CY7C68003-24LQXI - USB 2.0 ATA Bridge | Infineon | 24-QFN
部品番号: CY7C68003-24LQXI ✗ 生産終了CY7C68003-24LQXI 概要
An EZ-USB AT2LP bridge is a specialized interface IC that translates between the USB 2.0 bus and an ATA/ATAPI storage bus. Within the product hierarchy, it belongs to the USB transceiver family, then to interface ICs, and finally to the broader semiconductor category. This bridge is intended to simplify USB-to-ATA product designs by combining USB signaling and ATA-side control in one compact package.
Key verified features include full-speed USB 2.0 operation, support for CompactFlash and one ATA/ATAPI device, and board-level manufacturing test through the USB interface. The ATA interface can also be placed in a high-impedance state, allowing the ATA bus to be shared with another controller such as an IEEE-1394 controller. Its 24-QFN package supports compact PCB layouts while the exposed pad provides a thermal connection to the board.
The CY7C68003 family separates USB connectivity from the storage-facing ATA interface and is intended for board-level embedded storage designs. Board-level manufacturing test is especially useful because production fixtures can exercise the attached storage path over USB instead of requiring a separate ATA test interface. The shared-bus capability also provides a route to designs in which USB and another transport must coexist.
Typical applications include USB CompactFlash readers, USB-to-ATA storage adapters, embedded industrial data loggers, portable diagnostic equipment, board-level storage subsystems, and legacy ATA peripheral modernization. These systems benefit from a single USB-facing interface while retaining compatibility with CompactFlash or ATA/ATAPI storage devices.
Designers should account for the 1.8 V to 3.3 V operating range, the -40°C to +85°C industrial temperature rating, exposed-pad layout, USB routing, and ATA signal-integrity requirements. The datasheet-supported high-impedance ATA mode must be coordinated carefully whenever multiple potential bus controllers share the ATA side.
This page consolidates verified distributor information, same-family replacement options, package details, and application-specific engineering guidance. It distinguishes genuine same-footprint alternatives from cross-package parts that would require PCB redesign, helping engineers make a replacement decision based on fit, function, sourcing, and thermal requirements rather than part-number similarity alone.
ドロップイン代替品: CY7C68003-24LQXI — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
CY7C68003-24LQ
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY7C68003-24LQX
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY7C68003-24LQXIT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
CY7C68003-24LQXC
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY7C68003A-24LQXI
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CY7C68003-24LQXI 仕様
| Product Type | USB 2.0 full-speed transceiver and EZ-USB AT2LP bridge |
| Supported USB Protocol | USB 2.0 full-speed |
| ATA Device Support | 1 ATA/ATAPI device |
| CompactFlash Support | Yes |
| Supply Voltage Range | 1.8 V to 3.3 V |
| 動作温度範囲 | -40°C to +85°C |
| パッケージ | 24-QFN (UFQFN exposed pad), 4 mm x 4 mm |
| 実装タイプ | Surface mount |
| Manufacturer Packaging | Tray |
| Transceiver Classification | 1/1 full transceiver |
| Manufacturing Test Interface | USB interface, board-level test |
| ATA Bus High-Impedance Mode | Supported |
| Shared Bus Example | IEEE-1394 controller or another compatible controller |
CY7C68003-24LQXI 24-qfn (ufqfn exposed pad), 4 mm x 4 mm ピン配置ガイド
CY7C68003-24LQXI (24-qfn (ufqfn exposed pad), 4 mm x 4 mm パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: CY7C68003-24LQXI.
詳細は データシート をご参照ください。
主な用途
CY7C68003-24LQXI の用途: 6 件s: USB CompactFlash Data Acquisition, USB-to-ATA Embedded Storage Adapter, Industrial USB Service Console, Portable Medical Data Recorder, Legacy ATA Peripheral Modernization, Network-Attached Storage Controller.
USB CompactFlash Data Acquisition
The CY7C68003-24LQXI fits a CompactFlash acquisition unit because the verified feature set explicitly supports CompactFlash alongside full-speed USB 2.0 operation. The bridge provides a USB-facing connection to one ATA/ATAPI-class storage device, allowing captured data to be transferred through a standard USB port instead of a proprietary removable-media interface. Its 1.8 V to 3.3 V operating range supports compact embedded power systems, while the -40°C to +85°C rating covers demanding industrial environments. The 24-QFN exposed-pad package also helps limit board area. A practical implementation should use controlled-impedance USB routing, verify the CF connector and power requirements, and confirm that the complete storage path supports the required transfer rate.
おすすめ
USB-to-ATA Embedded Storage Adapter
The CY7C68003-24LQXI is appropriate for an embedded USB-to-ATA adapter because it combines a full-speed USB 2.0 interface with support for one ATA/ATAPI device in one 24-QFN package. This can reduce the number of discrete interface components required by a legacy storage subsystem while exposing the device through a modern USB connection. The verified 1.8 V to 3.3 V supply range constrains the adapter's power architecture, and the exposed thermal pad must be connected according to the manufacturer layout guidance. Designers should budget signal and connector capacitance, validate ATA timing at the intended host, and confirm whether the target system requires the high-impedance ATA sharing mode.
おすすめ
Industrial USB Service Console
A service console can use the CY7C68003-24LQXI to connect one ATA/ATAPI device to a USB host while retaining a compact board implementation. The verified -40°C to +85°C operating range is valuable in factory, field-service, and diagnostic equipment where the enclosure may experience substantial temperature variation. The full-speed USB 2.0 interface is suitable for management and configuration workloads, while board-level manufacturing test through USB can simplify production fixtures. Because ATA/ATAPI behavior, USB enumeration, and file-system support are system-level concerns, the implementation should include tested device drivers, controlled boot or enumeration timing, and validation of connector insertion and removal procedures.
