Embedded Intel Atom® Processors
Technological Conversations about Intel Atom® Hardware, Software, Firmware, Graphics
Announcements
FPGA community forums and blogs on community.intel.com are migrating to the new Altera Community and are read-only. For urgent support needs during this transition, please visit the FPGA Design Resources page or contact an Altera Authorized Distributor.
1225 Discussions

E620 CPU RTC question

lyuqi
Novice
‎05-04-2014 06:38 PM
1,973 Views

Hi,

We have a customized E620 Q7 board, as we want to calculate the battery lifespan for the RTC, my question is what is the current consumption on the VCC33RTC pin(M13) when the power is off as well as the leakage current of the RTCRST_B pin (AA2)

 

Thank you

 

0 Kudos

Link Copied

2 Replies
WILLIAM_C_Intel
Employee
‎05-05-2014 01:43 AM
1,043 Views

Hi Liyuqian,

The ICH/PCH RTC circuit is a low current circuit designed to provide accurate time keeping service, at an extremely low current consumption (IccRTC) a maximum of 5 or 6 μA. For further information you could find it on Section 2 Page 9 of https://www-ssl.intel.com/content/dam/doc/application-note/ich-family-real-time-clock-accuracy-considerations-note.pdf Intel® I/O Controller Hub (Intel® ICH) /Platform Controller Hub (PCH) Family Real Time Clock (RTC). Good luck!

Best regards,

William

.

Copy link
lyuqi
Novice
‎05-05-2014 01:55 AM
1,043 Views
In response to WILLIAM_C_Intel

Hi William,

Thanks for you quick reply, that document is very helpful for me

Yuqian

In response to WILLIAM_C_Intel
0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.