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SMSC USB20H04 Page 1 Revision 1.63 (03-30-07) DATASHEET USB20H04 4-Port USB 2.0 Hub Contr oller Datasheet Product Features General Features Compliant with USB 2.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 2 SMSC USB20H04 DATASHEET 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2007 SMSC or its subs idiaries.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 3 Revision 1.63 (03-30-07) DATASHEET T able of Content s Chapter 1 General D escription ............................................................................................................
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 4 SMSC USB20H04 DATASHEET List of Figures Figure 2.1 - Bl ock Di agram..................................................................................................... .........
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 5 Revision 1.63 (03-30-07) DATASHEET Chapter 1 General Description The USB20H04 four-port hub controller is fully comp liant with the USB 2.0 Specification and does not require firmware development.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 6 SMSC USB20H04 DATASHEET 1.2 OEM Selectable Features The 4-Port Hub supports seve ral OEM selectable features: Operation as a bus-pow ered, self-pow ered or dynamic-powered hub.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 7 Revision 1.63 (03-30-07) DATASHEET Chapter 2 Functional Block Diagram To Upstream V BUS Upstream PHY Upstream USB Data Repeater Controller SIE .
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 8 SMSC USB20H04 DATASHEET Chapter 3 Pinout AM3_N GR2_N AM1_N 48 47 46 45 44 43 42 41 TEST_P3 VSS OCS3_N VBUS 3_N OCS4_N VBUS 4_N C.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 9 Revision 1.63 (03-30-07) DATASHEET Chapter 4 Interface Signal Definition 4.1 Pin Descriptions Table 4.1 - System Interface Signals NAME BUFFER TYPE A CTIVE LEVEL DESCRIPTION RESET_N IS Low Chip Reset .
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 10 SMSC USB20H04 DATASHEET Table 4.3 - USB I/O Signals NAME BUFFER TYPE A CTIVE LEVEL DESCRIPTION USBDP0 IO-U N/A Upstream USB Positive Data Pin. USBDM0 IO-U N/A Upstream USB Negative Data Pin.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 11 Revision 1.63 (03-30-07) DATASHEET Table 4.4 - Biasing and Cl ock Oscillator Signals NAME BUFFER TYPE A CTIVE LEVEL DESCRIPTION RBIAS I-R N/A External 1% bias resistor. Requires a 12K Ω resistor to ground.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 12 SMSC USB20H04 DATASHEET Chapter 5 Limiting V alues Table 5.1 - Absolute Maximum Ratings (In accordance with the Absolute Maximum Rating sy stem (IEC 60134) PA RAMETER SYMBOL CONDITIONS MIN TYP MA X UNITS 1.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 13 Revision 1.63 (03-30-07) DATASHEET Chapter 6 Electrical Characteristics Table 6.1 - Electric al Characteris tics: Supply Pins (V DD1.8 =1.74 to 2.0V; V DD3.3 =3.0 to 3.6V; V SS = 0V; T A = 0 o C to +70 o C; unless otherw ise specified.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 14 SMSC USB20H04 DATASHEET PA RAMETER SYMBOL COMMENTS MIN TYP MA X UNITS I, IPD, IPU Input Buffer Low Input Level High Input Level Low Input Leakage High Input Leakage V ILI V IHI I IL I IH TTL Levels TTL Levels V IN = 0 V IN = V DD3.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 15 Revision 1.63 (03-30-07) DATASHEET Table 6.4 - DC Electrical Characteristics: Analog I/O Pins (DP/DM) (VDD1.8 =1.74 to 2.0V; VDD3.3 =3.0 to 3.6V; VSS = 0V; TA = 0 o C to +70 o C; unless otherw ise specified.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 16 SMSC USB20H04 DATASHEET Chapter 7 Functional Overview Figure 2.1 show s the functional block diagram of the USB 2.0 Hub Controlle r. Each of the functions is described in detail below.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 17 Revision 1.63 (03-30-07) DATASHEET 7.5 Serial Interface External configuration dat a is loaded via the serial interface. T he serial interface appears as either an SMBus slave, or an I 2 C memory interface.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 18 SMSC USB20H04 DATASHEET 7.9 Transaction Translator (TT) The transaction translator supports full-speed and low-s peed devices attached to dow nstream ports in the high-speed environment.