this post was submitted on 07 Jul 2023

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minnix@lemux.minnix.dev

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Nuvoton MUG51 8-bit 8051 microcontroller is made for battery-free devices (www.cnx-software.com)

submitted 2 years ago by minnix@lemux.minnix.dev to c/microcontrollers@lemux.minnix.dev

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[–] dragontamer@lemmy.world 3 points 2 years ago* (last edited 2 years ago)

I'm not actually impressed by the power.

Normal run: 1.08 mA at 7.3728 MHz

I've... seen better.

Voltage range – 1.8V to 5.5V

On-board LDO

Oh... well... that's cool. 5.5V and 1.08mA is actually impressive, assuming the 1.08mA is measured at this higher voltage.

A lot of the lower-power uCs need buck-converters to drop down to 1.8V requiring an external inductor. This suggests 1.08mA at 5.5V (not that I've read the datasheet yet, but... a more realistic low-cost design). Inductors / buck converter is necessary for the absolutely lowest power usage