描述 Description

Microchip’s USB5744 SmartHub? IC?is a 4 port, SuperSpeed (SS)/Hi-Speed (HS), low power, low pin count configurable and fully compliant with the USB 3.1 Gen 1?specification. The USB5744 also supports Full Speed (FS) and Low Speed (LS) USB signaling, offering complete coverage of all defined USB operating speeds. The new SuperSpeed hubs operate in parallel with the USB 2.0 controller, so 5 Gbps SuperSpeed data transfers are not affected by slower USB 2.0 traffic.

The USB5744 is in a 0.4mm pitch, 56 pin QFN.?It's the smallest 4 port USB 3.1 Gen 1?hub in the industry.?Functionality was reduced to optimize pin count and provide a cost effective solution.?

SmartHub ICs are defined as a USB hub that integrates system levels functions typically associated with a separate MCU or processor. Microchip’s USB5744 Smart Hub support custom configurations of external ports and GPIO pins. MPLAB Connect Configurator, Microchip’s proprietary software utility, can be used to program On-chip One Time Programmable (OTP) ROM which stores required register settings to ensure the desired start up configuration at power on. All?port control signal pins and GPIOs are under firmware control, allowing for maximum operational flexibility. However, for even more simplicity, the USB5744 can be configured through a series of external low-cost resistor bootstraps.?No OTP programming required.

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特性 Features

Highlights
? Four downstream USB3.1 Gen1/2.0 ports
? 56pin (7 x?7 mm) 0.4mm ptich, SQFN lead-free, RoHS compliant package
? Simultaneous data transfer for 2500 mA of High Speed charging
? Enables charging from a mobile platform that is powered-off
? Integrated Hub Feature Controller (HFC) enabling port and GPIO configuration through OTP
? Port Config Straps: Predefined configuration of port settings – Battery Charging, Non-Removable, Disable
? MPLAB Connect Configurator?: Tool enabling enhanced OEM configuration options through either One-Time Programmable (OTP)?(8Kbit) or external SPI ROM
? Manufacturing line programming tool and field update capabilities
? USB Link Power Management (LPM) support
? IETF RFC 4122 compliant 128-bit UUID
? Compatible with Microsoft? Windows? 8/8.1 and other major OS’s
? Industrial grade temperature support (-40°C to +85°C)
Target Applications
? Expansion Hubs
? Docking Stations
? LCD Monitors
? HDTVs

簡介

USB5744屬于集成電路（IC）的控制器。由制造生產(chǎn)的USB5744控制器該系列產(chǎn)品主要用于在采用不同通信協(xié)議和/或信令方法的端點之間提供信息連接。示例包括將 I2C 總線連接到 UART，將 USB 連接到 I2C、SPI、以太網(wǎng)或 UART、以太網(wǎng) MAC 和 PHY 等的器件。此外，還包括用于通過為點對點通信設計的接口建立多路連接的器件，例如 USB 集線器控制器。