USB High Speed host - IC search help - Page 1
Forum section: electronics / beginners

author: desowin
author_rank: Contributor
timestamp: February 22, 2011, 08:25:05 am
content: I've spent last few days searching for something that would suit my coursework project.I think I found a perfect IC for this task -ST ERICSSON ISP1763A, but it's not available anywhere and the minimum order of 1000 (according to the datasheet, for VFQFPN64 package) is definitely no way for me (treat it as hobby project), I would need no more than 10 of them.So I would like to request some suggestion on choosing another IC for this (or even can be microcontroller with embedded HS host (which can handle two downstream ports)) - I don't need the OTG or Peripheral features (oh, and please no BGA)

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: February 22, 2011, 11:47:50 am
content: ISP1760 looks pretty available - will this do?

author: Zad
author_rank: Super Contributor
timestamp: February 24, 2011, 07:48:00 pm
content: Am I missing something here? The popular NXP LPC1768 has Host/Device/OTG and comes in 100-pin LQFP for £7:43. Olimex do a very fancy dev board for €110.If that is too much, the LPC1754 is £4:53 and 80 pin LQFP.You can pretty much convert pounds directly to US dollars thanks to the rip-off UK economy.

author: Jimmy
author_rank: Regular Contributor
timestamp: February 25, 2011, 11:53:14 am
content: You want something like thishttp://www.circuitsathome.com/products-page/arduino-shields

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: February 26, 2011, 06:36:33 pm
content: Quote from: Jimmy on February 25, 2011, 11:53:14 amThat is not high speed. USB 2.0 does not necessarily mean High Speed (480mbits/s).QuoteYes - it doesn't support high speed, only full speed (12Mbits)

author: Zad
author_rank: Super Contributor
timestamp: February 27, 2011, 03:58:05 pm
content: Okay then, Atmel ATSAM3U4C 100 pin LQFP. USB 2.0 Device: 480 Mbps, 4-kbyte FIFO, up to 7 bidirectional Endpoints,dedicated DMAhttp://uk.farnell.com/atmel/atsam3u4ca-au/ic-mcu-32bit-256k-flash-100lqfp/dp/184166458 in stock, £6:71 each

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: February 27, 2011, 04:00:56 pm
content: Quote from: Zad on February 27, 2011, 03:58:05 pmThat's only device, not host

author: deephaven
author_rank: Frequent Contributor
timestamp: February 27, 2011, 05:27:01 pm
content: How about an Oxford Semiconductor (taken over by PLX it seems) OXU121HP? Farnell is showing stock at £4.11 each.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: February 27, 2011, 07:24:33 pm
content: Quote from: deephaven on February 27, 2011, 05:27:01 pmNope - only high speed in device mode

author: deephaven
author_rank: Frequent Contributor
timestamp: February 27, 2011, 08:38:08 pm
content: Quote from: mikeselectricstuff on February 27, 2011, 07:24:33 pmRats, missed that, sorry!

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: February 27, 2011, 10:56:14 pm
content: Here's one from TIhttp://focus.ti.com/docs/prod/folders/print/tusb6020.htmlLooks like it only has one port though, and a wierd host interface.

author: desowin
author_rank: Contributor
timestamp: February 28, 2011, 04:48:52 pm
content: Quote from: mikeselectricstuff on February 22, 2011, 11:47:50 amsure it will, I overlooked this IC.Thanks!