SMSC USB2514I

USB2514I Allgemeine Beschreibung

General DescriptionThe SMSC 4-Port Hub is low power, OEM configurable, MTT (multi transaction translator) hub controller IC with 4 downstream ports for embedded USB solutions. The 4-port hub is fully compliant with the USB 2.0 Specification and will attach to an upstream port as a Full-Speed Hub or as a Full-/High-Speed Hub. The 4- Port Hub supports Low-Speed, Full-Speed, and High-Speed (if operating as a High-Speed Hub) downstream devices on all of the enabled downstream ports.General Features◾ Hub Controller IC with 4 downstream ports◾ High-performance multiple transaction translator MultiTRAK™ Technology Provides one transaction translator per port◾ Enhanced OEM configuration options available through either a single serial i2C EEPROM, or SMBus Slave Port◾ 36-pin (6x6mm) and 48-Pin (7x7mm) QFN lead-free, RoHS compliant packages◾ Footprint compatible with USB2513i and USB2512i (36-pin QFN) to provide designers with flexibility regarding the quantity of USB expansion ports utilized without redesign◾ Supports industrial temperature range of -40ºC to 85ºCHardware Features◾ Low power operation◾ Full Power Management with individual or ganged power control of each downstream port◾ On-chip Power On Reset (POR)◾ Internal 1.8V Voltage Regulator◾ Fully integrated USB termination and Pull-up/Pulldown resistors◾ On Board 24MHz Crystal Driver, Resonator or External 24/48MHz clock input◾ USB host/device speed indicator. Per-port 3-color LED drivers that indicate the speed of USB host and device connection - hi-speed (480 Mbps), full-speed (12 Mbps), low-speed (1.5 Mbps) (48-pin QFN)◾ Enhanced EMI rejection and ESD protection performanceOEM Selectable Features◾ Customize Vendor ID, Product ID, and Device ID◾ Select whether the hub is part of a compound device (When any downstream port is permanently hardwired to a USB peripheral device, the hub is part of a compound device)◾ Flexible port mapping and disable sequence. Ports can be disabled/reordered in any order to support multiple product SKUs. Hub will automatically reorder the remaining ports to match the Host controllers numbering scheme◾ Programmable USB differential-pair pin location◾ Ease PCB layout by aligning USB signal lines directly to connectors◾ Programmable USB signal drive strength. Recover USB signal integrity due to compromised system environment using 4-level driving strength resolution◾ Select the presence of a permanently hardwired USB peripheral device on a port by port basis◾ Configure the delay time for filtering the over-current sense inputs◾ Configure the delay time for turning on downstream port power◾ Configure the polarity of downstream port power control signals◾ Indicate the maximum current that the 4-port hub consumes from the USB upstream port◾ Indicate the maximum current required for the hub controller◾ Supports Custom String Descriptor up to 31 characters in length for:   – Product String   – Manufacturer String   – Serial Number String◾ Pin Selectable Options for Default Configuration   — Select Downstream Ports as Non-Removable Ports   — Select Downstream Ports as Disabled Ports   — Select Downstream Port Power Control and OverCurrent Detection on a Ganged or Individual Basis   — Select Downstream Port Power Control Polarity   — Select USB Signal Drive Strength   — Select USB Differential Pair Pin location   — Select on-chip or off-chip voltage regulator modeApplications◾ LCD monitors and TVs◾ Multi-function USB peripherals◾ PC mother boards◾ Set-top boxes, DVD players, DVR/PVR◾ Printers and scanners◾ PC media drive bay◾ Portable hub boxes◾ Mobile PC docking◾ Embedded systems

Funktionen

• Hub Controller IC with 4 downstream ports
• High-performance multiple transaction translator MultiTRAK™ Technology Provides one transaction translator per port
• Enhanced OEM configuration options available through either a single serial i2C EEPROM, or SMBus Slave Port
• 36-pin (6x6mm) and 48-Pin (7x7mm) QFN lead-free, RoHS compliant packages
• Footprint compatible with USB2513i and USB2512i (36-pin QFN) to provide designers with flexibility regarding the quantity of USB expansion ports utilized without redesign
• Supports industrial temperature range of -40ºC to 85ºC
• Hardware Features
• Low power operation
• Full Power Management with individual or ganged power control of each downstream port
• On-chip Power On Reset (POR)
• Internal 1.8V Voltage Regulator
• Fully integrated USB termination and Pull-up/Pulldown resistors
• On Board 24MHz Crystal Driver, Resonator or External 24/48MHz clock input
• USB host/device speed indicator. Per-port 3-color LED drivers that indicate the speed of USB host and device connection - hi-speed (480 Mbps), full-speed (12 Mbps), low-speed (1.5 Mbps) (48-pin QFN)
• Enhanced EMI rejection and ESD protection performance
• OEM Selectable Features
• Customize Vendor ID, Product ID, and Device ID
• Select whether the hub is part of a compound device (When any downstream port is permanently hardwired to a USB peripheral device, the hub is part of a compound device)
• Flexible port mapping and disable sequence. Ports can be disabled/reordered in any order to support multiple product SKUs. Hub will automatically reorder the remaining ports to match the Host controllers numbering scheme
• Programmable USB differential-pair pin location
• Ease PCB layout by aligning USB signal lines directly to connectors
• Programmable USB signal drive strength. Recover USB signal integrity due to compromised system environment using 4-level driving strength resolution
• Select the presence of a permanently hardwired USB peripheral device on a port by port basis
• Configure the delay time for filtering the over-current sense inputs
• Configure the delay time for turning on downstream port power
• Configure the polarity of downstream port power control signals
• Indicate the maximum current that the 4-port hub consumes from the USB upstream port
• Indicate the maximum current required for the hub controller
• Supports Custom String Descriptor up to 31 characters in length for:
• – Product String
• – Manufacturer String
• – Serial Number String
• Pin Selectable Options for Default Configuration
• — Select Downstream Ports as Non-Removable Ports
• — Select Downstream Ports as Disabled Ports
• — Select Downstream Port Power Control and OverCurrent Detection on a Ganged or Individual Basis
• — Select Downstream Port Power Control Polarity
• — Select USB Signal Drive Strength
• — Select USB Differential Pair Pin location
• — Select on-chip or off-chip voltage regulator mode

Spezifikationen