next-generation PMU discussion / Memory 1.8V

[Andy Green]

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Somebody in the thread at some point said:

|>> There is a 1.8V in standby because the memory takes it, we can use that.
|>> ~ When we need 2.2V not sure what the story should be.
|>
|> Don't we need the 2.2 for flashing the ROM?
|
| According to datasheet [MSP430x15x, x16x, x161x]:
| AMR:
|    Vcc to Vss -0.3 to 4.1V
| recommended:
|    during execution: 1.8V to 3.6V
|    during flash: 2.7V(!!) to 3.6V

Huh seems it differs for different members of the family, I saw one with
2.2V some time ago... good catch.

- -Andy
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