USB2512 View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

USB2512

USB 2.0 Hi-Speed Hub Controller

Unspecified 

USB2512/12A/12B

USB2513/13B

USB2514/14B

USB2517

USB 2.0 Hi-Speed

Hub Controller

PRODUCT FEATURES

Datasheet

General Description

Features

The SMSC USB251x hub is a family of low-power, OEM

configurable, MTT (multi transaction translator)1 hub

controller IC products for embedded USB solutions. The

“x” in the part number indicates the number of

downstream ports available. The SMSC hub supports

low-speed, full-speed, and hi-speed (if operating as a hi-

speed hub) downstream devices on all of the enabled

downstream ports.

For a summary of the products documented in this

datasheet, please refer to the Chapter 1, "USB251x Hub

Family Differences Overview," on page 7.

Highlights

„ High performance, low-power, small footprint hub

controller IC with 2, 3, 4, or 7 downstream ports

(indicated by the “x” in the part number)

„ Fully compliant with the USB 2.0 specification

„ Enhanced OEM configuration options available

through either a single serial I2C® EEPROM, or

SMBus slave port

„ MultiTRAKTM

— High-performance multiple transaction translator which

provides one transaction translator per port

„ PortMap

— Flexible port mapping and disable sequencing

„ PortSwap

— Programmable USB differential-pair pin locations ease

PCB design by aligning USB signal lines directly to

connectors

„ PHYBoost

— Programmable USB signal drive strength for recovering

signal integrity using 4-level driving strength resolution

„ USB251xB/xBi products are fully footprint compatible

with USB251x/xi/xA/xAi products as direct drop-in

replacements

— Cost savings include using the same PCB components

and application of USB-IF Compliance by Similarity

„ Full power management with individual or ganged

power control of each downstream port

„ Fully integrated USB termination and pull-up/pull-

down resistors

„ Supports a single external 3.3 V supply source;

internal regulators provide 1.2 V or 1.8 V internal

core voltage

„ Onboard 24 MHz crystal driver, ceramic resonator, or

external 24/48 MHz clock input

„ Customizable vendor ID, product ID, and device ID

„ 4 kilovolts of HBM JESD22-A114F ESD protection

(powered and unpowered)

„ Supports self- or bus-powered operation

„ USB251xB and USB251xBi products support the

USB Battery Charging specification Rev. 1.1 for

Charging Downstream Ports (CDP)

„ Lead-free RoHS compliant packages:

— 36-pin QFN (6x6 mm)

— 48-pin QFN (7x7 mm)

— 64-pin QFN (9x9 mm)

„ USB251xi, USB2512Ai, and USB251xBi products

support the industrial temperature range of -40ºC

to +85ºC

„ USB251xB products support the extended

commercial temperature range of 0ºC to +85ºC

Applications

„ LCD monitors and TVs

„ Multi-function USB peripherals

„ PC motherboards

„ Set-top boxes, DVD players, DVR/PVR

„ Printers and scanners

„ PC media drive bay

„ Portable hub boxes

„ Mobile PC docking

„ Embedded systems

1.USB2512A/Ai only uses a single transaction translator.

SMSC USB251x Hub Family

DATASHEET

Revision 1.1 (04-26-10)

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