[Cryptech Tech] Alpha board BOM and PCB design requirements

Jakob Schlyter jakob at kirei.se
Mon Mar 9 19:41:07 UTC 2015


Regarding the tamper circuit, I cannot parse:

	• At least four digital input pins on a header for four different digital (HIGH) tamper detection mechanisms.
	• At least two digital output pins on a header for four different digital (HIGH) tamper alarms.

Do you mean for 4 input and 4 output, or 4 input and 2 output? Is the tamper test button one of the inputs?

Can we get away with a single battery for both the tamper circuit and the RTC? I would hope so.

	jakob



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