General Description
The ICS950910 is a single chip clock solution for desktop designs using the VIA P4X/P4M/KT/KN266/333 style chipsets with PC133 or DDR memory.
The ICS950910 is part of a whole new line of ICS clock generators and buffers called TCH™ (Timing Control Hub).
This part incorporates ICS's newest clock technology which offers more robust features and functionality.
Employing the use of a serially programmable I2C interface, this device can adjust the output clocks by configuring the frequency setting, the output divider ratios, selecting the ideal spread percentage, the output skew, the output strength, and enabling/disabling each individual output clock.
M/N control can configure output frequency with resolution up to 0.1MHz increment.

Features/Benefits
* Programmable output frequency.
* Programmable output divider ratios.
* Programmable output rise/fall time.
* Programmable output skew.
* Programmable spread percentage for EMI control.
* DDR output buffer supports up to 200MHz.
* Watchdog timer technology to reset system if system malfunctions.
* Programmable watch dog safe frequency.
* Support I2C Index read/write and block read/write operations.
* Uses external 14.318MHz crystal.

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PRODUCT FEATURES

General Description
 The 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 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 USB2513 and USB2512 (36-pin QFN) to provide designers with flexibility regarding the quantity of USB expansion ports utilized without redesign

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 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 controller's 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 Over-
Current 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

Applications
* 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

USB2514-AEZG
USB2514-HZH

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