MCHPUSB2512B 2-Port USB 2.0 Hi-Speed Hub Controller
Overview
The Microchip USB2512B-I/M2 is a USB 2.0 high-speed hub controller for adding downstream USB ports to an embedded or host design. It provides a compact way to fan out one upstream USB connection into two downstream ports while handling the hub protocol in hardware. This makes it useful anywhere a board needs multiple USB devices connected through a single host port.
Why Choose This Part
The USB2512B integrates the hub function in a dedicated controller, which reduces firmware complexity compared with implementing USB fan-out in a general-purpose MCU. It is a practical choice when a design needs stable USB 2.0 high-speed connectivity with minimal board-level integration effort. The small package option also helps in space-constrained embedded products.
Applications
Getting Started
Start by reviewing the Microchip datasheet and reference schematics for required support components, power sequencing, and port configuration options. For design validation, use a known-good upstream host and common USB peripherals to verify enumeration, reset behavior, and downstream port power control. This part is usually designed into a custom board rather than evaluated with a development kit, so schematic implementation and layout guidance matter more than an IDE or toolchain.
