EVB-USB2412 SMSC, EVB-USB2412 Datasheet

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... PRODUCT FEATURES General Description The SMSC USB2412 hub is a low-power, single transaction translator (STT) hub controller IC with two downstream ports for embedded USB applications. The SMSC hub controller supports low-speed, full-speed, and hi-speed (if operating as a hi-speed hub) downstream devices on all of the enabled downstream ports ...

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... 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’ ...

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... Maximum Guaranteed Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5.2 Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5.2.1 Pin Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 5.2.2 Package Thermal Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Chapter 6 AC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.1 Oscillator/Crystal 6.2 Ceramic Resonator 6.3 External Clock 6.3.1 USB 2 Chapter 7 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 7.1 Tape and Reel Specification SMSC USB2412 3 DATASHEET Revision 1.0 (02-12-10) ...

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... Table 4.1 Reset_N Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 5.1 DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Table 5.2 Pin Capacitance Table 5.3 36-Pin QFN Package Thermal Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Table 6.1 Crystal Circuit Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Table 7.1 Package Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Revision 1.0 (02-12-10) 2-Port USB 2.0 Hi-Speed Hub Controller 4 DATASHEET Datasheet SMSC USB2412 ...

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... Figure 6.1 Typical Crystal Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 6.2 Formula to Find the Value of C1 and Figure 6.3 Ceramic Resonator Usage with SMSC Figure 7.1 USB2412 28-Pin QFN Package Outline (5x5 mm Body, 0.5 Pitch, 3.1 ePad Figure 7.2 Recommended Printed Circuit Board (PCB) Land Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 7 ...

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... OCS: Over-Current Sense PCB: Printed Circuit Board PHY: Physical Layer PLL: Phase-Locked Loop QFN: Quad Flat No Leads RoHS: Restriction of Hazardous Substances Directive SIE: Serial Interface Engine TT: Transaction Translator Revision 1.0 (02-12-10) 2-Port USB 2.0 Hi-Speed Hub Controller 6 DATASHEET Datasheet SMSC USB2412 ...

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... USB 2.0 Hi-Speed Hub Controller Datasheet Chapter 2 Block Diagram To Upstream V BUS Bus- Power Detect/ V Pulse bus 3.3 V Regulator CRFILT SMSC USB2412 Upstream USB Data 3.3 V Regulator Upstream PHY Serial Interface Repeater Engine Transaction Translator Routing & Port Re-Ordering Logic PHY#2 ...

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... SMSC 24 USB2412 25 (Top View QFN-28 Ground Pad (must be connected to VSS) Indicates pins on the bottom of the device. Figure 3.1 2-Port 28-Pin QFN 8 DATASHEET 2-Port USB 2.0 Hi-Speed Hub Controller Datasheet 10. Please refer 14 VDD33 13 NON_REM[1] 12 OCS_N[2] 11 PRTPWR[2] 10 VDD33 9 CRFILT 8 OCS_N[1] SMSC USB2412 ...

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... UPSTREAM USB 2.0 INTERFACES (3 PINS) USBDP_UP DOWNSTREAM 2-PORT USB 2.0 INTERFACES (9 PINS) USBDP_DN[1] PRT_PWR[1] RBIAS RESET_N NON_REM[1] POWER, GROUND, AND NO CONNECTS (9 PINS) (5) VDD33 NC SMSC USB2412 Table 3.1 USB2412 28-Pin Table USBDM_UP VBUS_DET USBDM_DN[1] USBDP_DN[2] PRT_PWR[2] OCS_N[1] MISC (7 PINS) TEST XTALIN / CLKIN ...

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... These pins connect to the upstream USB bus data signals (host, port, or upstream hub). Detect Upstream VBUS Power Detects the state of Upstream VBUS power. The SMSC hub monitors VBUS_DET to determine when to assert the internal D+ pull-up resistor which signals a connect event. When designing a detachable hub, this pin should be connected to VBUS on the upstream port via voltage divider ...

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... NON_REM[0] 16 HS_IND I/O12 24 XTALIN ICLKx CLKIN SMSC USB2412 DESCRIPTION MISC Non-removable Port Strap Option This pin will be sampled (in conjunction with SUSP_IND / NON_REM[0]) at RESET_N negation to determine if ports [2:1] contain permanently attached (non-removable) devices: NON_REM[1:0] = ‘00’, all ports are removable. NON_REM[1:0] = ‘01’, port 1 is non-removable. ...

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... Ground Pad / ePad The package slug is the only VSS for the device and must be tied to ground with multiple vias. No Connect No signal or trace should be routed or attached to these pins. Table 3.3 Buffer Type Descriptions DESCRIPTION 12 DATASHEET 2-Port USB 2.0 Hi-Speed Hub Controller Datasheet SMSC USB2412 ...

