SMSC USB2512A PRODUCT PREVIEW Revision 1.96 (07-1 1-08)
Data Brief
PRODUCT FEATURES
USB2512A
USB 2.0 Hi-Speed 2-Port
Hub Controller
General Description
The SMSC 2-Port Hub is a low power, OEM
configurable, STT (Single transaction translator) hub
controller IC with 2 downstream ports for embedded
USB solutions. The 2-port hub is fully comp liant with the
USB 2.0 Specification and will attach to an upstream
port as a Full-Speed Hub or as a Full-/Hi-Speed Hub.
The 2-Port 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.
General Features
Hub Controller IC with 2 downstream ports
Enhanced OEM configuration options available
through either a single serial I2C EEPROM, or
SMBus Slave Port
36-pin (6x6mm) QFN lead-free, RoHS compliant
package
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/Pull-
down resistors
On Board 24MHz Crystal Driver, Resonator or
External 24MHz clock input
Enhanced EMI rejection and ESD protection
performance
OEM Selectable Features
Customizable 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 2-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
Indicate the maximum current that the 2-port hub
consumes from the USB upstream port
Indicate the maximum current required for the hub
controller
Pin Selectable Options for Default Configuration
— Select Downstream Ports as Non-Removable Ports
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
ORDER NUMBER:
USB2512A-AEZG FOR 36 PIN, QFN LEAD-FREE ROHS COMPLIANT PACKAGE
80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123
Copyright © 2008 SMSC or its subsidiaries. All rights reserved.
Circuit diagrams and o ther information relati ng to SMSC products are in cluded as a means of illu strating typical applications. Conse quently, complete information sufficient for
construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC
reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications
before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent
rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated
version of SMSC's standard Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or errors
known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not
designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property
damage. Any and all such uses without p rior written approval of an Officer of SMS C and further testing and /or modification will be fully at the risk of the customer. Copies of
this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSC’s website at http://www.smsc.com. SMSC is a registered
trademark of Standard Microsystems Corporation (“SMSC”). Product names and company names are the trademarks of their respective holders.
SMSC DISCLAIMS AN D EX CLU DES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION AN Y AND ALL IMP LIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOS E, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND ALL WAR RANTIES ARISING FROM ANY COURSE
OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL
DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON CONTRACT;
TORT; NEGLIGENCE OF SMSC OR OTHERS; STRICT LIAB ILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR NOT ANY REMEDY OF BUYER IS HELD
TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
USB 2.0 Hi-Speed 2-Port Hub Controller
Revision 1.96 (07-11-08) 2 SMSC USB2512A
PRODUCT PREVIEW
USB 2.0 Hi-Speed 2-Port Hub Controller
SMSC USB2512A 3 Revision 1.96 (07-11-08)
PRODUCT PREVIEW
Pin Configuration
Figure 1 USB2512A 36-Pin QFN (Embedded Footprint)
Thermal Slug
(must be connected to VSS)
SMSC
USB2512A
Embedded Footprint
(Top View Q FN-36)
Indicates pins on the bottom of the device.
26
VDD33
25
RESET_N
24
HS_IND/CFG_SEL1
23
SCL/SMBCLK/CFG_SEL0
22 SDA/SMBDATA/NON_REM1
21 NC
20 NC
19
VBUS_DET
27
NC
18 NC
17 OCS2_N
16 PRTPWR2
15
OCS1_N
14
VDD33CR
13
VDD18
12 PRTPWR1
11 TEST
10 VDDA33
SUSP_IND/LOCAL_PWR/NON_REM0 28
VDDA33 29
USBUP_DP 31
XTAL2 32
XTAL1/CLKIN 33
RBIAS
36
VDD33PLL
35
VDD18PLL 34
USBUP_DM 30
VDDA33
1
USBDN1_DM
2
USBDN1_DP
3
USBDN2_DM
4
USBDN2_DP
5
NC 6
NC 7
NC 8
NC 9
USB 2.0 Hi-Speed 2-Port Hub Controller
Revision 1.96 (07-11-08) 4 SMSC USB2512A
PRODUCT PREVIEW
Block Diagram
Figure 2 USB2512A Block Diagram
To U pstream
VBUS
3.3V
Upstream
PHY
Upstream USB
Data
Repeater Controller
SIE
Serial
Interface
PLL
24 M H z C rystal To EEPR OM or
SMB us M aster
Ro uting & P ort Re-Ordering Logic
SCKSD
TT Port
Controller
Bus-Power
Detect/VBUS
Pulse
1.8V
1.8V R eg
PHY#1
Port #1
OC
Sense
Switch
Driver
LED
Drivers
PHY#2
Port #2
OC
Sense
Switch
Driver
LED
Drivers
USB Data
Downstream OC Sense
Switch/LED
Drivers
USB Data
Downstream OC Sense
Switch/LED
Drivers
SMSC USB2512A 5 Revision 1.96 (07-11-08)
PRODUCT PREVIEW
USB 2.0 Hi-Speed 2-Port Hub Controller
Package Outline
Figure 3 36-Pin QFN, 6x6mm Body, 0.5mm Pitch
