EVB-3280 Standard Microsystems (SMSC), EVB-3280 Datasheet - Page 2

• Manufacturer Part Number: EVB-3280
• Manufacturer: Standard Microsystems (SMSC)

Specifications of EVB-3280

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Revision 2.0 (12-18-06)
1 Overview
1.1
1.2
1.3
1.4
3.3 Volt Power Supply
Edge Connector for Digital I/O
Crystal Oscillator
USB Connector
The EVB-USB3280 is a T&MT Daughter Card that may be attached to a USB link layer system to
create a USB device. The board edge connector meets the UTMI specification requirements for the
T&MT connector. The EVB-USB3280 supports the 8-bit bidirectional UTMI digital interface. A link to
both the UTMI specification and the T&MT specification is located in the SPECIFICATIONS section of
the USB3280 web page on the SMSC web site.
The EVB-USB3280 requires a 3.3 volt supply capable of providing 80mA of current to be present at
the T&MT connector.
The T&MT edge connector is compliant to the UTMI specification. The 100 pin edge connector on the
EVB-USB3280 is an AMP 2-557101-5, and it mates with the AMP 2-557100-5.
The 24 MHz crystal is connected to the internal oscillator of the USB3280. A PLL circuit in the
USB3280 generates the 60MHz CLKOUT signal used by the link layer.
A standard type-B connector is provided to attach to the bus.
Connector
Type B
USB
Figure 1 Top View of the EVB-USB3280
USB3280
2
Test Points
J2 - J6
Connector
100-Pin
T&MT
EVB-USB3280 User Manual
SMSC EVB-USB3280