirements, exposed-pad connection, and absolute maximum ratings. Update the BOM only after the manufacturer documents confirm the replacement is acceptable.
The exposed pad is the principal thermal path and should be soldered according to the manufacturer land pattern, using compliant vias that connect the pad to the opposite copper layer. Use surrounding ground copper to spread heat while preserving USB return-path continuity. Thermal performance must be evaluated at the maximum expected operating temperature and the worst-case USB, ATA, and logic activity, because the verified data does not provide a numerical junction-temperature limit.
合规信息
The verified data does not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is recorded as not applicable because this is an interface IC rather than an identified automotive-qualified device; no automotive qualification claim was provided.
