Targeted at price-sensitive applications such as digital media, printers, and multi-functional devices, the USB2502 hub controller offers a 2-port device for those applications where the primary system requirement is to double the available number of USB2.0 ports. A 2-port expansion option requires fewer components to wire and configure than a 4-port hub. The USB2502 hub controller architecture uses only 36 pins.
"Applications particularly suited for this port expansion solution include USB2.0 peripherals such as printers, scanners and storage devices, where a 2-port, low-power hub allows users to daisy-chain their USB wiring from peripheral-to-peripheral, rather than requiring that each device be directly wired back to the PC," said Steve Nelson, marketing VP for connectivity solutions at SMSC.
The USB2502 controller consumes less than 200 milliamps when operating at the full 480Mbits per second USB2.0 high-speed mode, according to the company, and can be powered by the current available from its upstream USB cable. The USB2502 controller supports bus-powered and self-powered attached peripherals as downstream devices. For self-powered operation, the downstream device attached to the hub provides its own power. In bus-powered mode, all power is derived from the upstream facing port and no external power supply is required.
Samples of the USB2502 hub controller are available now. Pricing in 10K unit volumes is $2.00 per unit.