Geeky Women In Design: Govindaraman & Gandhi on USB 3.0
In the 02.11.10 issue of Electronic Design, Ashwini Govindaraman and Sonia Gandhi summarize “USB 3.0 - The Next-Generation Interconnect”.
USB is enviable in its ubiquity. (Perhaps someday, we’ll see that kind of universality in some remaining troublesome software - say, video file and electronic book formats - as well.) The authors begin by briefly recapping the history of USB and the evolution from Hi-Speed to SuperSpeed (3 Gbits/s). What follows is an admirably simple discussion of USB architecture and power management, followed by a comparison with other interfaces and a tabular view of differences between USB 2.0 and 3.0.
Wondering how long it will be before USB 3.0 is on the market? Not long at all - at least one device with USB 3.0 is already slated to be revealed at CeBIT 2010 in Hannover this week.
Both Gandhi and Govindaraman are employed by Cypress Semiconductor, whose “offerings include the…PSoC programmable system-on-chip families…CapSense touch sensing and TrueTouch solutions for touchscreens.” Gandhi is a senior applications engineer, and Govindaraman is a product marketing manager currently hacking on an MBA at the Wharton School of Business.
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March 2nd, 2010 at 11:22 pm
ARG! USB is the bane of modern peripherals!
OK, that’s a little over the top.
BUT… its reliance on a host controller, its inability to allow any peer to be a bus master, its tiered-tree topology… well, there are a large number of competing formats that all do the job better: http://en.wikipedia.org/wiki/USB#Comparisons_with_other_device_connection_technologies
USB just happens to be the lowest common denominator.
At least PS/2 is gone…