おすすめ
Portable Medical Data Recorder
The CY7C68003-24LQXI can support a portable medical data recorder that stores logs on one ATA/ATAPI or CompactFlash device and exposes the data through USB. Its verified -40°C to +85°C range provides useful industrial design margin, and the compact 24-QFN package supports space-constrained portable equipment. The USB interface can also provide a manufacturing-test path during final board validation. Medical use nevertheless requires a system-level risk assessment: validated storage media, data-integrity checks, electrical isolation where required, battery-state coordination, and cybersecurity controls must be addressed outside the bridge itself. These controls are essential because the IC provides connectivity rather than regulated clinical-data assurance.
おすすめ
Legacy ATA Peripheral Modernization
The CY7C68003-24LQXI is useful when modernizing a legacy ATA/ATAPI peripheral that must present a removable or host-accessible storage interface through USB. The verified support for one ATA device, CompactFlash, and full-speed USB 2.0 provides a defined bridge function, while the 1.8 V to 3.3 V range helps align the part with contemporary embedded rails. A successful redesign must reconcile legacy power states, connectors, cable capacitance, and ATA signal timing with the USB host. The ATA high-impedance capability should be used only when the bus-sharing sequence guarantees that another controller cannot contend with the CY7C68003 during transitions.
おすすめ
Network-Attached Storage Controller
The CY7C68003-24LQXI can contribute to a compact network-attached storage design by bridging a local ATA/ATAPI device to a USB 2.0 full-speed host interface. In this architecture, a separate network controller or microcontroller would manage file services, while the CY7C68003 handles the storage-facing USB path. The verified 24-QFN footprint and exposed pad support dense PCB construction, and the -40°C to +85°C range suits industrial enclosures. Full-speed operation must be evaluated against the required throughput, and designers should add appropriate cache or buffering where workload demand exceeds the USB path. Thermal and EMC testing of the complete assembly remains necessary because connector and enclosure behavior can materially affect the interface margin.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: CY7C68003-24LQXI — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | CY7C68003-24LQ | CY7C68003-24LQX | CY7C68003-24LQXIT | CY7C68003-24LQXC | CY7C68003A-24LQXI |
|---|---|---|---|---|---|---|
| Package | 24-QFN (4 x 4 mm) | 24-QFN (4 x 4 mm) | 24-QFN (4 x 4 mm) | 24-QFN (4 x 4 mm) | 24-QFN (4 x 4 mm) | 24-QFN (4 x 4 mm) |
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Supported Protocol | USB 2.0 full-speed | USB 2.0 full-speed | USB 2.0 full-speed | USB 2.0 full-speed | USB 2.0 full-speed | USB 2.0 full-speed |
| Function | EZ-USB AT2LP USB-to-ATA bridge | EZ-USB AT2LP USB-to-ATA bridge | EZ-USB AT2LP USB-to-ATA bridge | EZ-USB AT2LP USB-to-ATA bridge | EZ-USB AT2LP USB-to-ATA bridge | EZ-USB AT2LP USB-to-ATA bridge |
| ATA Device Support | 1 ATA/ATAPI device | 1 ATA/ATAPI device | 1 ATA/ATAPI device | 1 ATA/ATAPI device | 1 ATA/ATAPI device | 1 ATA/ATAPI device |
| Supply Voltage Range | 1.8 V to 3.3 V | 1.8 V to 3.3 V | 1.8 V to 3.3 V | 1.8 V to 3.3 V | 1.8 V to 3.3 V | 1.8 V to 3.3 V |
主な差別化要因
- Purpose-built USB-to-ATA bridge （vs CY7C63613C-SXCT)
- Verified CompactFlash and ATA support （vs CY7C63613C-SXC)
- Manufacturing-test access over USB （vs CY7C63101C-QXC)
- Shared-ATA-bus option （vs CY7C68003-24LQXIT)
設計ノート
Follow the manufacturer exposed-pad land pattern and thermal-via recommendations for the 24-QFN package. Place the USB and ATA interface circuitry close to their respective pins, keep the USB pair impedance controlled, and avoid routing noisy power or unrelated digital signals beneath the exposed pad. Confirm the package drawing and pin table in the manufacturer datasheet before releasing the PCB because the supplied records do not provide the complete numbered pin assignment.
Design the 1.8 V to 3.3 V supply network so every rail remains within the verified operating range during startup, USB attachment, and ATA power-state transitions. Decouple each supply domain close to its pins using the capacitance and ESR requirements stated in the manufacturer datasheet. The 0.00 tier prices are unavailable-price placeholders rather than actual quotations, so obtain current pricing before committing to the sourcing plan.
Do not assume that every similarly named CY7C USB controller is a drop-in substitute. The supplied comparison records explicitly state that the CY7C63613C-SXCT uses a 16-pin SOIC package and is not PCB-compatible. Before replacing the CY7C68003-24LQXI, verify the 24-QFN footprint, complete pinout, USB and ATA function, temperature grade, exposed-pad requirement, and device marking with the manufacturer datasheet.
Plan USB routing as a controlled-impedance differential pair and keep connector, protection-device, and branch geometry aligned with the host interface requirements. The ATA side also needs short, cleanly referenced routing with appropriate return paths. When using the ATA high-impedance feature, define startup, ownership, and shutdown sequencing in firmware so the CY7C68003 and any competing controller cannot drive the shared bus simultaneously.
コンプライアンス情報
The supplied product records do not contain explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive-qualification statements. AEC-Q100 is treated as not applicable because the verified -40°C to +85°C industrial-temperature designation is not an automotive qualification claim.
