Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers
Announcements
The Intel sign-in experience has changed to support enhanced security controls. If you sign in, click here for more information.
19989 Discussions

The Knowledge Base shows that Vcc (0.9V), and Vccp (1.8V) should come up before Vcceram (0.9V), Vccr_gxb (1.8V), and Vcct_gxb (0.95V). This requires splitting the voltages and adding power switches to sequence the voltages. Is this required?

BAdam1
Beginner
408 Views

What are the ramifications of not sequencing these power rails? Does it cause configuration issues, functional problems, or long term reliability issues?

0 Kudos
3 Replies
BAdam1
Beginner
273 Views

This is for a Cyclone 10 GX device. The device part number is 10CX085YU484I5G.

Busy
Novice
273 Views

Intel recommends power sequencing... If you do not respect them, correct behaviour is not guaranteed and the causes of the dysfunctions may be difficult to detect.

AN692 can help you...

JonWay_C_Intel
Employee
273 Views

Thanks @Busy​  Just to top up some info for @BAdam1​ , you may also want to refer to the https://www.intel.com/content/www/us/en/programmable/documentation/vua1487061384661.html#qwj1528888537561

 

You will need to follow the sequencing, to guarantee the reliability and not to damage the device.

Reply