Pin Function Grouping

Done — I grouped all 25 RTL8152B-VB-CG pins by primary function and verified each physical pin number is assigned only once.
Updated groups include Power rails, Ground/EP, Ethernet MDI pairs, USB differential pair, LED/SPI/GPIO/control, Clock/Crystal, and Reference/Bias. I also normalized pin types/sections where possible for cleaner symbol metadata.
  • Make the functional group more general.
  • Add a Section property to all pins, and apply the same value used in the Pin Group property to each pin's Section property.
I’ll simplify the RTL8152B pin groups to broader functional categories, then mirror each pin’s Pin Group value into its Section property.
Done — I generalized the functional groups and set every pin’s Section property to match its Pin Group exactly.
The groups are now: Power, Ground, Ethernet, USB, GPIO, Control, SPI, Clock, Reference. Verified all 25 pins have matching Pin Group/Section values and no pin was duplicated across groups.
Review, document and export
Run ERC/DRC
Document pin groups
Check datasheet mapping
Export BOM report

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    stp

    RTL8152B-VB-CG

    RTL8152B-VB-CG.stp3D Model
    RTL8152B-VB-CG

    RTL8152B-VB-CG

    RTL8152B-VB-CG Symbol.svgDefault
    kicad_mod

    RTL8152B-VB-CG

    QFN50P400X400X90-25N.kicad_modFootprint

    RTL8152B-VB-CG

    RTL8152B-VB-CG thumbnail
    The RTL8152B-VB-CG specification defines the engineering requirements for a USB-to-Ethernet controller integrated circuit designed to provide high-speed network connectivity for embedded systems and computer peripherals. This specification establishes the functional, electrical, mechanical, environmental, and quality requirements necessary to ensure reliable data communication, efficient protocol handling, and long-term operational stability.
    The device is intended for use in USB Ethernet adapters, embedded networking equipment, industrial control systems, docking stations, communication gateways, and other applications requiring seamless conversion between USB and Ethernet interfaces. It supports stable network connectivity while providing efficient data transfer, low power consumption, and compatibility with standard networking protocols.
    Engineering Requirements
    The controller shall be manufactured using qualified semiconductor fabrication processes and high-quality materials to ensure consistent electrical performance, robust communication capability, and long service life. The device shall maintain reliable operation under specified voltage, temperature, and environmental conditions without degradation of functionality.
    Electrical characteristics shall provide stable USB and Ethernet interface operation, reliable signal integrity, and efficient data transfer under continuous network traffic and varying system loads. The controller shall maintain dependable communication performance during power transitions, initialization, and sustained operation.
    The integrated communication architecture shall support reliable protocol processing, packet transmission, and network interface management while minimizing latency and maximizing data throughput. The device shall maintain compatibility with standard Ethernet and USB communication requirements within its intended operating environment.
    Mechanical construction shall be suitable for automated surface-mount assembly and compatible with standard solder reflow manufacturing processes. The package shall withstand thermal cycling, vibration, mechanical handling, and environmental exposure without degradation of electrical or mechanical integrity. Workmanship shall be free from defects including contamination, package cracking, bond failures, or structural inconsistencies.
    Inspection, validation, and testing shall be performed using calibrated equipment and controlled quality procedures to verify compliance with applicable engineering and manufacturing requirements. Any deviation from this specification shall require formal engineering evaluation, documented technical justification, and approval through the established engineering change control process.
    Documentation
    Supporting documentation shall include engineering drawings, electrical specifications, communication interface documentation, qualification reports, inspection records, reliability data, material declarations, and revision-controlled manufacturing documentation. All documentation shall be maintained under formal configuration management and quality assurance systems to ensure complete product traceability.
    Revision Control
    Any modification to this specification shall be managed through the formal engineering change management process. All revisions shall undergo technical review, validation, and approval before implementation to ensure continued compliance with design intent and applicable engineering standards.

    Properties

    RTL8152B-VB-CG

    Realtek

    Ethernet

    IC

    24-QFN

    Rohs

    parametric-v1

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