CY7C68003-20FNXI - Full-Speed USB 2.0 | Infineon
料号： CY7C68003-20FNXI ✓ 量产中CY7C68003-20FNXI 概述
A USB transceiver is an interface IC that converts digital data from a host or device controller into USB differential signaling, and converts incoming differential signals into logic-level data. The USB transceiver belongs to the interface IC hierarchy, alongside USB controllers, serial transceivers, and line drivers. Its full-speed designation corresponds to USB 2.0 low-speed and full-speed operation rather than USB 2.0 high-speed operation.
The verified product information identifies a one-driver, one-receiver configuration, a full-speed USB 2.0 interface, and a 1.8 V to 3.3 V supply range. These characteristics suit space-constrained portable equipment, industrial controllers, and USB peripherals that use low-voltage digital logic. The very small WLCSP footprint reduces board area but requires careful assembly and routing practices.
The part's compact 20-WLCSP construction is suitable for high-density designs where connector placement, EMI control, and trace length are important. Because this is a physical-layer transceiver, system behavior also depends on the connected USB controller, pull-up or pull-down implementation, crystal or clock source, termination network, connector, and firmware configuration. The transceiver alone does not negotiate USB speed or implement the complete protocol stack.
Typical applications include USB-to-serial adapters, embedded USB peripherals, portable instruments, industrial data-acquisition equipment, and compact control systems. In each case, the 1.8 V to 3.3 V operating range aligns with modern low-voltage processors, while the 2.14 mm by 1.76 mm footprint supports compact assemblies.
A critical design consideration is PCB layout. USB differential traces should be routed as a controlled-impedance pair over a continuous ground plane, with minimized stubs and careful separation from switching nodes. The manufacturer's datasheet should be consulted for the exact ball assignments, exposed-pad treatment, recommended capacitors, and USB routing dimensions.
This page combines verified supplier information, package and interface specifications, replacement-family references, pricing context, and practical USB PCB-design guidance to support faster component selection and design review.
直接替换替代料： CY7C68003-20FNXI ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
CY7C68003-20FNXC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY7C68003-20FNXA
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY7C68003A-20FNXI
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY7C68003A-20FNXC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY7C68003-20FNXI-T
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CY7C68003-20FNXI 规格参数
| Product Type | USB 2.0 Transceiver |
| USB Interface | Full-Speed USB 2.0 |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| Supply Voltage Range | 1.8 V to 3.3 V |
| 封装 | 20-WLCSP (2.14 mm x 1.76 mm) |
| Package Pin Count | 20 |
| Package Type | Wafer Level Chip Scale Package |
| 安装类型 | Surface Mount |
CY7C68003-20FNXI wafer level chip scale package 引脚配置指南
CY7C68003-20FNXI（wafer level chip scale package 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： CY7C68003-20FNXI.
请参阅 数据手册 以查看完整引脚配置。
典型应用
CY7C68003-20FNXI 适用于 6 应用s: Compact USB-to-Serial Adapter, Embedded USB Data-Acquisition Device, Portable Medical-Control Interface, Industrial USB Service Port, USB Configuration and Debug Interface, Low-Voltage USB Test and Measurement Module.
Compact USB-to-Serial Adapter
The CY7C68003-20FNXI fits a space-constrained USB-to-serial adapter because it combines a full-speed USB 2.0 transceiver, one driver, one receiver, and a 1.8 V to 3.3 V supply range in a 20-WLCSP package measuring 2.14 mm by 1.76 mm. The transceiver can sit near a USB connector and connect its differential data path to a small controller. This shortens sensitive USB routing and leaves additional board area for the serial interface, regulator, and protection components. Its verified low-voltage operation also aligns with controllers operating from 1.8 V or 3.3 V. Before layout, confirm the exact ball assignments, capacitor recommendations, and USB routing dimensions in the manufacturer datasheet.
推荐
Embedded USB Data-Acquisition Device
The CY7C68003-20FNXI is appropriate for embedded USB data-acquisition equipment requiring a full-speed physical-layer connection in limited board space. Its one-driver, one-receiver USB interface supports a direct connection between the acquisition controller and USB connector, while the 1.8 V to 3.3 V operating range accommodates common embedded logic levels. The 2.14 mm by 1.76 mm WLCSP footprint leaves more PCB area for sensors, amplifiers, isolation, and data conversion. Designers should place the transceiver near the connector, route the differential pair over a continuous ground plane, and confirm all USB timing and layout requirements against the current manufacturer documentation.
推荐
Portable Medical-Control Interface
The CY7C68003-20FNXI can support a compact control port in portable medical equipment when the USB interface is used for configuration, logging, or service access. The full-speed USB 2.0 transceiver and 1.8 V to 3.3 V supply range are compatible with low-voltage embedded processors, and the compact 20-WLCSP conserves area in handheld housings. The transceiver's small footprint does not replace medical-safety design controls: isolation, protection, creepage, and alarm behavior must be handled by the complete system. Engineers should review the current datasheet for exact pin functions, decoupling, USB impedance requirements, and any device-specific limitations before schematic approval.
