USB hub controllers cut power consumption

Cypress Semiconductor has introduced its next generation of high-speed USB 2.0 hub controllers.

Cypress Semiconductor has introduced its next generation of high-speed USB 2.0 hub controllers.

The EZ-USB HX2LP controller, the newest member of the low-power EZ-USB LP family, is optimised for cost-sensitive applications including stand-alone hubs, monitors, docking stations, keyboards, motherboards and more.

The EZ-USB HX2LP is USB-IF and Windows Hardware-Quality Lab (WHQL)-compliant and is available in four-port (CY7C65630-56LFXC) and two-port (CY7C65620-56LFXC) options.

The device integrates many external passive components, such as pull-up and pull-down resistors, along with gang port power control to reduce the overall bill-of-materials required to implement a hub design.

The EZ-USB HX2LP, which supports bus-powered and self-powered modes, is available in a small form factor 56-pin QFN package that is backward compatible with Cypress's TetraHub controller.

"Cypress has remained the market leader in USB because we offer a range of products to meet all of our customers' applications while consistently delivering high-quality reference designs and worldwide technical support", said Scott Harmel, Vice President of Marketing for Cypress's Consumer and Computation Division.

"The new EZ-USB HX2LP builds on the success of our TetraHub controllers by delivering the EZ-USB LP family's outstanding low power consumption cost-optimised for systems using hub designs".

The EZ-USB LP family takes advantage of advanced process technology developed by Cypress to slash dynamic and standby power consumption by nearly 50%.

As a result of the low dynamic power, peripherals using the new devices can operate from the power of the USB bus.

The low standby current enables portable USB applications to significantly extend battery life.

The new EZ-USB HX2LP is in full production and priced under $2.00 in high volume.

Cypress offers the CY4605 reference design (for the CY7C65620-56LFXC) and the CY4606 reference design (for the CY7C65630-56LFXC).

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