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 19 Revision 1.63 (03-30-07) DATASHEET Each port’s indicator must be located in a position that obviously associates the indicator with the port. The color and state of the LED is used to pr ovide status information to the user.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 20 SMSC USB20H04 DATASHEET Chapter 8 Implementation Notes The following sections consist of se lect functional explanations to aid in implementing the Hub Controller into a system. 8.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 21 Revision 1.63 (03-30-07) DATASHEET 8.1.2 Internal Default Configuration The internal default configuration is enabled w hen SMB_SEL_N is high and CS/EE_SEL is low on the rising edge of RESET_N.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 22 SMSC USB20H04 DATASHEET Detailed definition of the bits used to program the OEM values are giv en in Table 8.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 23 Revision 1.63 (03-30-07) DATASHEET BIT FIELD NA ME DESCRIPTION 3:0 Port Non-Active Selects which ports ar e active. A one indicates that the port is non-active: Bit 3: Port 4 is non-active. Bit 2: Port 3 is non-active.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 24 SMSC USB20H04 DATASHEET Table 8.6 - Default Configuration Va lues REGISTER ADDRESS REGISTER NA ME SELF-POWERED DEFA ULT (HEX) B.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 25 Revision 1.63 (03-30-07) DATASHEET 8.4.1.1 SMBus Configuration Timing Figure 8.3 - Timing for Configuration from SMBus Table 8.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 26 SMSC USB20H04 DATASHEET 8.4.1.2 EEPROM Configuration Timing Figure 8.4 - Timing to Complete Configuration from EEPROM Table 8.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 27 Revision 1.63 (03-30-07) DATASHEET 8.4.2 USB Reset When the upstream host signals a reset, the USB20H04 does the following: Note: T he USB20H04 does not propagate the upstr eam USB Reset to downstream devices! 1.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 28 SMSC USB20H04 DATASHEET Chapter 9 Hub Descriptors The USB20H04 will not electrically attach to the USB until after it has loaded valid data for all user-defined descriptor fields.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 29 Revision 1.63 (03-30-07) DATASHEET Table 9.3 - Standard Config u ration Descriptor OFFSET FULL SPEED HIGH SPEED FIELD NAME DESCRIPTION 0 09h 0.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 30 SMSC USB20H04 DATASHEET OFFSET FULL SPEED HIGH SPEED FIELD NAME DESCRIPTION 4 01h 01h** bNumInterfaces Number of interfaces supported by this configuration 5 01h 01h bConfigurationValue Value to use to select configuration.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 31 Revision 1.63 (03-30-07) DATASHEET Table 9.7 - Interface Descriptor (present if multip le-TT) OFFSET HIGH SPEED FIELD NA ME DESCRIPTION 0 09h .
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 32 SMSC USB20H04 DATASHEET OFFSET FIELD NA ME VA LUE DESCRIPTION 6 HubContrCurrent user Maximum current requirements of the hub controller electronics in mA. Derived from OEM value.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 33 Revision 1.63 (03-30-07) DATASHEET Chapter 10 Application Diagrams The highly-integrated USB20H04 Hub Controller is co mplemented with a minimal number of external components to create a complete four-port Hi-S peed USB hub application.
4-Port USB 2.0 Hub Controller Datasheet Revision 1.63 (03-30-07) Page 34 SMSC USB20H04 DATASHEET USB20 H04 (Port 1) Downstream V BUS Power Source VDD3.3 Power Switch OC Sense IN EN OC OUT VBUS1_N OCS1_N GR1_N AM1_N USBDP1 USBDM1 V BUS D+ D- Green Indicator Amber Indicator USB T ype A Connector Figure 10.
4-Port USB 2.0 Controller Datasheet SMSC USB20H04 Page 35 Revision 1.63 (03-30-07) DATASHEET Chapter 11 Package Outline Figure 11.1 - 64 Pin TQFP Package Outlin e, 10 x 10 x 1.4 Body, 2 MM Footprint Table 11.1 - 64 Pin TQF P Packag e Parameters MIN NOMINA L MAX REMA RKS A ~ ~ 1.
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