WEIM buffer control signals - Beacon EmbeddedWorks

Create Account

Create Account

You are here: >> >> >>

Technical Discussion Group Forum

This forum is provided for user discussion. While Beacon EmbeddedWorks support staff and engineers participate, Beacon EmbeddedWorks does not guarantee the accuracy of all information within in the Technical Discussion Group (TDG).

The "Articles" forums provide brief Articles written by Beacon EmbeddedWorks engineers that address the most frequently asked technical questions.

To receive email notifications when updates are posted for a Beacon EmbeddedWorks product download, please subscribe to the TDG Forum of interest.

TDG Forum

Forums
Search Forum
Advanced SearchTopicsPosts

Prev Go to previous topic

Go to next topic

Last Post 09 May 2007 09:03 AM by richard.laborde@logicpd.com

WEIM buffer control signals

2 Replies

Sort:


You are not authorized to post a reply.

Author

Messages

llaa57@yahoo.com

New Member
Posts:

26 Mar 2007 04:02 AM
Hi all, the i.MX31 SOM is equipped with 3 buffers Philips 74ALVC164245. Their control signals are driven by 1.8V-powered logic but datasheet says: "Control inputs voltage range from 2.7 V to 5.5 V" so it seems the voltage swing is not compatible. Am I missing something? Thanks in advance.

kurtl@logicpd.com

New Member
Posts:

30 Mar 2007 10:18 AM
llaa57 Design team is looking into this. Thanks for the heads up. -Kurt

richard.laborde@logicpd.com

Basic Member
Posts:247

09 May 2007 09:03 AM
The response from the NXP FAE is this: “The VIH parameter of the control signals /OE and DIR are indeed missing. We apologize for this oversight on our part. The VIH for the control signals is referenced to VCCA with the same specifications as VIH for the A port.” So the i.MX31 design is ok.

You are not authorized to post a reply.

Forums Freescale / NXP SOMs and Development Kits i.MX31 LITEKIT Development Kit