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... Strap High and Strap Low. Use the Strap High configuration to set the strap option value to a ‘1’. Use the Strap Low configuration to set the strap option value to ‘0’. Strap Pin HUB SMSC USB2412 DESCRIPTION Figure 3.2 shows an example of Strap High and Strap Low. Use the Strap +V 50 kΩ ...

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... Chapter 4 Internal Default Configuration 4.1 Hub SMSC’s USB 2.0 hub is fully specification compliant to the Universal Serial Bus specification, version 2.0, April 27, 2000 (12/7/2000 and 5/28/2002 Errata). Please reference Chapter 10 (Hub specification) for general details regarding hub operation and functionality. The hub provides 1 Transaction Translator (TT) that is shared by both downstream ports (defined as Single-TT configuration) ...

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... In response to the upstream port signaling a reset to the hub, the hub does the following: Note: The hub does not propagate the upstream USB reset to downstream devices. 1. Sets default address to ‘0’. 2. Sets configuration to: Unconfigured. 3. Negates PRTPWR[2:1] to all downstream ports. 4. Clears all TT buffers. SMSC USB2412 Drive Strap Attach Outputs to USB Reset USB ...

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... The host then configures the hub and the hub’s downstream port devices in accordance with the USB specification. Note: The hub does not propagate the upstream USB reset to downstream devices. Revision 1.0 (02-12-10) 2-Port USB 2.0 Hi-Speed Hub Controller 16 DATASHEET Datasheet SMSC USB2412 ...

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... Operating Conditions PARAMETER SYMBOL Operating T A Temperature 3.3 V supply voltage VDD33 3.3 V supply rise t RT time Voltage on any I/O pin Voltage on XTALIN SMSC USB2412 SYMBOL MIN T -55 STOR VDD33 PLLFILT CRFILT -0.5 -0.5 -0.5 MIN MAX UNITS 0 70 °C 3 ...

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... ILL I -35 IHL V ILCK V 1.4 IHCK I - DATASHEET 2-Port USB 2.0 Hi-Speed Hub Controller Datasheet 100% UNITS COMMENTS 0.8 V TTL Levels V μA + VDD33 IN 350 mV 0.8 V TTL Levels V μA + μA + VDD33 IN 0.8 V TTL Levels V μA - μA - VDD33 IN 0 μA + VDD33 IN SMSC USB2412 ...

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... Supply Current Configured Full-Speed Host, each additional downstream port Supply Current Suspend Supply Current Reset Note 5.4 Output leakage is measured with the current pins in high impedance. Note 5.5 See USB 2.0 specification for USB DC electrical characteristics. SMSC USB2412 SYMBOL MIN TYP MAX V 0 ...

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... The maximum capacitance values include the full length of the pin pad. Please see the Y dimension in Figure VELOCITY (meters/sec) SYMBOL 0 Θ Ψ DATASHEET 2-Port USB 2.0 Hi-Speed Hub Controller Datasheet TEST CONDITION = 25°C A 7.2. VALUE UNIT 40.3 °C/W 35.2 0.5 °C/W 0.6 SMSC USB2412 ...

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... SMSC USB2412 XTAL1 ( XTAL2 (C Figure 6.1 Typical Crystal Circuit Table 6.1 Crystal Circuit Legend IN ACCORDANCE WITH Crystal manufacturer’s specification (See OEM board design SMSC IC and OEM board design SMSC IC Calculated values based on Find the Value of C1 and C2" – – – ...

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... V CMOS Logic. XTALOUT should be treated connect. 6.3.1 USB 2.0 The SMSC Hub conforms to all voltage, power, and timing characteristics and specifications as set forth in the USB 2.0 specification. Please refer to the USB 2.0 specification for more information. Revision 1.0 (02-12-10) 2-Port USB 2 ...

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... Details of terminal #1 identifier are optional. However, they must be located within the area indicated. 4. Coplanarity zone applies to exposed pad and terminals. SMSC USB2412 Table 7.1 Package Parameters MAX 0.85 1.00 ...

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... Figure 7.2 Recommended Printed Circuit Board (PCB) Land Pattern 7.1 Tape and Reel Specification Figure 7.3 28-Pin Package Tape Dimensions and Part Orientation (mm) Figure 7.4 28-Pin Package Tape Length and Part Quantity Revision 1.0 (02-12-10) 2-Port USB 2.0 Hi-Speed Hub Controller 24 DATASHEET Datasheet SMSC USB2412 ...

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... USB 2.0 Hi-Speed Hub Controller Datasheet SMSC USB2412 Figure 7.5 Package Reel Specifications 25 DATASHEET Revision 1.0 (02-12-10) ...