smsc usb2512a product preview revision 1.96 (07-11-08) 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 compliant 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 i 2 c 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 curr ent 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 other information relati ng to smsc products are included as a means of illustrating typical applications. consequently, complete information sufficient for construction purposes is not necessarily given. although the information has been checked and is believed to be accurate, no re sponsibility is assumed for inaccuracies. smsc reserves the right to make changes to specifications and product descriptions at any time without notice. contact your local sm sc 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 semicond uctor 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 te rms 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 pro duct may contain design defects or errors known as anomalies which may cause the product's functions to deviate from published specifications. anomaly sheets are availab le 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 prior written approval of an officer of smsc 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 h ttp://www.smsc.com. smsc is a registered trademark of standard microsystems corporation (?smsc?). produc t names and company names are th e trademarks of their respective holders. smsc disclaims and excludes any and all warranties, including without limitation an y and all implied warranties of merchantabil ity, fitness for a particular purpose, title, and against infringement and the like, and any and all warranties arising from any cou rse of dealing or usage of trade. in no event shall smsc be liabl e for any direct, incidental, indi rect, special, punitive, or cons equential damages; or for lost data, profits, savings or revenues of any kind; regardless of the form of action, whether based on contrac t; tort; negligence of smsc or others; strict liability; breach of warranty; or otherwise; whether or not any remedy of buyer is h eld to have failed of its essential purpose, and whether or no t 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 qfn-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 upstream v bus 3.3v upstream phy upstream usb data repeater controller sie serial interface pll 24 mhz crystal to eeprom or smbus master routing & port re-ordering logic sck sd tt port controller bus-power detect/v bus pulse 1.8v 1.8v reg 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
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