推荐
Industrial USB Service Port
The CY7C68003-20FNXI is suitable for an industrial USB service port where a controller needs a compact full-speed USB 2.0 physical interface. The 1.8 V to 3.3 V range supports common industrial logic levels, and the 2.14 mm by 1.76 mm package simplifies placement near connectors on crowded control boards. A continuous ground plane, controlled-impedance differential routing, and protection appropriate to the installation are essential in industrial environments. Although the verified sources identify the transceiver's interface and supply range, they do not provide ESD ratings or environmental limits. Confirm those specifications, along with temperature qualification and lifecycle status, in the manufacturer documentation.
推荐
USB Configuration and Debug Interface
The CY7C68003-20FNXI can provide a dedicated USB connection for firmware configuration, diagnostics, or debug access in a compact embedded controller. Its full-speed USB 2.0 one-transmitter, one-receiver interface is suitable for basic service and programming traffic, while its 1.8 V to 3.3 V operation aligns with the target controller's supply domain. Placing the device near a USB connector can reduce high-frequency trace exposure, but enclosure grounding and connector ESD protection must be considered. Because the supplied verification does not include detailed timing, temperature, or pinout data, the design team should verify the current manufacturer datasheet and use its recommended reference layout.
推荐
Low-Voltage USB Test and Measurement Module
The CY7C68003-20FNXI is useful in a compact USB-connected test or measurement module that transfers commands and results through a full-speed USB 2.0 interface. The verified one-driver, one-receiver configuration is appropriate for a dedicated USB physical layer, while the 1.8 V to 3.3 V supply range allows use with low-voltage control logic. Its small WLCSP footprint preserves space for analog front ends, protection, and signal conditioning. Reliable implementation depends on a quiet ground reference, controlled USB trace geometry, local decoupling, and correct connector protection. Confirm the exact operating limits and pin map in the current Infineon datasheet before releasing the PCB.
推荐
推荐产品汇总
工程参考数据： CY7C68003-20FNXI ——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 | CY7C68003-20FNXC | CY7C68003-20FNXA | CY7C68003A-20FNXI | CY7C68003A-20FNXC |
|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | 20-WLCSP (2.14 x 1.76 mm) | 20-WLCSP (2.14 x 1.76 mm) | 20-WLCSP (2.14 x 1.76 mm) | 20-WLCSP (2.14 x 1.76 mm) | 20-WLCSP (2.14 x 1.76 mm) |
| Product Type | USB 2.0 Transceiver | USB 2.0 Transceiver | USB 2.0 Transceiver | USB 2.0 Transceiver | USB 2.0 Transceiver |
| USB Interface | 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 |
| Number of Drivers | 1 | 1 | 1 | 1 | 1 |
| Number of Receivers | 1 | 1 | 1 | 1 | 1 |
| Device Revision | Base CY7C68003 ordering | Base CY7C68003 ordering | Base CY7C68003 ordering | CY7C68003A revision | CY7C68003A revision |
关键差异点
- Compact 20-WLCSP implementation （对比 CY7C68003A-20FNXC)
- Single full-speed USB physical channel （对比 CY7C68003-20FNXA)
- Low-voltage operation for compact systems （对比 CY7C68003-20FNXC)
- Distributor availability （对比 CY7C68003A-20FNXI)
设计说明
Route the USB data pair as a short, continuous differential pair over an unbroken ground plane. Avoid branch stubs, test pads, and unnecessary vias because they can disturb impedance and add reflections. Keep the transceiver close to the USB connector, maintain the pair spacing recommended by the manufacturer and applicable USB layout guidance, and provide a nearby ground return. The supplied sources do not contain the complete pinout or reference layout, so use the current manufacturer drawing for ball locations, exposed-pad treatment, and exact dimensional requirements.
The verified operating supply range is 1.8 V to 3.3 V. Provide local bypass capacitance at the device's supply and ground pins, with capacitor type and values selected from the current manufacturer datasheet and reference schematic. Account for the controller, USB transceiver, pull resistors, and any adjacent regulator current when sizing the power rail. Avoid routing the USB pair through switching-regulator areas and verify that the ground reference used by the transceiver remains low-noise.
Do not treat any CY7C68003 ordering suffix as automatically interchangeable without checking the full ordering table. Revision A can differ from the base device, while the final suffix can encode temperature, package, or distribution conditions. Review the USB speed, supply range, operating temperature, exposed-pad requirements, USB data pins, pull configuration, and lifecycle status for the exact replacement. The verified search did not provide those comparative values, so the listed alternatives require datasheet confirmation before a production substitution.
USB differential signaling should be referenced to a continuous ground plane and kept away from antennas, switching inductors, high-current return paths, and clocks with significant harmonic content. Use a common ground reference for the transceiver, controller, and connector path, and evaluate chassis or enclosure grounding separately when the product uses a metal enclosure. ESD and surge protection requirements are not stated in the verified sources, so select protection according to the installation threat and confirm that it does not degrade USB signal integrity.
合规信息
The supplied verified sources do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for CY7C68003-20FNXI.
