CY7C68320C-100AXC USB 2.0 ATA Bridge | Infineon Technologies
料号： CY7C68320C-100AXC ✓ 量产中CY7C68320C-100AXC 概述
A USB-to-ATA bridge is an interface controller that translates USB transactions into ATA or ATAPI commands for storage peripherals. It belongs to the USB interface controller family, where USB host connectivity is paired with an embedded storage interface. This bridging function allows a USB port to operate with compatible disk, tape, or removable-media equipment while preserving the established ATA command set.
The CY7C68320C-100AXC provides a USB 2.0 high-speed peripheral interface, ATA interfacing, a 3.3 V supply requirement, and a 100-pin surface-mount package. Its commercial operating range covers 0 °C to 70 °C, making it appropriate for equipment intended to operate in controlled indoor or industrial-enclosure environments. The 14 mm by 20 mm TQFP format provides enough external pins for host, storage-side, clock, control, and power connections.
The controller is used as the protocol-conversion element between a USB system and an ATA-compatible peripheral. Signal integrity at the USB and ATA edges depends on correct impedance-controlled routing, continuous return paths, and placement of the required decoupling capacitors. Its 100-pin package leaves sufficient perimeter space for fanout into these two interfaces, but the relatively large footprint must be considered when compact equipment designs are compared with smaller controller packages.
Typical implementations include USB storage adapters, removable cartridge readers, embedded disk systems, legacy-portable-computer peripherals, and industrial data-acquisition equipment that retains an ATA interface. In these systems, the CY7C68320C-100AXC handles USB traffic and converts it into the appropriate ATA or ATAPI command sequence while the attached storage device supplies the physical data storage.
PCB design should prioritize short USB differential traces, controlled impedance, solid ground-plane continuity, and decoupling close to the supply pins. Because this controller bridges two high-speed digital domains, connector and trace geometry should avoid unnecessary stubs. Prototype layouts should also follow the pin-description table and reference circuitry in the manufacturer datasheet rather than inferring connections from the package outline.
This page consolidates the controller identity, interface details, package information, replacement guidance, and application guidance into one engineering reference. It also highlights the trade-off between protocol versatility and package size, helping designers determine whether the 100-lead TQFP implementation meets the mechanical, environmental, and connectivity requirements of a USB storage system.
直接替换替代料： CY7C68320C-100AXC ——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： CY7C68320C-100AXC （相同外形与封装尺寸） ——差异在于 Device Type, Operating Temperature, Package Type.
CY7C68320C-100AXA
✅ 直接替换联系询价
查看数据手册 →CY7C68320A-100AXC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY7C68320A-100AXA
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY7C64713-100AXC
✅ 直接替换📋 参考替代料（不在目录中）
CY7C68320C-100AXC 规格参数
| Device Type | USB 2.0 to ATA/ATAPI Bridge Controller |
| USB Interface | USB 2.0 high-speed peripheral |
| Storage Interface | ATA/ATAPI |
| 电源电压 | 3.3 V |
| 工作温度 | 0 °C to 70 °C |
| Package Type | 100-lead TQFP |
| Package Dimensions | 14 mm x 20 mm |
| 引脚数 | 100 |
| 安装类型 | Surface mount |
| Terminal Form | Gull wing |
| Package Shape | Rectangular |
| Temperature Grade | Commercial |
| Device Category | Line and bus controller |
| Manufacturer | Infineon Technologies |
CY7C68320C-100AXC rectangular 引脚配置指南
CY7C68320C-100AXC（rectangular 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： CY7C68320C-100AXC.
请参阅 数据手册 以查看完整引脚配置。
典型应用
CY7C68320C-100AXC 适用于 6 应用s: USB Storage Adapter, Removable Media Reader, Embedded Disk Controller, Industrial Data Acquisition, Legacy Computer Peripherals, Portable Instrumentation.
USB Storage Adapter
The CY7C68320C-100AXC fits a USB storage adapter that connects an ATA-compatible hard disk or removable-media device to a USB 2.0 host. Its USB high-speed peripheral interface handles host communication while the ATA/ATAPI side translates commands to the storage device. The controller's 3.3 V supply and 0 °C to 70 °C commercial range suit indoor adapters, provided the board provides correct storage power, signal conditioning, and connector support.
