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How long will the supercap on Prop DNA board keep RTC going? — Parallax Forums

How long will the supercap on Prop DNA board keep RTC going?

Don M

Don M Posts: 1,653

2012-11-02 13:32 edited 2012-11-02 15:52 in General Discussion

Just curious if anyone knows. The cap is .33F. Days? Weeks? Months?

Comments

SRLM Posts: 5,045

2012-11-02 13:40 edited 2012-11-02 13:40

Based on this document: roughly 10 days (rule of thumb): http://www.cypress.com/?docID=38895
Martin Hodge Posts: 1,246

2012-11-02 15:52 edited 2012-11-02 15:52

It's not a Cypress, it's a Seiko RTC. About a month by quick calculations. Data sheet is linked here-> 1mgh.com/dna

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