topic The minimum power consumption of LPC1102 in LPC Microcontrollers

The minimum power consumption of LPC1102

857753886 — Wed, 24 Jul 2019 09:11:09 GMT

We urgently need to know the minimum power consumption of LPC1102 when configured with CPU working mode.In other words, I want to know the minimum CPU configurable frequency.Here are some materials I found for your reference.(the first document is the source code of LPC1102, the second document says the power consumption is 130ua/MHZ, so I want to know the lowest frequency it can reach, the third document page 11, 7.14 clock and power control.)Thanks for your help.

Re: The minimum power consumption of LPC1102

xiangjun_rong — Thu, 25 Jul 2019 04:57:36 GMT

Hi, JinChi,

Regarding the core clock frequency, it can reach up to 50MHz, but we do not specify the minimum clock frequency, in other words, I think the clock frequency can be any value as you want. We gave the spec of 130uA/MHz, generally, the power consumption is proportional to the clock frequency in a limited range of clock frequency, but for extreme clock frequency for example 1KHz, there is a minimum value, but we do not specify in data sheet.

Hope it can help you

Xiangjun Rong