Product category: Communications ICs (Wired)
News Release from: Cypress Semiconductor | Subject: CY7C65640
Edited by the Electronicstalk Editorial Team on 30 October 2001
Hub controller supports all three USB
speeds
Cypress Semiconductor has released the industry's highest-performance USB 2.0 hub controller.
Cypress Semiconductor has released the industry's highest-performance USB 2.0 hub controller The only hub controller to integrate four transaction translators, the Cypress TetraHub allows all three USB speeds - low-speed (1.5Mbit/s), full-speed (12Mbit/s) and hi-speed (480Mbit/s) - to coexist in any USB-enabled system
This article was originally published on Electronicstalk on 11 Feb 2004 at 8.00am (UK)
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Hub controller keeps USB running at full speed
TetraHub USB hub controller chips are shipping in a new multiport hub being announced this week by Belkin, the world's leading manufacturer of USB hub devices.
USB 2.0 hub controller passes muster
The Cypress Semiconductor TetraHub USB 2.0 hub controller has successfully passed the full suite of compliance tests set by the USB Implementers Forum (USB-IF).
"Transaction translators are crucial in ensuring the forward- and backward-compatibility of USB 1.1 and 2.0", said Paul Novell, director of marketing for Cypress's Personal Communications Division.
"The transition to USB 2.0 means that hubs now need to manage and coordinate traffic between the host and downstream peripherals, regardless of their speeds.
Only a powerful hub controller such as the TetraHub can provide the system intelligence needed by the hub for high levels of data control".
The CY7C65640 USB 2.0 hub controller implements Cypress's innovative 'Tetra' architecture, providing four transaction translators to four downstream peripheral ports.
This design architecture is superior in performance to single transaction translator designs currently on the market.
TetraHub is a fixed-function solution, requiring no firmware intervention, thereby reducing design risk and development time.
The TetraHub may be used as a high-bandwidth controller in standalone hubs, monitor hubs, port replicators and docking stations.
Additionally, the controller may be used to increase the number of USB ports on a PC without integrating additional host controllers.
The TetraHub controller is available in a space-saving, cost-effective 56-lead QFN.
Cypress also offers a reference design and evaluation kit to shorten and simplify product design cycles.
"USB 2.0 represents an exciting inflection point in PC connectivity, offering high performance with the same ease-of-use model.
TetraHub gives our customers the opportunity to capture new market share or build on their existing business", said Jeff Chang, Cypress product marketing manager.
The CY7C65640-LFC TetraHub controller is priced at $6.93 in volumes of 10,000.
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