推荐
Removable Media Reader
A removable-media reader can use the CY7C68320C-100AXC to translate USB host transactions into ATA commands for compatible cartridge hardware. The USB 2.0 high-speed interface supports efficient data transfer, while the 100-lead TQFP provides separate external connections for USB, ATA, control, power, and ground. Designers should preserve controlled-impedance USB routing and verify the reader's hot-plug, power-cycle, and media-detection requirements.
推荐
Embedded Disk Controller
The CY7C68320C-100AXC is appropriate for embedded equipment that retains an ATA storage interface but exposes data through USB. Placing the bridge between the system USB connector and an internal disk separates the storage command interface from the external host protocol. Its commercial temperature range supports controlled equipment rooms and industrial enclosures, while the large 100-lead package requires adequate PCB area and careful fanout between the two interfaces.
推荐
Industrial Data Acquisition
The CY7C68320C-100AXC can bridge USB connectivity to an ATA-compatible acquisition or logging device in a controlled industrial installation. The USB high-speed peripheral interface enables a compact host connection, and the ATA side retains compatibility with established storage command sets. Because the specified temperature range is 0 °C to 70 °C, the assembly should remain within that range or use a suitably qualified controller variant for harsher environments.
推荐
Legacy Computer Peripherals
Legacy computer peripherals requiring a USB-to-ATA path can use the CY7C68320C-100AXC to preserve an established storage interface while connecting to a modern USB host. The bridge reduces the need to reproduce the complete ATA protocol in external controller hardware. Product developers should validate operating-system enumeration, device descriptors, power requirements, and cable length because these details determine whether the full USB 2.0 high-speed interface remains usable in the final enclosure.
推荐
Portable Instrumentation
Portable test and measurement instruments can use the CY7C68320C-100AXC to export ATA-based recorded data through USB. The 3.3 V operating requirement integrates with compact portable electronics, and the commercial temperature range covers typical indoor use. A practical design should place the controller close to the USB connector, keep USB differential traces short, provide uninterrupted ground references, and isolate storage-power switching to reduce conducted and radiated noise.
推荐
推荐产品汇总
工程参考数据： CY7C68320C-100AXC ——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 | CY7C68320C-100AXA | CY7C68320A-100AXC | CY7C68320A-100AXA | CY7C64713-100AXC |
|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | 100-lead TQFP (14 mm x 20 mm) | 100-lead TQFP (14 mm x 20 mm) | 100-lead TQFP (14 mm x 20 mm) | 100-lead TQFP (14 mm x 20 mm) | 100-lead TQFP |
| Pin Count | 100 pins | 100 pins | 100 pins | 100 pins | 100 pins |
| Mounting Type | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount |
关键差异点
- Direct USB 2.0 high-speed to ATA/ATAPI integration （对比 CY7C64713-100AXC)
- Commercial 0 °C to 70 °C operating specification （对比 CY7C68320C-100AXA)
- Documented 14 mm by 20 mm package outline （对比 CY7C68320A-100AXC)
设计说明
Route the USB differential pair as a short, impedance-controlled pair with a continuous ground reference. Keep connector, protection components, and the controller in the same signal path, and avoid adding test pads that create unterminated stubs. The USB and ATA edges should be separated where practical so switching and return-current activity on one interface does not disturb the other.
Use the manufacturer's reference schematic and pin-description table to place input, output, power, and decoupling connections. Place bypass capacitors close to the corresponding device pins and provide low-impedance connections to the ground plane. The 100-lead TQFP footprint is larger than a typical compact bridge controller, so confirm land-pattern dimensions against the 14 mm by 20 mm package drawing before PCB release.
Separate the controller's 3.3 V supply path from the power demands of an attached storage device wherever the board architecture permits. Use controlled switching or regulation for the storage load and keep its return current away from sensitive USB and ATA reference paths. Check the controller's absolute maximum and recommended supply limits in the manufacturer datasheet rather than assuming the nominal 3.3 V condition permits rail tolerance.
Do not approve a substitute solely because it has 100 leads. Compare pin names, exposed functions, clock requirements, configuration pins, ATA-side signals, USB device behavior, and ordering-code temperature limits. CY7C68320C-100AXA and CY7C68320A-100AXC are family candidates, while CY7C64713-100AXC is a lower-confidence functional match; each requires schematic and pin-level review.
合规信息
The component is a commercial-temperature USB interface controller rather than an automotive-qualified device. Specific RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations are not stated and remain unknown.
