MICROCHIP MIC2551AYML25

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. This in turn, eases 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 V_BUS. This reduces system operating current and allows the system to operate at its core voltage without additional buffering logic. MIC2551A-2.5 is differentiated from MIC2551A by a smaller space saving MLF package (2.5mm×2.5mm) and ±15KV ESD protection which eliminates the need for separate ESD protection devices on the D+, D- data lines.

• ±15KV ESD protection on V_BUS, D+ and D
• Smaller 2.5mm×2.5mm MLF package
• USB 1.1 and 2.0 compliant transceiver (full speed - 12Mbs and low speed - 1.5Mbps) operation
• Separate I/O supply with operation down to 1.6V
• Integrated speed select termination supply
• Very-low power consumption to meet USB suspend current requirements
• No power supply sequencing requirements
• Software controlled enumeration

• PDAs
• Palmtops
• Cell phones
• PC peripherals