General Description
The MAX3349E ±15kV ESD-protected, USB transceiver provides a full-speed USB interface to a lower voltage microprocessor or ASIC. The device supports enumeration, suspend, and VBUS detection. A special UART multiplexing mode routes external UART signals (Rx and Tx) to D+ and D-, allowing the use of a shared connector to reduce cost and part count for mobile devices.

Features
♦ ±15kV ESD HBM Protection on D+ and D-
♦ UART Mode Routes External UART Signals to D+/D-
♦ Internal Linear Regulator Allows Direct Powering from the USB Cable
♦ Separate Voltage Input for UART Transmitter/Receiver (VUART)
♦ Internal 1.5kΩ Pullup Resistor on D+ Controlled by Enumerate Input
♦ Internal Series Termination Resistors on D+ and D-
♦ Complies with USB Specification Revision 2.0, Full-Speed 12Mbps Operation
♦ Built-In Level Shifting Down to +1.4V, Ensuring Compatibility with Low-Voltage ASICs
♦ VBUS Detection
♦ Combined VP and VM Inputs/Outputs
♦ No Power-Supply Sequencing Required
♦ Available in 16-Bump UCSP (2mm x 2mm) Package

Applications
    Cell Phones
    PDAs
    Digital Cameras
    MP3 Players