VSC8488YJU-15

VSC8488YJU-15 is a part number in Vitesse’s VSC8488 family (now Microchip) of multi-port Ethernet devices. It is a high-density 8-port Ethernet switch/PHY intended for embedded and edge networking equipment. The device provides eight 10/100/1000BASE-T PHY channels with an integrated switch fabric and management interface, enabling straightforward creation of small switches or multi-port bridges. It supports standard Ethernet features such as auto-negotiation, MDIO/MMD management, VLANs and QoS (as implemented in the device), and selective power-down modes. The “YJU-15” suffix indicates a specific package and temperature/ordering option; exact electrical characteristics (supply voltage, timing, heat, pinout) depend on the datasheet revision and package variant. Use case examples: industrial controllers, routers, network edge devices, small data-center leafs. For authoritative specs, refer to the VSC8488 datasheet, product documentation, and contact Microchip/Vitesse for the correct ordering code and availability.

Here are typical features of the VSC8488YJU-15 (Vitesse/Microchip family). For exact specs, please check the official datasheet.
- Eight independent 10/100/1000BASE-T PHYs
- Auto-Negotiation and Auto-MDI/MDIX on each port
- Full or half duplex operation at 10/100/1000 Mbps per port
- IEEE 802.3az Energy Efficient Ethernet
- Pause/Flow control support
- Per-port LED indicators with integrated LED drivers
- Flexible MAC interface to switch core (GMII/RGMII/SGMII typical, depending on implementation)
- Low-power/low-power-down modes and optional industrial temperature variants
Note: exact features may vary by package/revision (YJU-15). Refer to the official datasheet for precise electricals, timing, and supported interfaces.

Pin count: 208-pin BGA (YJU-15 package variant).
Function: VSC8488YJU-15 is an eight-port Gigabit Ethernet PHY (8× 10/100/1000BASE-T) with MAC/PHY interfaces and MDIO management, intended for Ethernet switch/applications.

- Manufacturer: Vitesse Semiconductor Corporation (Vitesse).
- What kind of company: A semiconductor company that designs high-speed networking ICs (e.g., Ethernet PHYs, SerDes, switches) for telecom and data-communications equipment; originally a fabless semiconductor company.

Primary applications for VSC8488YJU-15 include:
- Enterprise and data-center edge/small-form-factor switches
- Embedded NICs, gateways, and service-provider CPE
- Industrial Ethernet equipment and automation controllers
- Telecom access gear and edge networking devices
- Media converters and compact campus/retail networking gear
- IoT/smart city networking deployments needing multiple gigabit ports
Note: It’s an 8-port Ethernet PHY/switch device, suitable for high-density, multi-port networking in these environments.

BGA (Ball Grid Array) package.