This datasheet introduces the features of the SMSC USB20H04 4-Port USB2.0 Hub Controller, which is compliant with the USB2.0 specification, supports four downstream ports, and has four transaction translators to ensure maximum USB throughput. The controller supports bus-powered Hi-Speed hub design and is compatible with On-The-Go (OTG) USB devices.
The document describes the SMSC USB20H04, a 4-Port USB2.0 Hub Controller designed to enable bus-powered Hi-Speed hub designs. It features four transaction translators for maximum throughput and supports On-The-Go (OTG) devices with an integrated Session Request Protocol (SRP). The controller includes hardware features such as automatic power mode detection, internal short circuit protection, and on-chip oscillator support using a 24MHz crystal.
The datasheet details various configuration options available to OEMs, including the ability to select bus-powered or self-powered modes via pins or serial interface. It covers functional block diagrams, pin descriptions, electrical characteristics, implementation notes for EEPROM programming, default configuration values, and application diagrams.
The device supports four downstream ports.
A 24MHz crystal is used for the on-chip oscillator.
The product is available in a 64-pin TQFP package with dimensions of 10x10x1.4.