Silicon Labs has added a smaller, lower-power member to its family of USBXpress bridge devices, providing a simpler, faster way to add Universal Serial Bus (USB) connectivity to new and legacy embedded designs.
The new CP2102N USB controller eliminates complex, time-consuming firmware development and provides advanced functionality in QFN packages as small as 3 x 3 mm. The CP2102N device simplifies USB-to-UART connectivity for a wide range of portable, power-sensitive and space-constrained applications such as USB dongles, point-of-sale (POS) terminals, data loggers, gaming controllers and personal medical devices.
The controller provides a drop-in solution for adding USB to new designs and also for updating existing RS-232 designs to USB using minimal components and printed circuit board (PCB) space. Based on an architecture that eliminates the need for costly external crystals, resistors and other external components, the fixed-function bridge device integrates a USB 2.0 Full Speed controller and UART interface in a single-chip solution.
The CP2102N delivers a low operating current of <10 mA and integrates advanced features such as remote wake-up capability and USB battery charger detection, allowing the device to wake up a suspended host and to detect the type of charger connected to the system.
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