MIC2551A

MIC2551A MIC2551A USB Transceiver Micrel, Inc. General Description The MIC2551A is a single chip transceiver that complies with the physical layer specifications of the Universal Serial Bus (USB) 2.0. It supports both full speed (12Mbps) and low speed (1.5Mbps) operation and introduces superior edge rate control, producing crisper eye diagrams, which ease the task of passing USB compliance testing. A unique, patented, dual supply voltage operation allows the MIC2551A to reference the system I/F I/O signals to a supply voltage down to 1.6V while independently powered by the USB VBUS. This allows the system interface to operate at its core voltage without addition of buffering logic and also reduce system operating current. Features Compliant to USB Specification Revision 2.0 for full speed (12Mbs) and low speed (1.5Mbps) operation Compliant to IEC-61000-4.2 (Level 3) Separate I/O supply with operation down to 1.6V Integrated speed select termination supply Very-l...