Hi Phillip,

excuse me, if my last posting sounds to rude :-(

Your explanation, that it crashes, suggest, that it crashes anytime and the revision E should be avoided in general also for other applications !

But in my opinion also on a bigger current consumption the circuit was still working and the code not crashes.
This was, what I would to tell.

It's a main point for me, that the 2051 work nevertheless and no malfunction occur. In opposition to change (charge) a battery a little earlier can be tolerated mostly.

Have you any information, how far the maximum power down current (20µA at 3V, 100µA at 6V) was exceeded ?


My example with the gold-cap should tell, that also earlier revisions consume current inside the specifications. To power it for 3 years, you need always a battery instead a gold-cap (only 1F).

And I see no reason to believe not, that the problem was fixed on revision F. So I think, for industrial environment you should follow the given hint and order revision F.

The other work around also pointed clearly as not working in general and so it seems for hobbyist purpose only.


Peter