EVB-USB2412 SMSC, EVB-USB2412 Datasheet - Page 5

• Manufacturer Part Number: EVB-USB2412
• Description: EVALUATION BOARD FOR USB2412
• Manufacturer: SMSC

Specifications of EVB-USB2412

• Design Resources: EVB-USB2412 Schematic EVB-USB2412 BOM
• Main Purpose: Interface, USB 2.0 Hub
• Embedded: No
• Utilized Ic / Part: USB2421
• Primary Attributes: Dual Port Hub, High Speed (480Mbps)
• Secondary Attributes: Single 5V Supply
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1106

2-Port USB 2.0 Hi-Speed Hub Controller
Datasheet
List of Figures
Figure 2.1 USB2412 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 3.1 2-Port 28-Pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3.2 Non-Removable Pin Strap Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 3.3 LED Pin Strap Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 4.1 Reset_N Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 5.1 Supply Rise Time Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 6.1 Typical Crystal Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 6.2 Formula to Find the Value of C1 and C2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 6.3 Ceramic Resonator Usage with SMSC IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 7.1 USB2412 28-Pin QFN Package Outline (5x5 mm Body, 0.5 Pitch, 3.1 ePad). . . . . . . . . . . . 23
Figure 7.2 Recommended Printed Circuit Board (PCB) Land Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 7.3 28-Pin Package Tape Dimensions and Part Orientation (mm) . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 7.4 28-Pin Package Tape Length and Part Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 7.5 Package Reel Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
SMSC USB2412
5
Revision 1.0 (02-12-10)
DATASHEET